Re: Load balance for POP3
Roger, On Fri, 27 Jun 2008, Roger Olofsson wrote: |[EMAIL PROTECTED] skrev: | | I need to switch the users connections between two POP3 servers based on | login information. | Since the login is part of the pop3 handshake, I'm stuck on how to | transfer the connection and pass the info already sent. | I'm trying to script something with socat | (http://www.dest-unreach.org/socat/doc/socat.html). | | I'll appreciate any clue. | |You might want to take a look at Pen /usr/ports/net/pen. In this case Pen does not help, since I want to decide which server to switch after login. - Marcelo ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
[EMAIL PROTECTED] wrote: First off, thanks for such a prompt response. :-) [EMAIL PROTECTED] wrote: I'm the webmaster for www.marssociety.org, which is a FreeBSD 6.2-RELEASE box running on a dual-core AMD Opteron setup with 4GB of RAM. The box is reasonably busy, as it's the sole piece of hardware running web, database, and mail operations for the Mars Society, an international nonprofit group dedicated to space exploration. We regularly send out newsletters to ~10,000 members, and our web site is averaging ~50,000-100,000 hits/day. The main portion of the web site is run via the Zope/Plone CMS system (Plone 2.5, for anyone who may care). Recently, it's been slowing down dramatically, and our Plone guy (not me -- I inherited the system and can't stand it) can't figure out why. I've been diving into OS-related issues, and in so doing, I ran across what appears to be a very high number of context switches going on. Here's some sample output from vmstat 2: A few hundred or thousand context switches per second is trivial load. That is not your problem. Modern CPUs can do hundreds of thousands per second before it starts to become a problem. OK, well that's good to know. Note that your system is 50% idle and spending almost no time in the kernel. This basically means that only one core is doing work, which might be because you're not giving it enough work to do. There are only 1-2 running tasks for most of your trace, one of which is probably vmstat itself, so that means there is only one running server process (which can obviously only saturate at most 1 CPU). Actually, I decided to run vmstat this morning for a little while after turning off Zope, and during the couple of minutes I had it going, the number of processes running (as indicated by the leftmost column of vmstat's output) was at 0 for all but one line worth of output, so I would guess that vmstat's not including itself in the number of processes there. Even so, though, your assessment about how saturated the CPU is is of course still valid, which leads me to a follow-up question: by default, can a multi-threaded app use both cores? Or would I need to have two instances of the process running (Zope is apparently able to handle multiple instances running reasonably well) in order to have it fully utilize the CPU? In 6.x. the default thread library is quite inefficient although it can make use of multiple CPUs (again, providing the application is giving them work to do). For multi-threaded performance you will be better off switching to the libthr library (see libmap.conf(5)) or updating to 7.0 (where it is the default). This isn't likely to be the underlying issue if you are trying to debug a loss of performance relative to the same configuration in the past though. However it may well be that you can obtain better performance either by upgrading the OS, or tuning zope to give a better work distribution. The trace suggests that your performance problems are either in userland, or elsewhere in your network or application stack, possibly due to interactions between components. Try to look at why the system is not being given enough work to keep it saturated. Any tips on tools I could use to check this out? I'll of course be looking at Zope profiling tools, to see if I can have them tell me where any bottlenecks are, but if there are any OS-level tools that I could use to profile a given process (or group thereof) for problems, I'd really appreciate hearing about them (simple links to man pages or the like would be fine, I don't mean to waste your time explaining how tools work when I can usually figure it out on my own). ktrace, tcpdump, hwpmc, the kernel audit system, MUTEX_PROFILING/LOCK_PROFILING(9) are various utilities you can use to profile the system workload (probably in decreasing order of utility for you). Some of these are less usable in 6.x though. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
On Mon, 30 Jun 2008 10:48:25 -0400 [EMAIL PROTECTED] wrote: Actually, I decided to run vmstat this morning for a little while after turning off Zope, and during the couple of minutes I had it going, the number of processes running (as indicated by the leftmost column of vmstat's output) was at 0 for all but one line worth of output, so I would guess that vmstat's not including itself in the number of processes there. Even so, though, your assessment about how saturated the CPU is is of course still valid, which leads me to a follow-up question: by default, can a multi-threaded app use both cores? Or would I need to have two instances of the process running (Zope is apparently able to handle multiple instances running reasonably well) in order to have it fully utilize the CPU? You need to run ZEO if you want to make use of multiple CPUs in Zope. Here's a small HOWTO. It's for gentoo, but easily adaptable to FreeBSD: http://gentoo-wiki.com/HOWTO_ZEO/Zope_and_Plone Good luck optimizing the Beast! ;-) Alex Kirk -cpghost. -- Cordula's Web. http://www.cordula.ws/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Load balance for POP3
[EMAIL PROTECTED] wrote: Roger, On Fri, 27 Jun 2008, Roger Olofsson wrote: |[EMAIL PROTECTED] skrev: | | I need to switch the users connections between two POP3 servers based on | login information. | Since the login is part of the pop3 handshake, I'm stuck on how to | transfer the connection and pass the info already sent. | I'm trying to script something with socat | (http://www.dest-unreach.org/socat/doc/socat.html). | | I'll appreciate any clue. | |You might want to take a look at Pen /usr/ports/net/pen. In this case Pen does not help, since I want to decide which server to switch after login. would nginx (as described here http://highscalability.com/nginx-high-performance-smpt-pop-imap-proxy) be more what your after? Vince - Marcelo ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
FreeBSD, Squid, Active Directory integration
I am searching for a way to passthru (not prompt the user for authentication) a Windows users' Active Directory credentials to Squid running on FreeBSD. With this AD info I can ACL where the user can go and have their individual usage logged All the HOWTO's I found seem to require a manual authentication though. I would prefer this to other alternatives ($) which can do this natively, Window ISA server being one of these products. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Off Topic: Sunbird calendar server?
On Sunday 29 June 2008 13:20:11 Andrew Berry wrote: On 28-Jun-08, at 12:01 AM, Jack Barnett wrote: She is a fan of Google Calendars (which I admit works well), but I'm a fan of Sunbird (since it's local and don't need internets for it to work). I could probably convert her to Sunbird if I found a good way to share out our calendars. As long as you just want to see the other persons calendar, Google can export a calendar as an iCal subscription, or as an XML feed. gcaldaemon might also be something to look into: http://gcaldaemon.sourceforge.net/index.html The problem that I've had is that I want a web front end which can talk to a CalDav server. Zimbra has it, but it's a very heavy install and only supports Linux :( --Andrew The latest sunbird has an add on google provider I think it is called. It will enable 2 way with sunbird to access to your google cals. Mike -- Michael W. Holdeman Chief Porter Fire Department Powered by Kubunty Hardy 8.04, KDE-4.1 beta http://kubuntu.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: FreeBSD and Active Directory
What version of Samba are you using? I am getting an error trying to load the pam_winbind.so when a user tries to authenticate. --- Chris Edwards Smartech Corp. Div. of AirNet Group http://www.airnetgroup.com http://www.smartechcorp.net [EMAIL PROTECTED] P: 423-664-7678 x114 C: 423-593-6964 F: 423-664-7680 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Derek Ragona Sent: Thursday, June 26, 2008 3:48 PM To: Chris Edwards; freebsd-questions@freebsd.org Subject: Re: FreeBSD and Active Directory At 02:20 PM 6/26/2008, Chris Edwards wrote: I have been put in charge of creating a single sign-on mechanism for our Windows 2003 and FreeBSD servers. We are wanting to use Active Directory as our LDAP server. I know of four different methods that could possibly work. 1. OpenLDAP 2. Radius 3. NIS 4. WinBind / Samba Which is the most excepted/supported way to do this? Several of the severs are very old, 4+ years old. Thanks for any help, --- Chris Edwards I have had no trouble using winbind/samba as a secondary controller to the Windows 2003 AD server. I will say that not all the utilities work, but the functionality does work just fine. -Derek -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Off Topic: Sunbird calendar server?
On Monday 30 June 2008 10:53:00 Michael W. Holdeman wrote: On Sunday 29 June 2008 13:20:11 Andrew Berry wrote: On 28-Jun-08, at 12:01 AM, Jack Barnett wrote: She is a fan of Google Calendars (which I admit works well), but I'm a fan of Sunbird (since it's local and don't need internets for it to work). I could probably convert her to Sunbird if I found a good way to share out our calendars. As long as you just want to see the other persons calendar, Google can export a calendar as an iCal subscription, or as an XML feed. gcaldaemon might also be something to look into: http://gcaldaemon.sourceforge.net/index.html The problem that I've had is that I want a web front end which can talk to a CalDav server. Zimbra has it, but it's a very heavy install and only supports Linux :( --Andrew The latest sunbird has an add on google provider I think it is called. It will enable 2 way with sunbird to access to your google cals. Mike Hate replting to my own. But FWIW I also set up Kontact-4.1-beta with the gcaldeamon and it seems to be working swell. Mike -- Michael W. Holdeman Chief Porter Fire Department Powered by Kubunty Hardy 8.04, KDE-4.1 beta http://kubuntu.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: usb mouse is detected by fbsd 7 but not X
I had the same problem when 2 weeks ago i installed FreeBSD7.
the solution was:
# Xorg -configure to create an default xorg.conf file.
{http://www.freebsd.org/doc/en/books/handbook/x-config.html}
Apparently for the mouse to work it needs a default{at least} xorg.conf file.
-nicolas
PS: If this is regular behaviour of X11 shouldn't a note be made in
the handbook?
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Re: Change in /etc/rc.conf:ipv6_defaultrouter
,--- Kirk Strauser writes: | On Sunday 29 June 2008, Ashish Shukla आशीष शुक्ल wrote: || I think how without specifying zone index[1] in link-local address || worked, it is probably due to availability of only single inet6 || interface except lo0. | The physical and virtual interfaces on the system are exactly as before. | I'm guessing that my setup worked as a side effect of a now-fixed bug, | probably the same one that was preventing me from using the 2001: | defaultrouter when I first got the system up and running. Did you mean your setup stopped working after you compiled new kernel, hmm...? || Just wanted to confirm, is following command worked ? if possible paste || the output: || || % ping6 fe80::213:10ff:fe79:137a | $ ping6 fe80::213:10ff:fe79:137a | ping6: UDP connect: Network is unreachable Yes, this is the expected behavior. Ashish -- ·-- ·- ·--- ·- ···- ·- ·--·-· --· -- ·- ·· ·-·· ·-·-·- -·-· --- -- pgpgB8LucLOXT.pgp Description: PGP signature
Re: Change in /etc/rc.conf:ipv6_defaultrouter
On Monday 30 June 2008, Ashish Shukla आशीष शुक्ल wrote: Did you mean your setup stopped working after you compiled new kernel, hmm...? Yes. Unfortunately, I'm not sure exactly when it happened. I saw an article on Slashdot about IPv6, went to look at my maillog to see how much traffic I'd been getting, and found none. So back to my original post: take this as a heads-up. Anyone who had a setup like mine that suddenly stopped working might be able to fix it by updating their defaultrouter. -- Kirk Strauser signature.asc Description: This is a digitally signed message part.
Re: filesystem information
On Mon, Jun 30, 2008 at 7:30 AM, Bill Moran [EMAIL PROTECTED] wrote: In response to Jim [EMAIL PROTECTED]: I have a computer that is in a situation where it is losing power occasionally. All but one of the filesystems are going along fine. Once file system seems to lose data on a power outage. Even if it only reads a file, and doesn't write it, it may still lose a file (ex, about half the audio files on my xmms playlist, a couple data files in my wine directory that, to my knowledge, are unlikely to be written after they are first installed). What I'd like to do is get an output of the flags and options on my filesystems to see what is different between that filesystem and the others. Any suggestion on how to do that? This particular FS has lasted through several rebuilds since it doesn't hold OS critical stuff, just data files. tunefs -p and/or dumpfs -m Any suggestions? Sounds like you're on the right track with hunting this down. Perhaps turn softupdates off and mount the filesystem sync if you're seeing lots of power outages. -- Bill Moran http://www.potentialtech.com Thanks, it looks like the 'good' filesystems have softupdates off (except one), and the one the broke has it off. I thought softupdates were supposed to fix this? Is gjournal a better solution? Is 'just use neither' a better solution? Any reference material on the subject would be appreciated (I'm about to use google now). Thanks, -Jim Stapleton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: fusefs-ghoto2fs
chip [EMAIL PROTECTED] writes: I found a pkg to add that supposed will allow me to mount the camera as a filesystem, it's called fusefs-gphotofs. The following instructions are given at the end of the pkg_add process - Now fuse filesystems (sysutils/fusefs-*) can be mounted at startup from /etc/fstab with the late parameter. This requires a symlink in /usr/sbin named mount_fstype, which is not created by all the fusefs ports. I am not sure what this means. Iknow how to add an entry to the fstab, I've done that years ago for a floppy drive. But there appears to be not enough info in those instructions to get the fusefs listed in the fstab. Anyone have any experience with this? What *is* the filesystem type? Is there an /sbin/mount_fstype on your system? -- Lowell Gilbert, embedded/networking software engineer, Boston area http://be-well.ilk.org/~lowell/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Change in /etc/rc.conf:ipv6_defaultrouter
,--- Kirk Strauser writes: | On Monday 30 June 2008, Ashish Shukla आशीष शुक्ल wrote: || Did you mean your setup stopped working after you compiled new kernel, || hmm...? | Yes. Unfortunately, I'm not sure exactly when it happened. I saw an | article on Slashdot about IPv6, went to look at my maillog to see how much | traffic I'd been getting, and found none. | So back to my original post: take this as a heads-up. Anyone who had a | setup like mine that suddenly stopped working might be able to fix it by | updating their defaultrouter. Okay, thanks for the info. Ashish -- ·-- ·- ·--- ·- ···- ·- ·--·-· --· -- ·- ·· ·-·· ·-·-·- -·-· --- -- pgpIPIAY2FiM1.pgp Description: PGP signature
Re: filesystem information
On Mon, Jun 30, 2008 at 12:30:38PM -0400, Jim wrote: On Mon, Jun 30, 2008 at 7:30 AM, Bill Moran [EMAIL PROTECTED] wrote: In response to Jim [EMAIL PROTECTED]: I have a computer that is in a situation where it is losing power occasionally. All but one of the filesystems are going along fine. Once file system seems to lose data on a power outage. Even if it only reads a file, and doesn't write it, it may still lose a file (ex, about half the audio files on my xmms playlist, a couple data files in my wine directory that, to my knowledge, are unlikely to be written after they are first installed). What I'd like to do is get an output of the flags and options on my filesystems to see what is different between that filesystem and the others. Any suggestion on how to do that? This particular FS has lasted through several rebuilds since it doesn't hold OS critical stuff, just data files. tunefs -p and/or dumpfs -m Any suggestions? Sounds like you're on the right track with hunting this down. Perhaps turn softupdates off and mount the filesystem sync if you're seeing lots of power outages. Ans set 'hw.ata.wc=0' in /boot/loader.conf to stop the drives from caching writes. Thanks, it looks like the 'good' filesystems have softupdates off (except one), and the one the broke has it off. I thought softupdates were supposed to fix this? Is gjournal a better solution? Is 'just use neither' a better solution? WRT softupdates/gjournal, see below. In case of frequent power outages, I guess the right answer is get a UPS. :) Without a UPS nothing can protect you against power outages. Even when running the filesystem with the sync flag and setting ATA devices to write-through the cache cannot guarantee you won't lose data. If the power fails when a write is in progress, you're screwed. A proper UPS with monitoring software will give your system time to shut down properly (finishing writes, unmounting etc) before its battery runs out. Any reference material on the subject See http://en.wikipedia.org/wiki/Soft_updates : Instead of duplicating metadata writes in a journal, soft updates work by properly ordering the metadata writes to guarantee consistency after a crash. Like journaling, soft updates do not guarantee that no data will be lost, but do make sure the filesystem is consistent In FreeBSD softupdates have a longer track record than journaling. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpSsHWWBWGIU.pgp Description: PGP signature
Re: filesystem information
Ans set 'hw.ata.wc=0' in /boot/loader.conf to stop the drives from caching writes. it will GREATLY reduce write performance. not just a bit, but many times. WRT softupdates/gjournal, see below. In case of frequent power outages, I guess the right answer is get a UPS. :) it is definitely the only solution. and not expensive today ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: calcru: runtime went backwards errors
I've been seeing errors like the following appearing: Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 261 usec to 258 usec for pid 516 (devd) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 4976 usec to 4926 usec for pid 367 (pflogd) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 588 usec to 582 usec for pid 133 (adjkerntz) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 681 usec to 674 usec for pid 20 (swi6: task queue) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 486 usec to 481 usec for pid 0 (swapper) and narrowed down the cause to openntpd. Do these errors fall into the Mostly Harmless category? yes. time turned backward and system get confused. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
Kris Kennaway wrote: In 6.x. the default thread library is quite inefficient although it can make use of multiple CPUs (again, providing the application is giving them work to do). For multi-threaded performance you will be better off switching to the libthr library (see libmap.conf(5)) or updating to 7.0 (where it is the default). This isn't likely to be the underlying issue if you are trying to debug a loss of performance relative to the same configuration in the past though. Indeed Plone is written in python, and python has a Big Giant Lock inside which insures that only one thread can execute, in order to protect the python structures. This lock is only released under special circumstances, such as doing IO. Hence it is necessary to run several instances of python programs and do synchronization work, if one wants to make use of several CPUs, or use python threads, and immediately make some IOs, or similar techniques. It may be that using Jython, if possible, yields better threading behavior. When doing some work according to these ideas, i had found quite severe contention, and this was not cured when switching native threading libraries (libksd, libthr, etc.). The problem is really inside python. -- Michel TALON ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: filesystem information
On Mon, Jun 30, 2008 at 07:05:51PM +0200, Wojciech Puchar wrote: Ans set 'hw.ata.wc=0' in /boot/loader.conf to stop the drives from caching writes. it will GREATLY reduce write performance. not just a bit, but many times. Of course. And mounting filesystems with sync will also reduce performance. But if you have frequent outages and without a UPS they will at least help shorten fsck times and lessen potential data loss. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpjJuylc9Yt6.pgp Description: PGP signature
Re: Too Much Context Switching?
Michel Talon wrote: Kris Kennaway wrote: In 6.x. the default thread library is quite inefficient although it can make use of multiple CPUs (again, providing the application is giving them work to do). For multi-threaded performance you will be better off switching to the libthr library (see libmap.conf(5)) or updating to 7.0 (where it is the default). This isn't likely to be the underlying issue if you are trying to debug a loss of performance relative to the same configuration in the past though. Indeed Plone is written in python, and python has a Big Giant Lock inside which insures that only one thread can execute, in order to protect the python structures. This lock is only released under special circumstances, such as doing IO. Hence it is necessary to run several instances of python programs and do synchronization work, if one wants to make use of several CPUs, or use python threads, and immediately make some IOs, or similar techniques. It may be that using Jython, if possible, yields better threading behavior. When doing some work according to these ideas, i had found quite severe contention, and this was not cured when switching native threading libraries (libksd, libthr, etc.). The problem is really inside python. Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
7.0 No Sound: emu10k1
I'm hoping that someone can help me get my soundcard working properly with FreeBSD 7.0. I have tried all of the suggestions in the handbook, and am at a loss on next steps to diagnose. I am starting to think that I am missing something very simple. Hardware: SoundBlaster Audigy 2 ZS (PCI bus) installed in Dell Dimension 4100 (P3 1Ghz circa 2001, no internal sound card) Software: FreeBSD 7.0p2 (GENERIC kernel updated using freebsd-update) Driver: snd_emu10k1 (via loader.conf) I am not getting any error messages that indicate a problem. The driver is loading and /dev/sndstat shows proper output. The issue is that I get absolutely no sound out of my soundcard. I have tried using mpg123, and cat file /dev/dsp without any output. The mixer levels look good (to me), and I am getting no failure messages. I have tested the speakers with another audio source (no issues), and am about the try swapping the soundcard into a new machine (running a different OS) to ensure that the card itself is not fried. Apologies for the long email, see detailed output below... Thanks in advance! --Dave == uname -a FreeBSD x-bsd.private.nullcore.com 7.0-RELEASE-p2 FreeBSD 7.0-RELEASE-p2 #0: Wed Jun 18 07:33:20 UTC 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 === cat loader.conf snd_emu10k1_load=YES === sysctl -a |grep hw.snd hw.snd.latency_profile: 1 hw.snd.latency: 5 hw.snd.report_soft_formats: 1 hw.snd.compat_linux_mmap: 0 hw.snd.feeder_buffersize: 16384 hw.snd.feeder_rate_round: 25 hw.snd.feeder_rate_max: 2016000 hw.snd.feeder_rate_min: 1 hw.snd.verbose: 4 hw.snd.maxautovchans: 16 hw.snd.default_unit: 0 hw.snd.version: 2007061600/i386 hw.snd.default_auto: 0 sysctl -a |grep pcm dev.pcm.0.%desc: Creative Audigy (EMU10K2) dev.pcm.0.%driver: pcm dev.pcm.0.%location: slot=9 function=0 dev.pcm.0.%pnpinfo: vendor=0x1102 device=0x0004 subvendor=0x1102 subdevice=0x2005 class=0x040100 dev.pcm.0.%parent: pci2 dev.pcm.0.eapd: 1 dev.pcm.0.play.vchans: 1 dev.pcm.0.play.vchanrate: 48000 dev.pcm.0.play.vchanformat: s16le dev.pcm.0.rec.vchans: 1 dev.pcm.0.rec.vchanrate: 48000 dev.pcm.0.rec.vchanformat: s16le dev.pcm.0.buffersize: 4096 = dmesg |grep pcm pcm0: Creative Audigy (EMU10K2) port 0xdf00-0xdf3f irq 10 at device 9.0 on pci2 pcm0: SigmaTel STAC9750/51 AC97 Codec pcm0: [ITHREAD] with hw.snd.verbose=4, dmesg shows the following after trying to play an mp3 file for several seconds: sndbuf_remalloc(): b=0xc2883b00 0 - 4096 [4096] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 sndbuf_remalloc(): b=0xc2883b00 4096 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[2048/64/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 4096 [2048] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=4096 pcm0: chn_trigger() pcm0:play:dsp0.p1: calling go=0x , prev=0x chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 4096 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 sndbuf_remalloc(): b=0xc2883b00 4096 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[2048/64/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 4096 [2048] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 4096 - 8192 [8192] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=256 b[4096/256/2] bs[8192/256/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 8192 - 16384 [16384] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=128 b[4096/512/2] bs[16384/512/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 16384 - 65536 [65536] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=23 b[4096/2048/2] bs[65536/2048/32] limit=4096 pcm0: chn_trigger() pcm0:play:dsp0.p1: calling go=0x , prev=0x chn_resizebuf: PCMDIR_PLAY (hardware) timeout=23 b[4096/2048/2] bs[65536/2048/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 65536 [65536] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 sndbuf_remalloc(): b=0xc2883b00 65536 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[2048/64/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 65536 [2048] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 65536 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=256 b[4096/256/2]
Re: Too Much Context Switching?
On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. -- Michel TALON ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: 7.0 No Sound: emu10k1
Besides having loaded the snd_emu10k1, have you made sure you have the sound driver loaded? In order to get any sound you need both of them loaded into the kernel .. the sound module loads the sound system .. and the snd_xxx just loads the right module for your sound card... so, basically, check you have both modules loaded ... This is how my sound config looks like on my kernel configuration: # Sound device sound device snd_emu10k1 # SoundBlaster Live! If you do have the sound module loaded, try unloading the snd_emu10k1 and load the snd_emu10kx which seem to be the right module for Audigy cards. More info: man snd_emu10kx Hope this helped :) -- Blessings Gonzalo Nemmi On Monday 30 June 2008 14:43:11 David Horn wrote: I'm hoping that someone can help me get my soundcard working properly with FreeBSD 7.0. I have tried all of the suggestions in the handbook, and am at a loss on next steps to diagnose. I am starting to think that I am missing something very simple. Hardware: SoundBlaster Audigy 2 ZS (PCI bus) installed in Dell Dimension 4100 (P3 1Ghz circa 2001, no internal sound card) Software: FreeBSD 7.0p2 (GENERIC kernel updated using freebsd-update) Driver: snd_emu10k1 (via loader.conf) I am not getting any error messages that indicate a problem. The driver is loading and /dev/sndstat shows proper output. The issue is that I get absolutely no sound out of my soundcard. I have tried using mpg123, and cat file /dev/dsp without any output. The mixer levels look good (to me), and I am getting no failure messages. I have tested the speakers with another audio source (no issues), and am about the try swapping the soundcard into a new machine (running a different OS) to ensure that the card itself is not fried. Apologies for the long email, see detailed output below... Thanks in advance! --Dave == uname -a FreeBSD x-bsd.private.nullcore.com 7.0-RELEASE-p2 FreeBSD 7.0-RELEASE-p2 #0: Wed Jun 18 07:33:20 UTC 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 === cat loader.conf snd_emu10k1_load=YES === sysctl -a |grep hw.snd hw.snd.latency_profile: 1 hw.snd.latency: 5 hw.snd.report_soft_formats: 1 hw.snd.compat_linux_mmap: 0 hw.snd.feeder_buffersize: 16384 hw.snd.feeder_rate_round: 25 hw.snd.feeder_rate_max: 2016000 hw.snd.feeder_rate_min: 1 hw.snd.verbose: 4 hw.snd.maxautovchans: 16 hw.snd.default_unit: 0 hw.snd.version: 2007061600/i386 hw.snd.default_auto: 0 sysctl -a |grep pcm dev.pcm.0.%desc: Creative Audigy (EMU10K2) dev.pcm.0.%driver: pcm dev.pcm.0.%location: slot=9 function=0 dev.pcm.0.%pnpinfo: vendor=0x1102 device=0x0004 subvendor=0x1102 subdevice=0x2005 class=0x040100 dev.pcm.0.%parent: pci2 dev.pcm.0.eapd: 1 dev.pcm.0.play.vchans: 1 dev.pcm.0.play.vchanrate: 48000 dev.pcm.0.play.vchanformat: s16le dev.pcm.0.rec.vchans: 1 dev.pcm.0.rec.vchanrate: 48000 dev.pcm.0.rec.vchanformat: s16le dev.pcm.0.buffersize: 4096 = dmesg |grep pcm pcm0: Creative Audigy (EMU10K2) port 0xdf00-0xdf3f irq 10 at device 9.0 on pci2 pcm0: SigmaTel STAC9750/51 AC97 Codec pcm0: [ITHREAD] with hw.snd.verbose=4, dmesg shows the following after trying to play an mp3 file for several seconds: sndbuf_remalloc(): b=0xc2883b00 0 - 4096 [4096] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 sndbuf_remalloc(): b=0xc2883b00 4096 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[2048/64/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 4096 [2048] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=4096 pcm0: chn_trigger() pcm0:play:dsp0.p1: calling go=0x , prev=0x chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 4096 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[4096/64/64] limit=4096 sndbuf_remalloc(): b=0xc2883b00 4096 [4096] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=1024 b[4096/64/2] bs[2048/64/32] limit=0 sndbuf_remalloc(): b=0xc2883b00 4096 [2048] NOCHANGE chn_resizebuf: PCMDIR_PLAY (hardware) timeout=512 b[4096/128/2] bs[4096/128/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 4096 - 8192 [8192] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=256 b[4096/256/2] bs[8192/256/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 8192 - 16384 [16384] chn_resizebuf: PCMDIR_PLAY (hardware) timeout=128 b[4096/512/2] bs[16384/512/32] limit=4096 sndbuf_remalloc(): b=0xc2883b00 16384 - 65536 [65536] chn_resizebuf: PCMDIR_PLAY (hardware)
Re: Too Much Context Switching?
Michel Talon wrote: On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. Yes, it could be that. I don't know off-hand whether multiple threads are counted separately by vmstat (at a guess I'd say no), but ps/top/etc should show how many are active in the python process. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: filesystem information
In case of frequent power outages, I guess the right answer is get a UPS. :) Aye, I just got one. But for the longest time, it was a bit out of my price range due to other priorities. Actually, the whole model line was defective, so they are sending me a new one, and I have to wait for it to arrive. Without a UPS nothing can protect you against power outages. Even when running the filesystem with the sync flag and setting ATA devices to write-through the cache cannot guarantee you won't lose data. If the power fails when a write is in progress, you're screwed. I'm aware of nothing but a UPS can completely protect me from an outage. I was just wondering why that ONE file system was misbehaving, and the rest are prefectly fine - which seemed odd. Additionally, why were files that are read, but not written, being lost? I can understand losing files that are being written, but if there's a file that has bene written several restarts ago, not written to thereafter, and has been fine ever since, why is it being lost now? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: filesystem information
In response to Jim [EMAIL PROTECTED]: I'm aware of nothing but a UPS can completely protect me from an outage. I was just wondering why that ONE file system was misbehaving, and the rest are prefectly fine - which seemed odd. Additionally, why were files that are read, but not written, being lost? I can understand losing files that are being written, but if there's a file that has bene written several restarts ago, not written to thereafter, and has been fine ever since, why is it being lost now? If the files themselves are disappearing, then it could be the directory entry that's getting corrupted. You mentioned mp3s earlier ... if I had to guess, I'd say you frequently add and rename files in that directory. If the power goes out during an update to the directory entry, it's anybody's guess as to what filenames could disappear. Even if you're not doing it directly, is your mp3 software writing temp or other status files to that directory? If you're curious, you could run your mp3 software under ktrace and then grep the output for file creation and removal syscalls. Just speculation. -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
In 6.x. the default thread library is quite inefficient although it can make use of multiple CPUs (again, providing the application is giving them work to do). For multi-threaded performance you will be better off switching to the libthr library (see libmap.conf(5)) or updating to 7.0 (where it is the default). This isn't likely to be the underlying issue if you are trying to debug a loss of performance relative to the same configuration in the past though. Indeed Plone is written in python, and python has a Big Giant Lock inside which insures that only one thread can execute, in order to protect the python structures. This lock is only released under special circumstances, such as doing IO. Hence it is necessary to run several instances of python programs and do synchronization work, if one wants to make use of several CPUs, or use python threads, and immediately make some IOs, or similar techniques. It may be that using Jython, if possible, yields better threading behavior. When doing some work according to these ideas, i had found quite severe contention, and this was not cured when switching native threading libraries (libksd, libthr, etc.). The problem is really inside python. Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It's actually been a long, slow, steady degradation of performance as best I can tell, that's recently just reached proportions that are so ridiculous that it's gone from this sucks but I can deal to this is completely unusable. The system has been slow from the start, just not this slow. I guess I'll need to investigate this...and while I know that Python is somewhat off-topic, if anyone here has any suggestions on where to start, they'd be much appreciated. :-) Alex ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: 7.0 No Sound: emu10k1
Thanks for the hint. snd_emu10kx instead of snd_emu10k1 (doh!) I knew it had to be something simple. Everything is working great now. --_Dave ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: filesystem information
If the files themselves are disappearing, then it could be the directory entry that's getting corrupted. The files are there, but their content is corrupted. Even if you're not doing it directly, is your mp3 software writing temp or other status files to that directory? If you're curious, you could run your mp3 software under ktrace and then grep the output for file creation and removal syscalls. OK. The files are actually FLAC, and I use XMMS. I assume I trace XMMS and not the FLAC library? I'll try when I get home. Thanks -Jim Stapleton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: filesystem information
In response to Jim [EMAIL PROTECTED]: If the files themselves are disappearing, then it could be the directory entry that's getting corrupted. The files are there, but their content is corrupted. Well ... that seems to contradict my theory ... Even if you're not doing it directly, is your mp3 software writing temp or other status files to that directory? If you're curious, you could run your mp3 software under ktrace and then grep the output for file creation and removal syscalls. OK. The files are actually FLAC, and I use XMMS. I assume I trace XMMS and not the FLAC library? I'll try when I get home. Thanks Not familiar with the XMMS/FLAC software architecture, so I can't be sure ... but my guess would be that tracing XMMS is going to catch any oddities in file creation. -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: 7.0 No Sound: emu10k1
Glad to hear I helped you out and you solved your problem :) -- Blessings Gonzalo Nemmi On Monday 30 June 2008 16:28:37 David Horn wrote: Thanks for the hint. snd_emu10kx instead of snd_emu10k1 (doh!) I knew it had to be something simple. Everything is working great now. --_Dave ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: trouble shooting samba performance
On Tue, Jun 24, 2008 at 5:25 PM, Sten Daniel Soersdal [EMAIL PROTECTED] wrote: worms wrote: Hello, Can anyone point me to a guide on trouble shooting samba performance or a quick list of common issues I can check for. I've been googling but haven't found much that referenced a recent version of FreeBSD and Samba. I am running FreeBSD 7.0 on VmWare Server 2.0 hosted on a CentOS Linux box. I've used nttcp and iozone to verify that the performance of the FreeBSD 7.0 VM is good and am able to copy 6.5GB on disk from one location to another in about 2.5 minutes. Copying to a Windows 2003 server yields a 45 minute transfer time. Copying to a Windows XP workstation yields a 4 minute transfer time Summary: FreeBSD 7.0 -- FreeBSD 7.0 -- 2.5 minutes ( copying on disk ) FreeBSD 7.0 -- WinXP -- 4 minutes ( samba ) FreeBSD 7.0 - Windows 2003 -- 45 minutes ( samba ) WinXP -- Windows 2003 -- 5 minutes Both windows machines are on the same domain. I've used samba for a number of years and this is the first time I've ran into a problem such as this. So if someone could give me a good starting point on how to troubleshoot this I'd appreciate it. Thanks --Lance The numbers indicate something i've seen several times but there has been different answers to it. Sometimes it was the indication that the RAID on the Windows2003 server was misconfigured or running in DEGRADED mode. However i've also seen issues regarding TCP/IP settings. Often it can be a good exercise to try to toggle this sysctl before transfer (net.inet.tcp.delayed_ack). Of course these are just clues and not real answers. -- Sten Daniel Soersdal Thanks for the advice Sten, I'll give that sysctl a try and double check the RAID on the windows machine. --Lance ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
OT: anyone been crazy enough to mirror wikipedia?
So call me a sociopath, but times are a bit scary. I'd like to do the 2000's equivalent of the 1960's bomb shelter, and have my very own snapshot in case of major local/regional internet disruption, etc. What would be the best way to go about this. I see with 1T words, it appears doable on current technology. Maybe they should offer a snapshot on DVDs or disk as a fundraiser? I'd drop $300 for some sort of officially licenced copy, I suspect there are other freaks that would too... Steve ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
priority or order for /usr/local/etc/rc.d scripts?
Hi guys, Basically, I have 2 scripts in the folder /usr/local/etc/rc.d/ Resin.sh and apache.sh I need resin to be started when apache is starting, how can I do that? I cant find any documentation on priority or order for startup scripts. I have tried adding a line at the end of resin.sh to start apache.sh but it doesnt work. # uname -a FreeBSD www.mydomain.com 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 Thanks for your help! -fred ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OT: anyone been crazy enough to mirror wikipedia?
In response to Steve Franks [EMAIL PROTECTED]: So call me a sociopath, but times are a bit scary. I'd like to do the 2000's equivalent of the 1960's bomb shelter, and have my very own snapshot in case of major local/regional internet disruption, etc. http://en.wikipedia.org/wiki/Wikipedia:Database_download -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: priority or order for /usr/local/etc/rc.d scripts?
At 03:37 PM 6/30/2008, fred wrote: Hi guys, Basically, I have 2 scripts in the folder /usr/local/etc/rc.d/ Resin.sh and apache.sh I need resin to be started when apache is starting, how can I do that? I can't find any documentation on priority or order for startup scripts. I have tried adding a line at the end of resin.sh to start apache.sh but it doesn't work. # uname -a FreeBSD www.mydomain.com 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 Thanks for your help! -fred They are mostly done in alphabetic order, so if you need one BEFORE apache, rename it aa_something. -Derek ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OT: anyone been crazy enough to mirror wikipedia?
Steve Franks wrote: So call me a sociopath, but times are a bit scary. I'd like to do the 2000's equivalent of the 1960's bomb shelter, and have my very own snapshot in case of major local/regional internet disruption, etc. What would be the best way to go about this. I see with 1T words, it appears doable on current technology. Maybe they should offer a snapshot on DVDs or disk as a fundraiser? I'd drop $300 for some sort of officially licenced copy, I suspect there are other freaks that would too... When the world gets that bad, Wikipedia is the least of my concerns, slightly ahead of who is winning American Idol. If it comes to the point the internet goes down for a long period of time, that $300 is better spent on a garden. Just my thoughts. DAve -- Don't tell me I'm driving the cart! ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: priority or order for /usr/local/etc/rc.d scripts?
--On June 30, 2008 4:37:47 PM -0400 fred [EMAIL PROTECTED] wrote: Hi guys, Basically, I have 2 scripts in the folder “/usr/local/etc/rc.d/” Resin.sh and apache.sh I need resin to be started when apache is starting, how can I do that? I can’t find any documentation on priority or order for startup scripts. Rc scripts are started in numeric, then alphabetic order. If you need resin to start before apache, rename it 001.resin.sh. Paul Schmehl If it isn't already obvious, my opinions are my own and not those of my employer.
Re: priority or order for /usr/local/etc/rc.d scripts?
Regarding the order of rc scripts, On Mon, 30 Jun 2008, fred wrote: I need resin to be started when apache is starting, how can I do that? I can?t find any documentation on priority or order for startup scripts. The rcorder(8) page will help you out. Note the PROVIDE and REQUIRE keywords. Andrew. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Gmirror Load vs Round-Robin
Is there a best practice usage for these 2 balance options. In reading the man page, freebsd handbook and various how to's I see no clear usage. Or at least it isnt clear to me. When should you use either one? I am setting up a Raid 1 in FreeBSD 7.0-p2 Release with some SCSI drives. Peter ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: priority or order for /usr/local/etc/rc.d scripts?
On Mon, Jun 30, 2008 at 04:37:47PM -0400, fred wrote: Hi guys, Basically, I have 2 scripts in the folder /usr/local/etc/rc.d/ Resin.sh and apache.sh Are these the scripts provided by the ports? They should be installed without the '.sh' extension. See rc(8). I need resin to be started when apache is starting, how can I do that? I can't find any documentation on priority or order for startup scripts. See the manual pages for rc(8) and rcorder(8). Basically, you need to put a number of special comments in the scripts for the rc system to work with them. For instance, the script for resin (made from /usr/ports/www/resin3/files/resin.sh.in) should be modified like: # REQUIRE: LOGIN apache22 The latter is provided by the startup script installed by apache. This is generated from /usr/ports/www/apache22/files/apache22.sh.in. Both should of course be enabled in /etc/rc.conf: apache22_enable=YES resin_enable=YES Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpt0uwNUZ3VI.pgp Description: PGP signature
Maximum swap size?
Is there a maximum swap size limitation? I'm using a 64-bit arch and only seem to get about 32GB of usable swap out of a 250GB disk (all of /dev/ad6) Thanks, Skye # uname -a FreeBSD XX 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 10:35:36 UTC 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC amd64 # # bsdlabel ad6s1 # /dev/ad6s1: 8 partitions: #size offsetfstype [fsize bsize bps/cpg] b: 4883920020 swap c: 4883920020unused0 0 # raw part, don't edit # # swapctl -hl Device: 1048576-blocks Used: /dev/ad4s1b 4094 0 /dev/ad6s1b32768 0 -- View this message in context: http://www.nabble.com/Maximum-swap-size--tp18204938p18204938.html Sent from the freebsd-questions mailing list archive at Nabble.com. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: 7.0 No Sound: emu10k1
On Mon, 30 Jun 2008 15:28:37 -0400 David Horn [EMAIL PROTECTED] wrote: Thanks for the hint. snd_emu10kx instead of snd_emu10k1 (doh!) I knew it had to be something simple. Everything is working great now. For future reference there's an easy way to find the correct driver. You kldload snd_driver (which loads all sound drivers), start playing some audio, and then kldunload snd_driver. kldstat will then show you the driver that couldn't be unloaded because it's in use. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
[EMAIL PROTECTED] wrote: It's actually been a long, slow, steady degradation of performance as best I can tell, that's recently just reached proportions that are so ridiculous that it's gone from this sucks but I can deal to this is completely unusable. The system has been slow from the start, just not this slow. I guess I'll need to investigate this...and while I know that Python is somewhat off-topic, if anyone here has any suggestions on where to start, they'd be much appreciated. :-) If you want to factor FreeBSD out of the problem, try to do the exact same Plone stuff under a good and easy Linux distro, like Ubuntu, and you will know if the problem is in Plone. In this case you have a workaround using a multiplexer as someone else mentioned, assuming your machine has several cores and a lot of memory. I am not an expert, but i have heard that Java frameworks have much better scalability, partly because threads are handled in a more reasonable way, and also because the JIT is very good. By the way, you can try to run Plone under psyco http://psyco.sourceforge.net/ provided you have a lot of memory. I have seen good improvement for some python programs with psyco. I have found a speed comparison which may enlighten you here: http://www.alrond.com/en/2007/jan/25/performance-test-of-6-leading-frameworks/ It has some remarks at the end which may help for plone. -- Michel TALON ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Maximum swap size?
snott wrote: Is there a maximum swap size limitation? I'm using a 64-bit arch and only seem to get about 32GB of usable swap out of a 250GB disk (all of /dev/ad6) Thanks, Skye # uname -a FreeBSD XX 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 10:35:36 UTC 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC amd64 # # bsdlabel ad6s1 # /dev/ad6s1: 8 partitions: #size offsetfstype [fsize bsize bps/cpg] b: 4883920020 swap c: 4883920020unused0 0 # raw part, don't edit # # swapctl -hl Device: 1048576-blocks Used: /dev/ad4s1b 4094 0 /dev/ad6s1b32768 0 My first question is, why are you partitioning more than 2x your RAM? I highly doubt you have 16GB of RAM. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Maximum swap size?
Trust me, I really do want 250GB (or more) of swap. I'm using swap as a backing store for an HTTP reverse proxy for very large cache sets. Its more efficient to just use the vm layer for LRU object management than to create a huge mmap'd file with file buf caching. Skye Ryan Coleman wrote: snott wrote: Is there a maximum swap size limitation? I'm using a 64-bit arch and only seem to get about 32GB of usable swap out of a 250GB disk (all of /dev/ad6) Thanks, Skye My first question is, why are you partitioning more than 2x your RAM? I highly doubt you have 16GB of RAM. -- View this message in context: http://www.nabble.com/Maximum-swap-size--tp18204938p18205925.html Sent from the freebsd-questions mailing list archive at Nabble.com. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
Quoting Kris Kennaway [EMAIL PROTECTED]: Michel Talon wrote: On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. Yes, it could be that. I don't know off-hand whether multiple threads are counted separately by vmstat (at a guess I'd say no), but ps/top/etc should show how many are active in the python process. Just ran ktrace, and a bit of Googling seems to confirm my initial suspicion that the results I'm seeing are abnormal. The first several screenfulls of output look like this: 52929 python2.4 1214867016.469416 CALL kse_wakeup(0x811740c) 52929 python2.4 0.60 RET kse_wakeup 0 52929 python2.4 0.08 RET kse_release 0 52929 python2.4 0.40 CALL kse_release(0x811df4c) 52929 python2.4 0.000515 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.12 CALL kse_release(0x811df4c) 52929 python2.4 0.000365 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.03 RET kse_release 0 52929 python2.4 0.10 CALL kse_release(0x811df4c) 52929 python2.4 0.000413 CALL kse_wakeup(0x811740c) 52929 python2.4 0.11 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) 52929 python2.4 0.000393 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) I may be mistaken, but it seems like that's a lot of unnecessary activity managing the threads; the confirmation I found came from http://arkiv.freebsd.se/?ml=freebsd-threadsa=2007-02t=3178634. Am I correct that this is abnormal behavior? If so, any idea what I may need to do to fix the issue? Alex ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Maximum swap size?
snott wrote: Trust me, I really do want 250GB (or more) of swap. I'm using swap as a backing store for an HTTP reverse proxy for very large cache sets. Its more efficient to just use the vm layer for LRU object management than to create a huge mmap'd file with file buf caching. I am not certain but I think on 64-bit systems the 32GB limitation is per swap device (on i386 there is a 16GB total limitation because of a 32-bit counter of 512 byte blocks), so you can add multiple swap devices. However if you slice up a disk into many partitions you might lose performance because it will try to round robin between them, assuming they are independent (but they're not; you'll lose I/O throughput from seek delays). It may not be hard to change this behaviour. In general your strategy is a good one but there are other problems; managing that amount of swap will require a lot of auxiliary kernel memory. It is hard to estimate exactly how much for various reasons (it's not entirely deterministic), but in my environment even 20GB of swap requires increasing kern.maxswzone=209715200 i.e. about 200MB of memory just to keep track of the allocated swap. If you don't tune this then you'll run out of swap zone when you allocate beyond a certain point, and the kernel will deadlock. I think the default value allows about 8GB of swap use. Other kernel limits will prevent this from being raised above about 1500MB (although a forthcoming change in 8.0 will bring it up to 4GB). Basically, even though there are valid reasons to want to do what you're doing (and I do it myself on the build cluster that builds the FreeBSD packages), you're operating in a zone that would have been considered complete insanity until recently, and sufficiently few people have wanted to try that no-one has thought about optimizing in this regime. I think it would be quite an interesting project to try, though. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
[EMAIL PROTECTED] wrote: Quoting Kris Kennaway [EMAIL PROTECTED]: Michel Talon wrote: On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. Yes, it could be that. I don't know off-hand whether multiple threads are counted separately by vmstat (at a guess I'd say no), but ps/top/etc should show how many are active in the python process. Just ran ktrace, and a bit of Googling seems to confirm my initial suspicion that the results I'm seeing are abnormal. The first several screenfulls of output look like this: 52929 python2.4 1214867016.469416 CALL kse_wakeup(0x811740c) 52929 python2.4 0.60 RET kse_wakeup 0 52929 python2.4 0.08 RET kse_release 0 52929 python2.4 0.40 CALL kse_release(0x811df4c) 52929 python2.4 0.000515 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.12 CALL kse_release(0x811df4c) 52929 python2.4 0.000365 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.03 RET kse_release 0 52929 python2.4 0.10 CALL kse_release(0x811df4c) 52929 python2.4 0.000413 CALL kse_wakeup(0x811740c) 52929 python2.4 0.11 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) 52929 python2.4 0.000393 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) I may be mistaken, but it seems like that's a lot of unnecessary activity managing the threads; the confirmation I found came from http://arkiv.freebsd.se/?ml=freebsd-threadsa=2007-02t=3178634. Am I correct that this is abnormal behavior? If so, any idea what I may need to do to fix the issue? Looks exactly like the python thread problem Michel described. You will get some improvement by switching to libthr and/or updating to 7.0 as I discussed, but ultimately you're hitting limits of python, not FreeBSD. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching? - FIXED
Quoting Kris Kennaway [EMAIL PROTECTED]: [EMAIL PROTECTED] wrote: Quoting Kris Kennaway [EMAIL PROTECTED]: Michel Talon wrote: On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. Yes, it could be that. I don't know off-hand whether multiple threads are counted separately by vmstat (at a guess I'd say no), but ps/top/etc should show how many are active in the python process. Just ran ktrace, and a bit of Googling seems to confirm my initial suspicion that the results I'm seeing are abnormal. The first several screenfulls of output look like this: 52929 python2.4 1214867016.469416 CALL kse_wakeup(0x811740c) 52929 python2.4 0.60 RET kse_wakeup 0 52929 python2.4 0.08 RET kse_release 0 52929 python2.4 0.40 CALL kse_release(0x811df4c) 52929 python2.4 0.000515 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.12 CALL kse_release(0x811df4c) 52929 python2.4 0.000365 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.03 RET kse_release 0 52929 python2.4 0.10 CALL kse_release(0x811df4c) 52929 python2.4 0.000413 CALL kse_wakeup(0x811740c) 52929 python2.4 0.11 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) 52929 python2.4 0.000393 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) I may be mistaken, but it seems like that's a lot of unnecessary activity managing the threads; the confirmation I found came from http://arkiv.freebsd.se/?ml=freebsd-threadsa=2007-02t=3178634. Am I correct that this is abnormal behavior? If so, any idea what I may need to do to fix the issue? Looks exactly like the python thread problem Michel described. You will get some improvement by switching to libthr and/or updating to 7.0 as I discussed, but ultimately you're hitting limits of python, not FreeBSD. WOW...it's *amazing* how much of a difference a single sysctl can make. I went ahead and set kern.threads.virtual_cpu=1, as suggested in the thread above, and the difference is ridiculous -- Zope is now faster than I've ever seen. More importantly, my ktracing shows that all of the kse_* garabage is now gone. I'll probably be upgrading to 7.0 in the next month or so, given that this is obviously a thread issue and that that release has much improved thread code. However, for the time being, the pressing issue is fixed, and for anyone in my position stuck on 6.2...this is night day. Alex ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: freebsd-update key error
Rudi Kramer - MWEB wrote: Hey Robert, This error indicates that you are having some sort of connection issues, I for instance get it when I forget to use our work proxy, here are some steps you can try to remedy the problem: 1) Can you resolve update1.FreeBSD.org? 2) Can you ping update1.FreeBSD.org? 3) Can you telnet to update1.FreeBSD.org on port 80? That should give you a idea on what the problem is. Hi Rudi! I can say that I'm getting the same issue as Robert, and I can answer to the affirmative to all three of your questions. I'm running: FreeBSD 7.0-STABLE FreeBSD 7.0-STABLE #28: Sun Jun 1 10:35:27 EDT 2008 amd64 Thanks in advance... Best, --Glenn -- ...destination is merely a byproduct of the journey --Eric Hansen ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Configuring an older server for speed...
All, I've got a Compaq ML570 with 2gb RAM, dual PIII Xeon 700s and 5x10k RPM drives in it attached to a Compaq 5300 RAID card that I'm going to be using as a squid box. I've configured two drives as RAID 1 with the third as a hot spare, and two drives as RAID0 - I intend to put the squid cache on the latter, and have mounted it as /squid. I'm running 7STABLE from a couple of days ago. What might I do to achieve better/best performance? I'm replacing a less capable whitebox. One of the big issues I've had has manifested itself recently - we've moved from a T1 to a DS3, and while overall throughput has increased dramatically, people are now complaining that the Internet is slow, which I've found is all down to initial page load. I'm pursuing optimizing squid elsewhere, and want to focus on getting this box as fast as I reasonably can before sticking squid on it. I've got more RAM to put into it - I'd be stealing from another machine that's little used, but I should be able to get it to 4gb RAM. As a benchmark, there are about 230 people in my site who will be using this box for their proxy, and their usage is all over the map - worse, I haven't been given the time to put any analysis tools into play to figure out the load on the old box, as we're in the middle of a number of other projects of equal or higher priority. Kurt ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching? - FIXED
[EMAIL PROTECTED] wrote: Quoting Kris Kennaway [EMAIL PROTECTED]: [EMAIL PROTECTED] wrote: Quoting Kris Kennaway [EMAIL PROTECTED]: Michel Talon wrote: On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. Yes, it could be that. I don't know off-hand whether multiple threads are counted separately by vmstat (at a guess I'd say no), but ps/top/etc should show how many are active in the python process. Just ran ktrace, and a bit of Googling seems to confirm my initial suspicion that the results I'm seeing are abnormal. The first several screenfulls of output look like this: 52929 python2.4 1214867016.469416 CALL kse_wakeup(0x811740c) 52929 python2.4 0.60 RET kse_wakeup 0 52929 python2.4 0.08 RET kse_release 0 52929 python2.4 0.40 CALL kse_release(0x811df4c) 52929 python2.4 0.000515 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.12 CALL kse_release(0x811df4c) 52929 python2.4 0.000365 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.03 RET kse_release 0 52929 python2.4 0.10 CALL kse_release(0x811df4c) 52929 python2.4 0.000413 CALL kse_wakeup(0x811740c) 52929 python2.4 0.11 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) 52929 python2.4 0.000393 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) I may be mistaken, but it seems like that's a lot of unnecessary activity managing the threads; the confirmation I found came from http://arkiv.freebsd.se/?ml=freebsd-threadsa=2007-02t=3178634. Am I correct that this is abnormal behavior? If so, any idea what I may need to do to fix the issue? Looks exactly like the python thread problem Michel described. You will get some improvement by switching to libthr and/or updating to 7.0 as I discussed, but ultimately you're hitting limits of python, not FreeBSD. WOW...it's *amazing* how much of a difference a single sysctl can make. I went ahead and set kern.threads.virtual_cpu=1, as suggested in the thread above, and the difference is ridiculous -- Zope is now faster than I've ever seen. More importantly, my ktracing shows that all of the kse_* garabage is now gone. I'll probably be upgrading to 7.0 in the next month or so, given that this is obviously a thread issue and that that release has much improved thread code. However, for the time being, the pressing issue is fixed, and for anyone in my position stuck on 6.2...this is night day. Seriously, try libthr. No matter what you do to libkse it is going to suck. That's why we removed it. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching? - FIXED
Quoting Kris Kennaway [EMAIL PROTECTED]: [EMAIL PROTECTED] wrote: Quoting Kris Kennaway [EMAIL PROTECTED]: [EMAIL PROTECTED] wrote: Quoting Kris Kennaway [EMAIL PROTECTED]: Michel Talon wrote: On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: Yep, it could be that -- what confuses me though is that it is claimed that performance suddenly regressed. If so then this cannot be the underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. Yes, it could be that. I don't know off-hand whether multiple threads are counted separately by vmstat (at a guess I'd say no), but ps/top/etc should show how many are active in the python process. Just ran ktrace, and a bit of Googling seems to confirm my initial suspicion that the results I'm seeing are abnormal. The first several screenfulls of output look like this: 52929 python2.4 1214867016.469416 CALL kse_wakeup(0x811740c) 52929 python2.4 0.60 RET kse_wakeup 0 52929 python2.4 0.08 RET kse_release 0 52929 python2.4 0.40 CALL kse_release(0x811df4c) 52929 python2.4 0.000515 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.12 CALL kse_release(0x811df4c) 52929 python2.4 0.000365 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.03 RET kse_release 0 52929 python2.4 0.10 CALL kse_release(0x811df4c) 52929 python2.4 0.000413 CALL kse_wakeup(0x811740c) 52929 python2.4 0.11 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) 52929 python2.4 0.000393 CALL kse_wakeup(0x811740c) 52929 python2.4 0.12 RET kse_wakeup 0 52929 python2.4 0.04 RET kse_release 0 52929 python2.4 0.09 CALL kse_release(0x811df4c) I may be mistaken, but it seems like that's a lot of unnecessary activity managing the threads; the confirmation I found came from http://arkiv.freebsd.se/?ml=freebsd-threadsa=2007-02t=3178634. Am I correct that this is abnormal behavior? If so, any idea what I may need to do to fix the issue? Looks exactly like the python thread problem Michel described. You will get some improvement by switching to libthr and/or updating to 7.0 as I discussed, but ultimately you're hitting limits of python, not FreeBSD. WOW...it's *amazing* how much of a difference a single sysctl can make. I went ahead and set kern.threads.virtual_cpu=1, as suggested in the thread above, and the difference is ridiculous -- Zope is now faster than I've ever seen. More importantly, my ktracing shows that all of the kse_* garabage is now gone. I'll probably be upgrading to 7.0 in the next month or so, given that this is obviously a thread issue and that that release has much improved thread code. However, for the time being, the pressing issue is fixed, and for anyone in my position stuck on 6.2...this is night day. Seriously, try libthr. No matter what you do to libkse it is going to suck. That's why we removed it. I will, probably as part of upgrading to 7.0 (which I may accelerate, given this point). I'm just ecstatic at the difference I'm already seeing, and specifically wanted to make note of it in the archives. Point very much taken, though. :-) Alex ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
which font previewer?
A fellow compunerd got tired of being first-hired and first-fired, went back to school in art/computer animation. long-story-story, this guy came up with the right kind of logo for my website; he sent a united t+u that at least *i* liked. Now that I'm learning to use the GIMP --*thanks* to the patient and thouhtful -questions members who have help me with Layers--now i need to find which typeface(s) looks best. i'd be much obliged for the top couple font viewer a apps so i can compare the bunches [scores] of fonts I've collected? gary -- Gary Kline [EMAIL PROTECTED] www.thought.org Public Service Unix http://jottings.thought.org http://transfinite.thought.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching? - FIXED
I will, probably as part of upgrading to 7.0 (which I may accelerate, given this point). I'm just ecstatic at the difference I'm already seeing, and specifically wanted to make note of it in the archives. Point very much taken, though. :-) It's trivial to change to libthr, as pointed out earlier in this thread. You simply add an entry/entries to /etc/libmap.conf (see man libmap.conf for details) and then restart whatever it is that is currently running against libkse. I'll second Kris' recommendation to move to libthr. I saw a drastic improvement in MySQL and ffmpeg performance on 6.2 when I switched from libkse to libthr. Certainly 7.0 would give it to you automatically, but there's no reason not to use libmap to use it now, as an interim solution. Josh ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
Kurt Buff wrote: All, I've got a Compaq ML570 with 2gb RAM, dual PIII Xeon 700s and 5x10k RPM drives in it attached to a Compaq 5300 RAID card that I'm going to be using as a squid box. I've configured two drives as RAID 1 with the third as a hot spare, and two drives as RAID0 - I intend to put the squid cache on the latter, and have mounted it as /squid. I'm running 7STABLE from a couple of days ago. What might I do to achieve better/best performance? I'm replacing a less capable whitebox. One of the big issues I've had has manifested itself recently - we've moved from a T1 to a DS3, and while overall throughput has increased dramatically, people are now complaining that the Internet is slow, which I've found is all down to initial page load. I'm pursuing optimizing squid elsewhere, and want to focus on getting this box as fast as I reasonably can before sticking squid on it. I've got more RAM to put into it - I'd be stealing from another machine that's little used, but I should be able to get it to 4gb RAM. As a benchmark, there are about 230 people in my site who will be using this box for their proxy, and their usage is all over the map - worse, I haven't been given the time to put any analysis tools into play to figure out the load on the old box, as we're in the middle of a number of other projects of equal or higher priority. Kurt I would recommend fBSD 6.3 instead of 7. You don't need it, unless you have a documented reason it has to be 7.0 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
On Mon, 30 Jun 2008 20:39:05 -0500 Ryan Coleman [EMAIL PROTECTED] wrote: I would recommend fBSD 6.3 instead of 7. You don't need it, unless you have a documented reason it has to be 7.0 really?! i thought 7 was supposed to be a big improvement over 6.3: Dramatic improvements in performance and SMP scalability shown by various database and other benchmarks,in some cases showing peak performance improvements as high as 350% over FreeBSD 6.X under normal loads and 1500% at high loads. http://www.freebsd.org/releases/7.0R/announce.html we've had a lot of trouble though installing 7 on some of our older machines (6.3 is easy and worked well too) because the cdrom doesn't always cooperate. but we got it to work with some extra effort, because we thought it would be better. is it possible that the older versions work better on older machines? -- In friendship, prad ... with you on your journey Towards Freedom http://www.towardsfreedom.com (website) Information, Inspiration, Imagination - truly a site for soaring I's ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: second pre-emptive raid: stripes and the os
On Sun, 29 Jun 2008 14:56:57 -0700 prad [EMAIL PROTECTED] wrote: based on the excellent ideas from the first pre-emptive raid thread we have been considering raid1+0 or raid5 for our server our server just arrived today!! and there was an unexpected surprise in it - a raid card mylex extreme raid2000 which worked right away. does anyone know about the quality of this card? so we will be using that instead of software raid, though i still would like to know how you setup a stripe and keep the os on it. -- In friendship, prad ... with you on your journey Towards Freedom http://www.towardsfreedom.com (website) Information, Inspiration, Imagination - truly a site for soaring I's ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
searching freebsd-questions Archives
i've gone to freebsd-questions Archives: http://lists.freebsd.org/pipermail/freebsd-questions/ and tried typing all sorts of things in the search box and playing with the other fields (eg all and any, but i always get No matches were found for '...' how is one supposed to use the search in the archives? -- In friendship, prad ... with you on your journey Towards Freedom http://www.towardsfreedom.com (website) Information, Inspiration, Imagination - truly a site for soaring I's ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Fatal Trap 12 Page Fault while in Kernel Moder
Hi I am using Free BSD 6.3 and am intergating Monowal and FreeRadius When i make the image i get this error Fatal Trap 12 :page fault while in kernel mode Fault virtual addres 0xbffle000 fault code -= supervisor write, page not present instruction pointer = 0*28 = trap number 12 panic = page fault Pls can some one help me on this _ NEW! Get Windows Live FREE. http://www.get.live.com/wl/all___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Making changes to ports default install
Hi everyone, I've been working on a new server, and I'd like to install apache from ports to make maintenance easier. The problem is the default layout drives me nuts. I'd like to use a more intuitive layout. Is it possible to pass a custom layout file during make build? Something like make build WITH_LAYOUT=/path/to/layout/file or something along those lines? If it makes any difference, I also need to install PHP and MySQL along with apache. I don't know if using a different layout file would cause issues with either of those. Anyone have any advice on that? Thanks all :) Tim -- Ronald Reagan - Recession is when a neighbor loses his job. Depression is when you lose yours. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
There are improvements in the wireless system and in locking. One of the most interesting is the possibility of using zfs and dtrace from Solaris. Many of these features have undiscovered bugs that you might prefer not discovering on your own server. For desktop and laptop use I would certainly have no issues with using 7.0. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
On Mon, 30 Jun 2008 23:17:05 -0400 David Gurvich [EMAIL PROTECTED] wrote: Many of these features have undiscovered bugs that you might prefer not discovering on your own server. oh oh. but what if we are just running a plain webserver (mainly static html) and email. we are sticking to ufs of course. it is an older machine - dual 1.3G with 2G ram and a raid card. we've run 7 since the beginning of june on 2 desktops (700Hz with 192M and 128M ram) doing the above serving without any problems and are just about to set up this server to replace the other 2. should we use 7 or think about going with 6.3? -- In friendship, prad ... with you on your journey Towards Freedom http://www.towardsfreedom.com (website) Information, Inspiration, Imagination - truly a site for soaring I's ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
On Mon, Jun 30, 2008 at 6:39 PM, Ryan Coleman [EMAIL PROTECTED] wrote: Kurt Buff wrote: All, I've got a Compaq ML570 with 2gb RAM, dual PIII Xeon 700s and 5x10k RPM drives in it attached to a Compaq 5300 RAID card that I'm going to be using as a squid box. I've configured two drives as RAID 1 with the third as a hot spare, and two drives as RAID0 - I intend to put the squid cache on the latter, and have mounted it as /squid. I'm running 7STABLE from a couple of days ago. What might I do to achieve better/best performance? I'm replacing a less capable whitebox. One of the big issues I've had has manifested itself recently - we've moved from a T1 to a DS3, and while overall throughput has increased dramatically, people are now complaining that the Internet is slow, which I've found is all down to initial page load. I'm pursuing optimizing squid elsewhere, and want to focus on getting this box as fast as I reasonably can before sticking squid on it. I've got more RAM to put into it - I'd be stealing from another machine that's little used, but I should be able to get it to 4gb RAM. As a benchmark, there are about 230 people in my site who will be using this box for their proxy, and their usage is all over the map - worse, I haven't been given the time to put any analysis tools into play to figure out the load on the old box, as we're in the middle of a number of other projects of equal or higher priority. Kurt I would recommend fBSD 6.3 instead of 7. You don't need it, unless you have a documented reason it has to be 7.0 Why not? It installed really well, and I've had no issues with it on other machines. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Making changes to ports default install
Tim DeBoer [EMAIL PROTECTED] wrote: I've been working on a new server, and I'd like to install apache from ports to make maintenance easier. The problem is the default layout drives me nuts. I'd like to use a more intuitive layout. Is it possible to pass a custom layout file during make build? Something like make build WITH_LAYOUT=/path/to/layout/file or something along those lines? Look into --enable-layout. See the various options in config.layout; if none of them suit you, you can add your custom rules. I believe you can also point to a file that contains your custom layout if you are uncomfortable editing the config.layout. [...] -- Sahil Tandon [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
Ryan Coleman [EMAIL PROTECTED] wrote: Kurt Buff wrote: [...] I would recommend fBSD 6.3 instead of 7. You don't need it, unless you have a documented reason it has to be 7.0 Please qualify that recommendation; as it stands, it is pure FUD. -- Sahil Tandon [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Configuring an older server for speed...
Sahil Tandon wrote: Ryan Coleman [EMAIL PROTECTED] wrote: Kurt Buff wrote: [...] I would recommend fBSD 6.3 instead of 7. You don't need it, unless you have a documented reason it has to be 7.0 Please qualify that recommendation; as it stands, it is pure FUD. I don't see the need. And I couldn't get 7 to install on my brand new machine. Once I got the 6.3 amd64 build it went in without an issue. I don't see the reason to run the latest and greatest for a file/web server. Desktops are one thing, but you can get more out of your CPU and RAM with less clutter out of the box. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OT: anyone been crazy enough to mirror wikipedia?
On Mon, Jun 30, 2008 at 05:15:39PM -0400, DAve wrote: Steve Franks wrote: So call me a sociopath, but times are a bit scary. I'd like to do the 2000's equivalent of the 1960's bomb shelter, and have my very own snapshot in case of major local/regional internet disruption, etc. What would be the best way to go about this. I see with 1T words, it appears doable on current technology. Maybe they should offer a snapshot on DVDs or disk as a fundraiser? I'd drop $300 for some sort of officially licenced copy, I suspect there are other freaks that would too... When the world gets that bad, Wikipedia is the least of my concerns, slightly ahead of who is winning American Idol. If it comes to the point the internet goes down for a long period of time, that $300 is better spent on a garden. Just my thoughts. Actually . . . if things get that bad, you're going to need some firepower to protect your garden (and everything else you don't want taken from you by force). To properly protect a garden, you'd need to make it a community farm, with community members who have and will use firearms to protect it (and your Wikipedia mirror). Of course, I greatly admire the impulse to protect the collected knowledge of Wikipedia from disaster. It's also practical -- because it contains a lot of information that might be of use (including good subsistence gardening information, for those of us who don't have naturally green thumbs). Them's are just *my* thoughts. -- Chad Perrin [ content licensed PDL: http://pdl.apotheon.org ] Larry Wall: Perl is, in intent, a cleaned up and summarized version of that wonderful semi-natural language known as 'Unix'. pgpwbxt7qg8xl.pgp Description: PGP signature
Re: Configuring an older server for speed...
prad wrote: On Mon, 30 Jun 2008 23:17:05 -0400 David Gurvich [EMAIL PROTECTED] wrote: Many of these features have undiscovered bugs that you might prefer not discovering on your own server. oh oh. but what if we are just running a plain webserver (mainly static html) and email. we are sticking to ufs of course. it is an older machine - dual 1.3G with 2G ram and a raid card. we've run 7 since the beginning of june on 2 desktops (700Hz with 192M and 128M ram) doing the above serving without any problems and are just about to set up this server to replace the other 2. should we use 7 or think about going with 6.3? I'd go with 7.x every time. It wipes the floor with 6.3 performance-wise and it is just as stable and bug-free as you'ld expect from FreeBSD. You've seen it works for you: there's no conceivable reason to downgrade. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW signature.asc Description: OpenPGP digital signature
Is it reliable to increase the MAXCPU in param.h ?
Server: HP DL785G5 with 8 CPU ( 32 cores ) , 16G RAM OS: FreeBSD 7.0-amd64 Kernel 1: MAXCPU = 16 ( default ) Kernel 2: MAXCPU = 32 DL785G5 run with kernel 1 and kernel 2 both successfully, and the FreeBSD can detect the 16 CPUs and 32 CPUs normally ( using top -S command). If I use kernel 2 for postgresql 8.3, is it reliable and stable? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Using freebsd-update after upgrading from source
Manolis Kiagias wrote: I have been updating 6.2-RELEASE with freebsd-update. Recently I upgraded it to RELENG_6_3 from source. Can I continue using freebsd-update or must I upgrade only from source from now on? I don't see why not. I was wondering if freebsd-update will break if my binaries happen to be different from those in the official release. freebsd-update will download binary updates to the system as well as the relevant sources for them (look at /etc/freebsd-update.conf to verify). I don't update sources with freebsd-update. I mount them from an NFS server running cvsup. I conducted an experiment and got inconclusive results. I had upgraded to RELENG_6_3-p2 where the problems with libpthread and ssh are already fixed. However, when I ran freebsd-update, it did replace libpthread and libssh. It also replaced the kernel, downgrading it from 6.3-RELEASE-p2 to 6.3-RELEASE-p1! Don't be so sure. If you are running a GENERIC kernel, freebsd-update simply downloaded the latest. If -p2 did not have any kernel updates (it did not IIRC) you got the kernel for -p1. The fact it replaced your GENERIC (which had a -p2 deisgnation in uname) is probably because this was compiled on your system so freebsd-update did not recognize the version. These two should be functionally identical. In fact if you just recompile the kernel now, it will report -p2 If i recompile GENERIC now, freebsd-update will suggest updating it again and again P.S. I know that freebsd-update will leave the kernel alone if uname -i is not GENERIC|SMP, but my question is more generic. How well can freebsd-update handle a system compiled from source? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:[EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Using freebsd-update after upgrading from source
Colleagues, I have been updating 6.2-RELEASE with freebsd-update. Recently I upgraded it to RELENG_6_3 from source. Can I continue using freebsd-update or must I upgrade only from source from now on? I conducted an experiment and got inconclusive results. I had upgraded to RELENG_6_3-p2 where the problems with libpthread and ssh are already fixed. However, when I ran freebsd-update, it did replace libpthread and libssh. It also replaced the kernel, downgrading it from 6.3-RELEASE-p2 to 6.3-RELEASE-p1! Does it mean that freebsd-update is not recommended after upgrade from source? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:[EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
keymapping - numlock doesn't work anymore
FreeBSD 7.0-RELEASE (qemu host) X.Org X Server 1.4.2 HP Compaq nc8430 laptop Hi, recently I performed a portupgrade (-R xorg-server) and now my numlock doesn't work anymore under Xorg. Since I was having problems with my key-mapping in Qemu (key 1 and 4 did not work), I used the numlock to boot my FreeBSD guest in single user mode. In the CTRL+ALT+F1 session (not sure who you call this non-X tty session), the num_lock works fine. I've looked at the xev and from what I see this confirms that my num_lock is not working. REGULAR j + KeyPress event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15118461, (-133,-349), root:(966,270), state 0x0, keycode 44 (keysym 0x6a, j), same_screen YES, XLookupString gives 1 bytes: (6a) j XmbLookupString gives 1 bytes: (6a) j XFilterEvent returns: False KeyRelease event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15118511, (-133,-349), root:(966,270), state 0x0, keycode 44 (keysym 0x6a, j), same_screen YES, XLookupString gives 1 bytes: (6a) j XFilterEvent returns: False LEFT SHIFT + CAPITAL J KeyPress event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15120328, (-133,-349), root:(966,270), state 0x0, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyPress event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15120628, (-133,-349), root:(966,270), state 0x1, keycode 44 (keysym 0x4a, J), same_screen YES, XLookupString gives 1 bytes: (4a) J XmbLookupString gives 1 bytes: (4a) J XFilterEvent returns: False KeyRelease event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15120689, (-133,-349), root:(966,270), state 0x1, keycode 44 (keysym 0x4a, J), same_screen YES, XLookupString gives 1 bytes: (4a) J XFilterEvent returns: False KeyRelease event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15120980, (-133,-349), root:(966,270), state 0x1, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False NUM LOCK followed by j ++ KeyPress event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15135961, (-133,-349), root:(966,270), state 0x0, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyRelease event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15136005, (-133,-349), root:(966,270), state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False KeyPress event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15138611, (-133,-349), root:(966,270), state 0x10, keycode 44 (keysym 0x6a, j), same_screen YES, XLookupString gives 1 bytes: (6a) j XmbLookupString gives 1 bytes: (6a) j XFilterEvent returns: False KeyRelease event, serial 32, synthetic NO, window 0x321, root 0x4c, subw 0x0, time 15138662, (-133,-349), root:(966,270), state 0x10, keycode 44 (keysym 0x6a, j), same_screen YES, XLookupString gives 1 bytes: (6a) j XFilterEvent returns: False What can I do to solve this? Thanks, Alain ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Problem With ZFS script
Vince Hoffman wrote:
--
#!/bin/sh -
TEXT=$(kldstat | tr a-f A-F | \
awk 'BEGIN {print ibase=16}; NR 1 {print $4}'\
| bc | awk '{a+=$1}; END {print a}')
DATA=$(vmstat -m | sed 's/K//' | awk '{a+=$3}; END {print a*1024}')
TOTAL=$(echo $DATA $TEXT | awk '{print $1+$2}')
echo TEXT=$TEXT, $(echo $TEXT | awk '{print $1/1048576 MB}')
echo DATA=$DATA, $(echo $DATA | awk '{print $1/1048576 MB}')
echo TOTAL=$TOTAL, $(echo $TOTAL | awk '{print $1/1048576 MB}')
--
Looks like the wiki stripped some formatting.
I still don't know that this is doing anything meaningful in the context
of ZFS memory use.
Kris
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Re: Too Much Context Switching?
[EMAIL PROTECTED] wrote: I'm the webmaster for www.marssociety.org, which is a FreeBSD 6.2-RELEASE box running on a dual-core AMD Opteron setup with 4GB of RAM. The box is reasonably busy, as it's the sole piece of hardware running web, database, and mail operations for the Mars Society, an international nonprofit group dedicated to space exploration. We regularly send out newsletters to ~10,000 members, and our web site is averaging ~50,000-100,000 hits/day. The main portion of the web site is run via the Zope/Plone CMS system (Plone 2.5, for anyone who may care). Recently, it's been slowing down dramatically, and our Plone guy (not me -- I inherited the system and can't stand it) can't figure out why. I've been diving into OS-related issues, and in so doing, I ran across what appears to be a very high number of context switches going on. Here's some sample output from vmstat 2: A few hundred or thousand context switches per second is trivial load. That is not your problem. Modern CPUs can do hundreds of thousands per second before it starts to become a problem. Note that your system is 50% idle and spending almost no time in the kernel. This basically means that only one core is doing work, which might be because you're not giving it enough work to do. There are only 1-2 running tasks for most of your trace, one of which is probably vmstat itself, so that means there is only one running server process (which can obviously only saturate at most 1 CPU). The trace suggests that your performance problems are either in userland, or elsewhere in your network or application stack, possibly due to interactions between components. Try to look at why the system is not being given enough work to keep it saturated. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: XScreensaver issue
On Sun, Jun 29, 2008 at 04:04:36PM -0400, Matthew Donovan wrote: Hi, I'm getting since my last update an error message in xscreensaver: glslideshow: couldn't create GL context Actually I'm not able to use any OpenGL screensaver anymore. OpenGL is running fine, I'm using composite options and gears program run at 400 FPS. Load GLX is activated in xorg.conf, that's why I don't understand. snipped the email since it was a bit long but with the nvidia binary driver you do not have to load glx since the nvidia binary has it's own glx setup. which you seem to be using nvidia binary driver. In addition to Matthew's suggestion, you might do well to force a reinstall of the nvidia-driver port, to ensure that its own GL libs are available, instead of any installed by other ports. Note also that if you update your system, you should reinstall the port, as it needs to be compiled against the source for the running kernel. Not recompiling it in the event you carry out a buildworld/ buildkernel cycle, etc, will likely lead to strange failures of the driver. Dan -- Daniel Bye _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgp2QEN8dTcUe.pgp Description: PGP signature
Re: rc scripts
On Fri, Jun 27, 2008 at 3:01 PM, Derek Ragona [EMAIL PROTECTED] wrote: At 04:11 PM 6/27/2008, David Allen wrote: I need to an '-s' flag to the execution of openntpd's rc script: The problems I'm having are multiple. First, the program doesn't offer any logging, and running it with the do not daemonize switch with # /usr/local/sbin/ntpd -d 21 logfile yields no output. Add: set -x at the top of the script and run the output to a file as you were doing. I would add a path to the logfile though and don't worry about the daemon like: /usr/local/sbin/ntpd start 21 /tmp/logfile Then you can kill it off and see what the startup looked like in the logfile. Using set -x didn't occur to me, but from a brief look at the output, it seemed to pick up (which, I guess, it shouldn't) my openntpd_flags=-s in /etc/rc.conf. But even then, the logfile was populated with nothing more than Starting openntpd, so I'm back to where I started. I guess I'll be filing this in my WTF notes, and call it a day. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Problem With ZFS script
Kris Kennaway wrote:
Vince Hoffman wrote:
--
#!/bin/sh -
TEXT=$(kldstat | tr a-f A-F | \
awk 'BEGIN {print ibase=16}; NR 1 {print $4}'\
| bc | awk '{a+=$1}; END {print a}')
DATA=$(vmstat -m | sed 's/K//' | awk '{a+=$3}; END {print a*1024}')
TOTAL=$(echo $DATA $TEXT | awk '{print $1+$2}')
echo TEXT=$TEXT, $(echo $TEXT | awk '{print $1/1048576 MB}')
echo DATA=$DATA, $(echo $DATA | awk '{print $1/1048576 MB}')
echo TOTAL=$TOTAL, $(echo $TOTAL | awk '{print $1/1048576 MB}')
--
Looks like the wiki stripped some formatting.
I still don't know that this is doing anything meaningful in the context
of ZFS memory use.
I understood it to just be showing a summary of kernel memory
utilization, no specific zfs stuff (which I guess could be got from
vmstat -z although I dont understand those statistics well enough to do
this myself.) Semi useful in a peripheral way maybe.
Vince
Kris
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7.0-release f77
Hello, just finished installing and upgrading to 7.0-RELEASE-p2 on one of my server systems .. now f77 doesn't seem to exist within the base system anymore, and installing from /usr/ports/lang/f77 doesn't help: f77 sample.f Error on line 0: Invalid flag '-o' gcc: /var/tmp/f772ImD.c: No such file or directory gcc: No input files specified gcc: /var/tmp/f772ImD.o: No such file or directory Ideas? Thanks for any suggestion and best regards Konrad Heuer GWDG, Am Fassberg, 37077 Goettingen, Germany, [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: rc scripts
On 6/27/08, Paul Schmehl [EMAIL PROTECTED] wrote:
--On Friday, June 27, 2008 14:11:55 -0700 David Allen
[EMAIL PROTECTED] wrote:
I need to an '-s' flag to the execution of openntpd's rc script:
# PROVIDE: openntpd
# REQUIRE: DAEMON
# BEFORE: LOGIN
# KEYWORD: nojail
. /etc/rc.subr
name=openntpd
rcvar=`set_rcvar`
command=/usr/local/sbin/ntpd
required_files=/usr/local/etc/ntpd.conf
openntpd_enable=${openntpd_enable:-NO}
load_rc_config $name
run_rc_command $1
The problems I'm having are multiple. First, the program doesn't offer
any logging, and running it with the do not daemonize switch with
# /usr/local/sbin/ntpd -d 21 logfile
yields no output.
Then, I'm not sure I understand everything I'm reading in rc.subr(8), but
from trial error, I've discovered that modifying the script's command
variable doesn't work, nor does adding the usual scriptname_flags
directive to /etc/rc.conf.
Scriptname_flags doesn't work because the port maintainer didn't write the
startup script so that it parses rc.conf for variables. You can edit the
script like this:
command_args=-s
When rc.subr runs scripts, it runs them like this:
${command} ${command_args} ${command_flags}
Or you can add this to the startup script and then use flags in rc.conf:
load_rc_config openntpd
openntpd_flags=${openntpd_flags:-}
(In that order.)
Then place openntpd_flags=-s in rc.conf.
Just remember that every time the port is updated, your changes will be
overwritten, so you'll need to make a backup or leave a note to yourself
somewhere so you remember to alter the new script.
Thanks for that explanation.
I've since discovered that the sync on start doesn't really work (at
least in the same time frame that ntpd does) anyway, so I'll have to
resort to running 'ntpd -gq' at system startup, and then run OpenBSD's
ntpd daemon after the fact.
At least I've something about the rc system.
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filesystem information
I have a computer that is in a situation where it is losing power occasionally. All but one of the filesystems are going along fine. Once file system seems to lose data on a power outage. Even if it only reads a file, and doesn't write it, it may still lose a file (ex, about half the audio files on my xmms playlist, a couple data files in my wine directory that, to my knowledge, are unlikely to be written after they are first installed). What I'd like to do is get an output of the flags and options on my filesystems to see what is different between that filesystem and the others. Any suggestion on how to do that? This particular FS has lasted through several rebuilds since it doesn't hold OS critical stuff, just data files. Also, to fix the problem, I have to delete the problematic files, and then copy them over from backup or another computer. If I simply copy them, for some reason the problem persists. I don't think it's a bad disk, because all of the filesystems are on the same disk, and this is the only one acting strange. Any suggestions? Thanks, -Jim Stapleton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: 7.0-release f77
On Monday 30 June 2008, Konrad Heuer said: Hello, just finished installing and upgrading to 7.0-RELEASE-p2 on one of my server systems .. now f77 doesn't seem to exist within the base system anymore, and installing from /usr/ports/lang/f77 doesn't help: f77 sample.f Error on line 0: Invalid flag '-o' gcc: /var/tmp/f772ImD.c: No such file or directory gcc: No input files specified gcc: /var/tmp/f772ImD.o: No such file or directory Ideas? Thanks for any suggestion and best regards Konrad Heuer GWDG, Am Fassberg, 37077 Goettingen, Germany, [EMAIL PROTECTED] That was dropped from the base some time ago when they switched to gcc42. The powers that be decided there weren't enough fortran users to justify keeping it in. What you need to do is to install lang/gcc42 from the ports. That will install the full version including fortran. Beech -- --- Beech Rintoul - FreeBSD Developer - [EMAIL PROTECTED] /\ ASCII Ribbon Campaign | FreeBSD Since 4.x \ / - NO HTML/RTF in e-mail | http://www.freebsd.org X - NO Word docs in e-mail | Latest Release: / \ - http://www.FreeBSD.org/releases/7.0R/announce.html --- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: filesystem information
In response to Jim [EMAIL PROTECTED]: I have a computer that is in a situation where it is losing power occasionally. All but one of the filesystems are going along fine. Once file system seems to lose data on a power outage. Even if it only reads a file, and doesn't write it, it may still lose a file (ex, about half the audio files on my xmms playlist, a couple data files in my wine directory that, to my knowledge, are unlikely to be written after they are first installed). What I'd like to do is get an output of the flags and options on my filesystems to see what is different between that filesystem and the others. Any suggestion on how to do that? This particular FS has lasted through several rebuilds since it doesn't hold OS critical stuff, just data files. tunefs -p and/or dumpfs -m Any suggestions? Sounds like you're on the right track with hunting this down. Perhaps turn softupdates off and mount the filesystem sync if you're seeing lots of power outages. -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sysctl enabled but HAL non-existant
Desmond Chapman wrote: The media shows up in konqueror as a normal user but I cannot mount it. there is no reference to hal with an apropos search except for ath_hal. What am I doing wrong? What else do I add to make the cd easily mountable? _ The i’m Talkathon starts 6/24/08. For now, give amongst yourselves. http://www.imtalkathon.com?source=TXT_EML_WLH_LearnMore_GiveAmongst___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] Perhaps you're looking for /usr/ports/sysutils/hal. HAL is not part of the FreeBSD base system. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Problem With ZFS script
Vince Hoffman wrote:
Kris Kennaway wrote:
Vince Hoffman wrote:
--
#!/bin/sh -
TEXT=$(kldstat | tr a-f A-F | \
awk 'BEGIN {print ibase=16}; NR 1 {print $4}'\
| bc | awk '{a+=$1}; END {print a}')
DATA=$(vmstat -m | sed 's/K//' | awk '{a+=$3}; END {print a*1024}')
TOTAL=$(echo $DATA $TEXT | awk '{print $1+$2}')
echo TEXT=$TEXT, $(echo $TEXT | awk '{print $1/1048576 MB}')
echo DATA=$DATA, $(echo $DATA | awk '{print $1/1048576 MB}')
echo TOTAL=$TOTAL, $(echo $TOTAL | awk '{print $1/1048576 MB}')
--
Looks like the wiki stripped some formatting.
I still don't know that this is doing anything meaningful in the context
of ZFS memory use.
I understood it to just be showing a summary of kernel memory
utilization, no specific zfs stuff (which I guess could be got from
vmstat -z although I dont understand those statistics well enough to do
this myself.) Semi useful in a peripheral way maybe.
That is surely the intention, but I am not convinced it is doing what it
says on the box :)
Kris
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Re: Using freebsd-update after upgrading from source
Victor Sudakov wrote: Colleagues, I have been updating 6.2-RELEASE with freebsd-update. Recently I upgraded it to RELENG_6_3 from source. Can I continue using freebsd-update or must I upgrade only from source from now on? I don't see why not. freebsd-update will download binary updates to the system as well as the relevant sources for them (look at /etc/freebsd-update.conf to verify). I conducted an experiment and got inconclusive results. I had upgraded to RELENG_6_3-p2 where the problems with libpthread and ssh are already fixed. However, when I ran freebsd-update, it did replace libpthread and libssh. It also replaced the kernel, downgrading it from 6.3-RELEASE-p2 to 6.3-RELEASE-p1! Don't be so sure. If you are running a GENERIC kernel, freebsd-update simply downloaded the latest. If -p2 did not have any kernel updates (it did not IIRC) you got the kernel for -p1. The fact it replaced your GENERIC (which had a -p2 deisgnation in uname) is probably because this was compiled on your system so freebsd-update did not recognize the version. These two should be functionally identical. In fact if you just recompile the kernel now, it will report -p2 (but this is only a cosmetic change, if the kernel sources have not been changed by freebsd-update). Have a look at this file: /usr/src/sys/conf/newvers.sh look at the BRANCH if it says RELEASE-p2 this is what you will get if you recompile the kernel. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
freebsd-update and more information
Dear all, I read man freebsd-update but it has not answered my questions. That is, after I have issued freebsd-update fetch/install, where can I find information about if the installed updates require recompiling the kernel or system restart? Thank you in advance! -- Zbigniew Szalbot www.LCWords.com smime.p7s Description: S/MIME Cryptographic Signature
Re: freebsd-update and more information
Zbigniew Szalbot wrote: Dear all, I read man freebsd-update but it has not answered my questions. That is, after I have issued freebsd-update fetch/install, where can I find information about if the installed updates require recompiling the kernel or system restart? Thank you in advance! Not all updates include kernel updates, some are just userland. If you are running a GENERIC, unomdified (from CD) kernel, this will be updated in the process. freebsd-update shows you a list of updated files, and will also show /boot/kernel/kernel if this is updated. You will also see source files in /usr/src/sys being updated on a kernel update. Since I always run custom kernels, I just watch for changes in /usr/src/sys. If there are updates there and you are running a custom kernel, you will have to recompile it. Otherwise you don't have to. The uname -a command will still report a previous -pversion until you recompile though. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: debug.cpufreq.lowest doesn't work?
2008/6/29 Patrick Lamaizière [EMAIL PROTECTED]: Le Sun, 29 Jun 2008 12:42:33 +0100, Kemian Dang [EMAIL PROTECTED] a écrit : Hi all, Hi, I set sysctl debug.cpufreq.lowest=800 but sysctl -a still told me that the CPU freq is at 300, though it will jump high if I am doing some heavy work. This reduce of performance makes me even have trouble on browsing website. Did I miss something important? Just to be sure... This sysctl prevents cpufreq to decrease the frequency but if the frequency is lower than the sysctl, the frequency is not increased. Regards. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] Thank you Ghirai and Patrick, that really helps. I set a higher number to the current frequency. -- Best wishes, Kemian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: freebsd-update and more information
Hello again, Not all updates include kernel updates, some are just userland. If you are running a GENERIC, unomdified (from CD) kernel, this will be updated in the process. freebsd-update shows you a list of updated files, and will also show /boot/kernel/kernel if this is updated. You will also see source files in /usr/src/sys being updated on a kernel update. Since I always run custom kernels, I just watch for changes in /usr/src/sys. If there are updates there and you are running a custom kernel, you will have to recompile it. Otherwise you don't have to. The uname -a command will still report a previous -pversion until you recompile though. Thanks! How do you go from there? I assume it is not necessary to download sources since they have already been fetched by freebsd-update. I also run a custom kernel and I see modification date change in /usr/src/sys/netinet so that's likely to mean I need to recompile the kernel. Thank you again! -- Zbigniew Szalbot www.LCWords.com smime.p7s Description: S/MIME Cryptographic Signature
Re: freebsd-update and more information
Zbigniew Szalbot wrote: Hello again, Not all updates include kernel updates, some are just userland. If you are running a GENERIC, unomdified (from CD) kernel, this will be updated in the process. freebsd-update shows you a list of updated files, and will also show /boot/kernel/kernel if this is updated. You will also see source files in /usr/src/sys being updated on a kernel update. Since I always run custom kernels, I just watch for changes in /usr/src/sys. If there are updates there and you are running a custom kernel, you will have to recompile it. Otherwise you don't have to. The uname -a command will still report a previous -pversion until you recompile though. Thanks! How do you go from there? I assume it is not necessary to download sources since they have already been fetched by freebsd-update. Just guessing you updated to 7.0-RELEASE-p2? This actually has kernel updates in the TCP/IP code. True, you don't have to download sources, you already got them. I also run a custom kernel and I see modification date change in /usr/src/sys/netinet so that's likely to mean I need to recompile the kernel. Thank you again! Yes, you simply repeat your last kernel build/install/reboot procedure, i.e. something like: cd /usr/src make buildkernel installkernel KERNCONF=YOURKERNELNAME reboot and you are set! ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: freebsd-update and more information
freebsd-update only updates the installed sources, not all sources. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
calcru: runtime went backwards errors
I've been seeing errors like the following appearing: Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 261 usec to 258 usec for pid 516 (devd) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 4976 usec to 4926 usec for pid 367 (pflogd) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 588 usec to 582 usec for pid 133 (adjkerntz) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 681 usec to 674 usec for pid 20 (swi6: task queue) Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 486 usec to 481 usec for pid 0 (swapper) and narrowed down the cause to openntpd. Do these errors fall into the Mostly Harmless category? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: freebsd-update and more information
--On June 30, 2008 2:22:41 PM +0200 Zbigniew Szalbot [EMAIL PROTECTED] wrote: Dear all, I read man freebsd-update but it has not answered my questions. That is, after I have issued freebsd-update fetch/install, where can I find information about if the installed updates require recompiling the kernel or system restart? Thank you in advance! Maybe I'm confused, but I thought freebsd-update installed precompiled binaries of the generic kernel and world. Therefore, you would need to reboot if the kernel changed. Freebsd-update should tell you what will be changed after it finishes the fetch. I don't recall if it also tells you what it installed. Paul Schmehl If it isn't already obvious, my opinions are my own and not those of my employer.
Re: freebsd-update and more information
Paul Schmehl wrote: --On June 30, 2008 2:22:41 PM +0200 Zbigniew Szalbot [EMAIL PROTECTED] wrote: Dear all, I read man freebsd-update but it has not answered my questions. That is, after I have issued freebsd-update fetch/install, where can I find information about if the installed updates require recompiling the kernel or system restart? Thank you in advance! Maybe I'm confused, but I thought freebsd-update installed precompiled binaries of the generic kernel and world. True, but it also updates the relevant sources if installed (as another poster said, freebsd-update will only update what you have installed - I tend to always assume that everybody installs full sources, but that's just me) Therefore, you would need to reboot if the kernel changed. Freebsd-update should tell you what will be changed after it finishes the fetch. I don't recall if it also tells you what it installed. If it tells you it updated /boot/kernel/kernel, you should reboot. If you are running a custom kernel and you see files getting updated in /usr/src/sys (mind you, not just the /usr/src/sys/conf/newvers.sh, but other files too - newvers.sh is always updated to reflect the new -p# in uname, if you rebuild your kernel) you should rebuild your custom kernel and reboot. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Change in /etc/rc.conf:ipv6_defaultrouter
On Sunday 29 June 2008, Ashish Shukla आशीष शुक्ल wrote: I think how without specifying zone index[1] in link-local address worked, it is probably due to availability of only single inet6 interface except lo0. The physical and virtual interfaces on the system are exactly as before. I'm guessing that my setup worked as a side effect of a now-fixed bug, probably the same one that was preventing me from using the 2001: defaultrouter when I first got the system up and running. Just wanted to confirm, is following command worked ? if possible paste the output: % ping6 fe80::213:10ff:fe79:137a $ ping6 fe80::213:10ff:fe79:137a ping6: UDP connect: Network is unreachable This is after rebooting with ipv6_defaultrouter=2001:470:a80a:1::1. -- Kirk Strauser signature.asc Description: This is a digitally signed message part.
Re: calcru: runtime went backwards errors
On 6/30/08, David Allen [EMAIL PROTECTED] wrote: I've been seeing errors like the following appearing: Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 261 usec to 258 usec for pid 516 (devd) [...] Jun 30 03:13:57 ford kernel: calcru: runtime went backwards from 486 usec to 481 usec for pid 0 (swapper) and narrowed down the cause to openntpd. Do these errors fall into the Mostly Harmless category? It's probably just an annoyance, unless it is happening so often it causes other problems. The FreeBSD FAQ used to have a nice explanation of this, but it has been replaced by a discussion that simply assumes the problem is caused by the Intel SpeedStep implementation on your motherboard: http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/troubleshoot.html#Q5.24. But in general, this error can be caused by several things, including a device that is slow to respond to interrupts. One thing that often helps on SMP systems is to make sure your timecounter isn't using TSC: $ sysctl kern.timecounter kern.timecounter.tick: 1 kern.timecounter.choice: TSC(-100) HPET(900) ACPI-fast(1000) i8254(0) dummy(-100) kern.timecounter.hardware: ACPI-fast [...] - Bob ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Too Much Context Switching?
First off, thanks for such a prompt response. :-) [EMAIL PROTECTED] wrote: I'm the webmaster for www.marssociety.org, which is a FreeBSD 6.2-RELEASE box running on a dual-core AMD Opteron setup with 4GB of RAM. The box is reasonably busy, as it's the sole piece of hardware running web, database, and mail operations for the Mars Society, an international nonprofit group dedicated to space exploration. We regularly send out newsletters to ~10,000 members, and our web site is averaging ~50,000-100,000 hits/day. The main portion of the web site is run via the Zope/Plone CMS system (Plone 2.5, for anyone who may care). Recently, it's been slowing down dramatically, and our Plone guy (not me -- I inherited the system and can't stand it) can't figure out why. I've been diving into OS-related issues, and in so doing, I ran across what appears to be a very high number of context switches going on. Here's some sample output from vmstat 2: A few hundred or thousand context switches per second is trivial load. That is not your problem. Modern CPUs can do hundreds of thousands per second before it starts to become a problem. OK, well that's good to know. Note that your system is 50% idle and spending almost no time in the kernel. This basically means that only one core is doing work, which might be because you're not giving it enough work to do. There are only 1-2 running tasks for most of your trace, one of which is probably vmstat itself, so that means there is only one running server process (which can obviously only saturate at most 1 CPU). Actually, I decided to run vmstat this morning for a little while after turning off Zope, and during the couple of minutes I had it going, the number of processes running (as indicated by the leftmost column of vmstat's output) was at 0 for all but one line worth of output, so I would guess that vmstat's not including itself in the number of processes there. Even so, though, your assessment about how saturated the CPU is is of course still valid, which leads me to a follow-up question: by default, can a multi-threaded app use both cores? Or would I need to have two instances of the process running (Zope is apparently able to handle multiple instances running reasonably well) in order to have it fully utilize the CPU? The trace suggests that your performance problems are either in userland, or elsewhere in your network or application stack, possibly due to interactions between components. Try to look at why the system is not being given enough work to keep it saturated. Any tips on tools I could use to check this out? I'll of course be looking at Zope profiling tools, to see if I can have them tell me where any bottlenecks are, but if there are any OS-level tools that I could use to profile a given process (or group thereof) for problems, I'd really appreciate hearing about them (simple links to man pages or the like would be fine, I don't mean to waste your time explaining how tools work when I can usually figure it out on my own). Alex Kirk ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
