realtime priority for subspawned process
Hello. I want to have a realtime priority for the particular daemon process launched from X11 application. Daemon is: jackd and app is: audio/ardour. Previous ardour version(s) allowed me to go well with sox but no more for now. It tries to execute: jackd -d oss and the error is: cannot use real-time scheduling (FIFO at priority 10) [for thread 169873472, from thread 169873472] (1: Operation not permitted) It's ok though if i run the jack as a root. But I need not it like this for jack started from ardour. I tried to find a thing like 'realtime group': http://jackaudio.org/linux_rt_config but such a thing on a freebsd doesn't seem to exist. Or is it? I grepped for 'nice', 'rt', 'realtime' in login.conf but nothing like that so far. Thus I have to trick 'jackd' command in the path to use the sudo and run jackd with: nice(1), rtprio(1) or the user with the same uid but with nicer initial priority in a login.conf.db. Which of those 3 ways will work and will be the least evil? Am I missing something and there are more ways to get with ardour? Shall I file a gnats PR as the regular desktop user doesn't seem to be able to use the audio/ardour? Thank you. -- Peter Vereshagin pe...@vereshagin.org (http://vereshagin.org) pgp: A0E26627 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Realtime
On 12/19/10 23:57, RW wrote: On Sun, 19 Dec 2010 14:32:42 +1000 Da Rockfreebsd-questi...@herveybayaustralia.com.au wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. see rtprio(1). It has to be run as root so you would probably want use sudo. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org Bugger! I was hoping there was more to it than that... I've read that already. Thanks ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FBSD Realtime
On 12/20/10 11:49, Brandon Gooch wrote: On Sun, Dec 19, 2010 at 6:49 AM, Da Rock freebsd-questi...@herveybayaustralia.com.au wrote: In light of the significant spam of late, it occurs to me that my former subject line may have been a little sparse... :) On 12/19/10 14:32, Da Rock wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. There's an ongoing discussion/debate between two very knowledgeable and talented developers (plus a supporting cast) regarding the real-time support in FreeBSD; it's happening on freebsd-arch@: http://lists.freebsd.org/pipermail/freebsd-arch/2010-December/010835.html I suggest giving it a read if you are planning on deploying some real-time process (or are interested in reading about FreeBSD internals from some very knowledgeable people). Good show! I'll check that out. I'm actually the latter... :) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FBSD Realtime
On 12/21/10 14:39, Ian Smith wrote: In freebsd-questions Digest, Vol 342, Issue 1, Message: 14 On Sun, 19 Dec 2010 19:49:08 -0600 Brandon Goochjamesbrandongo...@gmail.com wrote: On Sun, Dec 19, 2010 at 6:49 AM, Da Rock freebsd-questi...@herveybayaustralia.com.au wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. There's an ongoing discussion/debate between two very knowledgeable and talented developers (plus a supporting cast) regarding the real-time support in FreeBSD; it's happening on freebsd-arch@: http://lists.freebsd.org/pipermail/freebsd-arch/2010-December/010835.html I suggest giving it a read if you are planning on deploying some real-time process (or are interested in reading about FreeBSD internals from some very knowledgeable people). Brandon, thanks for the pointer; I love it when those guys talk dirty :) Rock, I think that thread well explains why only root may assign rtprio. It's encouraging seeing rtprio get some oil; realt...@freebsd.org has been all but dead for years, its latest message scheduling euthanasia: http://lists.freebsd.org/pipermail/freebsd-realtime/2010-November/35.html cheers, Ian Yeah I know, its why I asked here first. I'm hunting in the archives, but given its so sparse and so far mostly past history I wanted to see if there was any newer info/docs/lists where I could gain some understanding of it. Thanks guys ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Realtime
On Tue, Dec 21, 2010 at 7:21 AM, Da Rock freebsd-questi...@herveybayaustralia.com.au wrote: On 12/19/10 23:57, RW wrote: On Sun, 19 Dec 2010 14:32:42 +1000 Da Rockfreebsd-questi...@herveybayaustralia.com.au wrote: [...] Bugger! I was hoping there was more to it than that... I've read that already. Yeah I was left with the same feeling after tagging your thread for follow-up. The man says that it derives from the HP-UX model so maybe there are some references to that, and we shoudl start there. I would like to know what the exact differences are with nice. I was expecting to find for example, the rtprio value to be in actual time units, question: is there a correlation to the number and a concrete RT value say cpu cycles or so? Is there a way to calculate the the minimum expected timeslice or the maximum time to re-schedule. For example, in PLC design you usually have to guarantee that you will evaluate a certain number of ladder instruction in a maximum amount of time, say 1000 ladder instructions in a worst case of 100ms. So the question is if this is rt scheduling then there must be a correlation with rt units. I don't have much time but I will try to research this soon Thanks ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FBSD Realtime
In freebsd-questions Digest, Vol 342, Issue 1, Message: 14 On Sun, 19 Dec 2010 19:49:08 -0600 Brandon Gooch jamesbrandongo...@gmail.com wrote: On Sun, Dec 19, 2010 at 6:49 AM, Da Rock freebsd-questi...@herveybayaustralia.com.au wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. There's an ongoing discussion/debate between two very knowledgeable and talented developers (plus a supporting cast) regarding the real-time support in FreeBSD; it's happening on freebsd-arch@: http://lists.freebsd.org/pipermail/freebsd-arch/2010-December/010835.html I suggest giving it a read if you are planning on deploying some real-time process (or are interested in reading about FreeBSD internals from some very knowledgeable people). Brandon, thanks for the pointer; I love it when those guys talk dirty :) Rock, I think that thread well explains why only root may assign rtprio. It's encouraging seeing rtprio get some oil; realt...@freebsd.org has been all but dead for years, its latest message scheduling euthanasia: http://lists.freebsd.org/pipermail/freebsd-realtime/2010-November/35.html cheers, Ian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FBSD Realtime
In light of the significant spam of late, it occurs to me that my former subject line may have been a little sparse... :) On 12/19/10 14:32, Da Rock wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. Cheers ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Realtime
On Sun, 19 Dec 2010 14:32:42 +1000 Da Rock freebsd-questi...@herveybayaustralia.com.au wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. see rtprio(1). It has to be run as root so you would probably want use sudo. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FBSD Realtime
On Sun, Dec 19, 2010 at 6:49 AM, Da Rock freebsd-questi...@herveybayaustralia.com.au wrote: In light of the significant spam of late, it occurs to me that my former subject line may have been a little sparse... :) On 12/19/10 14:32, Da Rock wrote: I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. There's an ongoing discussion/debate between two very knowledgeable and talented developers (plus a supporting cast) regarding the real-time support in FreeBSD; it's happening on freebsd-arch@: http://lists.freebsd.org/pipermail/freebsd-arch/2010-December/010835.html I suggest giving it a read if you are planning on deploying some real-time process (or are interested in reading about FreeBSD internals from some very knowledgeable people). -Brandon ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Realtime
I can't seem to get my head on straight with the realtime scheduling in FBSD despite all my googling. Can someone give me a pointer to the latest info? As far as I can tell FBSD has it, but only root(?) can use it? I'm interested in who can use it, and how to allow a user to obtain the realtime access. Cheers ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
realtime network replication
Ansar Mohammed wrote: Hello all, I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? Hi, The following configuration seems to do what you ask for: Two NFS servers, each of them provides access to a huge equal-sized file-container. Third server mounts directories with files-containers from the prevoius two servers. GEOM RAID1 mirroring is used on the third server to create a /home filesystem backed by two huge file-containers. You will have a copy of your /home inside the GEOM file-container on each of the two servers. You will get realtime data replication. Drop a note if the performance of such configuration is acceptable :) Best regards, EforeZZ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: realtime network replication
Ansar Mohammed wrote: Hello all, I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? Maybe the best option for you would be http://www.furquim.org/chironfs/index.en.html used in combination with NFS. It's available as fusefs-chiron in ports. signature.asc Description: OpenPGP digital signature
Re: realtime network replication
On Nov 17, 2008, at 5:32 PM, Ansar Mohammed wrote: Ok, I have /home on one server, I need to REPLICATE /home to another server in realtime. Kinda like a mirror, but over a network. I don't want to use rsync because its not realtime. Yeah, your problem description is clear enough. If you want true redundancy and the data available from both machines, you're talking about more of a clustered filesystem like Veritas CFS or maybe Andrew FS / DFS from Transarc. However, you might also find something like /usr/ports/net/unison a reasonable alternative: http://www.cis.upenn.edu/~bcpierce/unison/ -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
realtime network replication
Hello all, I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: realtime network replication
On Nov 17, 2008, at 5:25 PM, Ansar Mohammed wrote: I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? Most people use a network file system (ie, NFS, Samba/CIFS, etc) for this sort of thing -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: realtime network replication
Ok, I have /home on one server, I need to REPLICATE /home to another server in realtime. Kinda like a mirror, but over a network. I don't want to use rsync because its not realtime. -Original Message- From: Chuck Swiger [mailto:[EMAIL PROTECTED] Sent: November 17, 2008 8:28 PM To: Ansar Mohammed Cc: freebsd-questions@freebsd.org Subject: Re: realtime network replication On Nov 17, 2008, at 5:25 PM, Ansar Mohammed wrote: I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? Most people use a network file system (ie, NFS, Samba/CIFS, etc) for this sort of thing -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: realtime network replication
On 11/17/2008 19:32, Ansar Mohammed wrote: Ok, I have /home on one server, I need to REPLICATE /home to another server in realtime. Kinda like a mirror, but over a network. I don't want to use rsync because its not realtime. Something along the lines of this maybe: http://phaq.phunsites.net/2006/08/11/realtime-file-system-replication-on-freebsd/ (Disclaimer I've not used the procedure above.) -Original Message- From: Chuck Swiger [mailto:[EMAIL PROTECTED] Sent: November 17, 2008 8:28 PM To: Ansar Mohammed Cc: freebsd-questions@freebsd.org Subject: Re: realtime network replication On Nov 17, 2008, at 5:25 PM, Ansar Mohammed wrote: I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? Most people use a network file system (ie, NFS, Samba/CIFS, etc) for this sort of thing -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Regards, Eric signature.asc Description: OpenPGP digital signature
RE: realtime network replication
Ideally geom would have been perfect, except we cant have more than one host writing to the mirror. -Original Message- From: Chuck Swiger [mailto:[EMAIL PROTECTED] Sent: November 17, 2008 8:28 PM To: Ansar Mohammed Cc: freebsd-questions@freebsd.org Subject: Re: realtime network replication On Nov 17, 2008, at 5:25 PM, Ansar Mohammed wrote: I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? Most people use a network file system (ie, NFS, Samba/CIFS, etc) for this sort of thing -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: realtime network replication
Ansar Mohammed([EMAIL PROTECTED])@2008.11.17 20:25:18 -0500: Hello all, I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) What are my options? You might have to wait until DragonflyBSD has clustering capabilities. It is quickly moving towards that goal. HAMMER ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: realtime network replication
On Tue, Nov 18, 2008 at 3:25 AM, Ansar Mohammed [EMAIL PROTECTED] wrote: Hello all, I need to replicate /home between two freebsd servers in real time (no scheduled rsyncs) what about csync ? What are my options? ___ 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: TRUE realtime priority
well last night i tested it with SCHED_4BSD instead of sched_ule, reduced quantum to 2 from 10 and for now - no voice chopping under high load. but i will test it more. What version of FreeBSD are you using for this? Yes, it matters. got RELENG_7 yesterday by cvs, now SCHED_ULE works fine. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: TRUE realtime priority
On Thu, Oct 09, 2008 at 10:00:16PM +0200, Wojciech Puchar wrote: well last night i tested it with SCHED_4BSD instead of sched_ule, reduced quantum to 2 from 10 and for now - no voice chopping under high load. but i will test it more. What version of FreeBSD are you using for this? Yes, it matters. got RELENG_7 yesterday by cvs, now SCHED_ULE works fine. Great! Glad to hear it. :-) Thanks for following up! -- | Jeremy Chadwickjdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: TRUE realtime priority
quantum to 2 from 10 and for now - no voice chopping under high load. but i will test it more. What version of FreeBSD are you using for this? Yes, it matters. 7.0 please give me few days to make more precise reports from my users and me being on place today (not just testing this through echo). ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: TRUE realtime priority
Well, basically you are the only one who can answer that. And that's not a paradox or an attempt at humor. You should investigate. Maybe interrupts aren't processed fast enough (hardware sharing an interrupt?), or memory or kernel resources are low. well last night i tested it with SCHED_4BSD instead of sched_ule, reduced quantum to 2 from 10 and for now - no voice chopping under high load. but i will test it more. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: TRUE realtime priority
On Tue, Oct 07, 2008 at 11:18:32AM +0200, Wojciech Puchar wrote: Well, basically you are the only one who can answer that. And that's not a paradox or an attempt at humor. You should investigate. Maybe interrupts aren't processed fast enough (hardware sharing an interrupt?), or memory or kernel resources are low. well last night i tested it with SCHED_4BSD instead of sched_ule, reduced quantum to 2 from 10 and for now - no voice chopping under high load. but i will test it more. What version of FreeBSD are you using for this? Yes, it matters. -- | Jeremy Chadwickjdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: TRUE realtime priority
for example when lots of spam comes to server and lots of resource hungry spamassassin processes are spawned our calls starts to be crappy. And that's why I always have isolated my telephony servers from normal-ISP tasks: They provide real-time tasks and should be running in memory only. i know that but it's not an answer to my question anyway. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
TRUE realtime priority
is it possible on FreeBSD i run asterisk with realtime priority. it works perfectly no matter how much CPU is loaded by other non-telephony tasks. but with lots of VM pressure it starts to so... like like tha..that... what causes it to behave like that and how to fix it. for example when lots of spam comes to server and lots of resource hungry spamassassin processes are spawned our calls starts to be crappy. CPU load for asterisk rarely exceed few percent! i think having separate computer just for this is stupid, i would do this having no other choice, but can it be done without this. realtime priority is realtime priority anyway - it should work. i understand that asterisk may stall requesting memory when VM pressure is high, but asterisk's thread that processes already set-up call - just moving voicepackets in and out - it doesn't need to allocate more memory so why it's stalled? any network problems are eliminated, the effect happens even with 2 local phones. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: TRUE realtime priority
On Mon, Oct 06, 2008 at 10:21:01PM +0200, Wojciech Puchar wrote: is it possible on FreeBSD No, I think. i run asterisk with realtime priority. it works perfectly no matter how much CPU is loaded by other non-telephony tasks. but with lots of VM pressure it starts to so... like like tha..that... what causes it to behave like that and how to fix it. Well, basically you are the only one who can answer that. And that's not a paradox or an attempt at humor. You should investigate. Maybe interrupts aren't processed fast enough (hardware sharing an interrupt?), or memory or kernel resources are low. for example when lots of spam comes to server and lots of resource hungry spamassassin processes are spawned our calls starts to be crappy. CPU load for asterisk rarely exceed few percent! Yes, but FreeBSD isn't a _hard_ real-time OS (see below). i think having separate computer just for this is stupid, i would do this having no other choice, but can it be done without this. realtime priority is realtime priority anyway - it should work. It does depend what you mean by real-time. Usually real-time systems are devided into the soft and hard categories. See the Wikipedia article on real-time computing [http://en.wikipedia.org/wiki/Real-time_computing] and operating systems [http://en.wikipedia.org/wiki/Real-time_operating_system]. Most hard real-time systems are embedded systems with a specific function (say, ECU, FADEC, ABS, digital music player). I don't think there are general use OS's which would classify as hard real-time (AFAIK, RTLinux runs Linux as a low-priority task on a real-time core). Most of them support soft real-time, as in we'll try to get these tasks done before a specific deadline, but no promises. 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) pgpznmhwkzvAp.pgp Description: PGP signature
Re: TRUE realtime priority
--- On Tue, 10/7/08, Wojciech Puchar [EMAIL PROTECTED] wrote: Hello Wojciech is it possible on FreeBSD Its soft RT. Try to use the latest ULE scheduler. i run asterisk with realtime priority. it works perfectly no matter how much CPU is loaded by other non-telephony tasks. but with lots of VM pressure it starts to so... like like tha..that... what causes it to behave like that and how to fix it. VM (interrupt priority) runs higher priority than RT in FreeBSD. The interrupt priority preempts RT. To fix it, don't have any VM activity. Increase your RAM. for example when lots of spam comes to server and lots of resource hungry spamassassin processes are spawned our calls starts to be crappy. CPU load for asterisk rarely exceed few percent! i think having separate computer just for this is stupid, i would do this having no other choice, but can it be done without this. When a postman deliver mail, do you check whether are they to you before accept or just blindly accept all and check later? :) Best regards Unga ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
TRUE realtime priority
for example when lots of spam comes to server and lots of resource hungry spamassassin processes are spawned our calls starts to be crappy. And that's why I always have isolated my telephony servers from normal-ISP tasks: They provide real-time tasks and should be running in memory only. Edwin -- Edwin Groothuis Website: http://www.mavetju.org/ [EMAIL PROTECTED] Weblog: http://www.mavetju.org/weblog/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Can a realtime process downgrade while running?
Hi all I ran amarok and ossxmix in realtime. Following is the display from the top command. PID USERNAME THR PRI NICE SIZERES STATE C TIME WCPU COMMAND 1047 test6 960 72524K 29776K ucond 0 1:06 0.15% amarokapp 940 root1 960 173M 45560K select 0 1:36 0.00% Xorg 1065 test1 44 r0 14528K 7336K select 0 0:12 0.00% ossxmix Following are the rtprio output for those processes: $ rtprio 1047 [for amarokapp ] rtprio: realtime priority 0 $ rtprio 1065 [for ossxmix ] rtprio: realtime priority 0 $ rtprio 940[ for Xorg ] rtprio: normal priority Why does it show 96 under the PRI column for amarokapp? And it doesn't show r0 for NICE for amarokapp. Does it mean amarokapp downgraded to normal priority? But while amarok is playing rtprio shows it is still realtime. which one is right? Best Regards Unga Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: is there a port to 'copy' audio from one soundcard to another in realtime?
Steve Franks [EMAIL PROTECTED] writes: Say I have multiple usb audio devices, and I want to make a simple 'mixer' - anyone know how to do that? You could try just using cat(1) to copy between the devices... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
is there a port to 'copy' audio from one soundcard to another in realtime?
Say I have multiple usb audio devices, and I want to make a simple 'mixer' - anyone know how to do that? Thanks, Steve ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Realtime File System Replication On FreeBSD How reliable is it?
Hi all, I found this site with instructions to setup what is basically a network RAID-1: http://phaq.phunsites.net/2006/08/11/realtime-file-system-replication-on-freebsd/ My question is: What experience does anyone have using this solution on a production environment? I will appreciate any thoughts or advise you may provide. Regards, Antonio Noriega ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Realtime File System Replication On FreeBSD How reliable is it?
Antonio wrote: Hi all, I found this site with instructions to setup what is basically a network RAID-1: http://phaq.phunsites.net/2006/08/11/realtime-file-system-replication-on-freebsd/ My question is: What experience does anyone have using this solution on a production environment? I will appreciate any thoughts or advise you may provide. I have used vinum for quite a while, never, ever had a problem. In fact, in RAID-1, I had a motherboard and a disk fail simultaneously. I popped the good drive into another box, and we were right back up after some very minor modifications. Of course, this is no solution to rotating backups though, but in addition to it, it handles well, easy to set up, and easy to document your setup. I also use it on a backup machine that has 6 72GB SCSI drives to span them together so that in addition to my tape backups, I have a 300GB storage facility (running on an old CacheFlow 3000) that I run Amanda on to hold my most critical information. vinum (gvinum) has worked good for me for a good couple years, at least. Steve ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Realtime File System Replication On FreeBSD How reliable is it?
Steve Bertrand writes: I have used vinum for quite a while, never, ever had a problem. In fact, in RAID-1, I had a motherboard and a disk fail simultaneously. I popped He is not asking about disk RAID. I found this site with instructions to setup what is basically a network RAID-1: http://phaq.phunsites.net/2006/08/11/realtime-file-system-replication-on-freebsd/ Looking at the link it seems he is actually asking about geom_gate. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
freebsd realtime network usage limiter?
That is, I have a router connecting to the internet through PPP. There are 4 computers (and a DSL modem) connected to the router. The router does not limit or share internet speed evenly, so if I download via TCP at full speed, others complain about slow loading web pages. My comp has a FreeBSD OS. How can I limit my upload and download speed to, say, 0.333 of the speed permitted by my provider? Also, if I had a FreeBSD router, how could I share speed evenly? BTW: Is it true that are some types of traffic that need higher priority, such as games using UDP, so that data does not lag? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: freebsd realtime network usage limiter?
On 1/23/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: That is, I have a router connecting to the internet through PPP. There are 4 computers (and a DSL modem) connected to the router. The router does not limit or share internet speed evenly, so if I download via TCP at full speed, others complain about slow loading web pages. My comp has a FreeBSD OS. How can I limit my upload and download speed to, say, 0.333 of the speed permitted by my provider? Also, if I had a FreeBSD router, how could I share speed evenly? You can pretty easily set up a FBSD router to shpe bandwidth like this. I have done exactly that using the PF firewall with ALTQ. Unfortunately, ALTQ is not availible as a loadable module, so if you want to use it, you'll have to recompile the kernel with support enabled. http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/firewalls-pf.html http://www.openbsd.org/faq/pf/ that should get you started BTW: Is it true that are some types of traffic that need higher priority, such as games using UDP, so that data does not lag? Absolutely it is true. I don't run any gaming through my firewall, but one great example is TCP ACK packets. If you are on an asymmetrical connection (up/down bandwith aren't equal) you should prioritize outgoing TCP ACK packets to the highest level, since this will improve download performance. You might want to look at ports/security/pfw if you're not familiar with pf syntax, and it can make building a ruleset a lot easier, at least for the first time. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- -- I'm nerdy in the extreme and whiter than sour cream ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
binary called top not have realtime filter/search? [#SHAZBOTAA7235423352662A]
I've red the manpage for top (from heh heh top to bottom...), and I am amazed that there is not a feature to hit '/' or '?' in order to search and display only processes which match a certain keyword/search term. For example, a user running top could hit '/' and enter fire, which would display processes related to firefox. What is the best way to get (such) a feature added to top?! I know I know, I'm always causing mayhem. *grin* -- Peter aka SweetPete! La Jolla San Diego, CA, 92039, USA, EARTH ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: binary called top not have realtime filter/search? [#SHAZBOTAA7235423352662A]
In the last episode (Jan 12), Peter aka SweetPete said: I've red the manpage for top (from heh heh top to bottom...), and I am amazed that there is not a feature to hit '/' or '?' in order to search and display only processes which match a certain keyword/search term. For example, a user running top could hit '/' and enter fire, which would display processes related to firefox. What is the best way to get (such) a feature added to top?! I know I know, I'm always causing mayhem. *grin* Submit a patch :) It's a useful idea, though. Usually filtering on username (u myuser), or sorting by size (o size) works for me. -- Dan Nelson [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: binary called top not have realtime filter/search? [#SHAZBOTAA7235423352662A]
On 2007-01-12 14:02, Peter aka SweetPete [EMAIL PROTECTED] wrote: I've red the manpage for top (from heh heh top to bottom...), and I am amazed that there is not a feature to hit '/' or '?' in order to search and display only processes which match a certain keyword/search term. For example, a user running top could hit '/' and enter fire, which would display processes related to firefox. That's an excellent idea :) Should we also allow for limiting by other stuff too, i.e. like the 'l' command in the mail/mutt mailer accepts a 'limit pattern' with a syntax like: Limiting by PID ~p minpid-maxpidonly show pids in [minpid...maxpid] ~p maxpid only show pids less than maxpid ~p minpid only show pids greater than minpid Limiting by username or user ID ~u username only show processes of user `username' ~U uid only show processes of user uid ~U uidmin-uidmaxonly show processes of users minuid-maxuid Limiting by number of threads ~t minthr-maxthronly show processes with minthr-maxthr threads ~t maxthr only show processes with less than maxthr threads ~t minthr only show processes with more than minthr threads Limiting by priority ~P minpri-maxprionly show processes with minpri-maxpri priority ~P maxpri only show processes with less than maxpri priority ~P minpri [...] You get the idea... What is the best way to get (such) a feature added to top?! I know I know, I'm always causing mayhem. *grin* If you have a patch to submit, I'm sure we can find people who are interested in reviewing, testing and committing it. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: binary called top not have realtime filter/search? [#SHAZBOTAA7235423352662A]
On 2007-01-12 14:02, Peter aka SweetPete [EMAIL PROTECTED] wrote: I've red the manpage for top (from heh heh top to bottom...), and I am amazed that there is not a feature to hit '/' or '?' in order to search and display only processes which match a certain keyword/search term. For example, a user running top could hit '/' and enter fire, which would display processes related to firefox. That's an excellent idea :) Should we also allow for limiting by other stuff too, i.e. like the 'l' command in the mail/mutt mailer accepts a 'limit pattern' with a syntax like: ... Limiting by username or user ID ~u username only show processes of user `username' ~U uid only show processes of user uid ~U uidmin-uidmax only show processes of users minuid-maxuid username is already there... u Display only processes owned by a specific username (prompt for username). If the username specified is simply +, then processes belonging to all users will be displayed. -philip ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: binary called top not have realtime filter/search? [#SHAZBOTAA7235423352662A]
On 2007-01-12 19:27, Philip Hallstrom [EMAIL PROTECTED] wrote: On 2007-01-12 14:02, Peter aka SweetPete [EMAIL PROTECTED] wrote: I've red the manpage for top (from heh heh top to bottom...), and I am amazed that there is not a feature to hit '/' or '?' in order to search and display only processes which match a certain keyword/search term. For example, a user running top could hit '/' and enter fire, which would display processes related to firefox. That's an excellent idea :) Should we also allow for limiting by other stuff too, i.e. like the 'l' command in the mail/mutt mailer accepts a 'limit pattern' with a syntax like: Limiting by username or user ID ~u username only show processes of user `username' ~U uidonly show processes of user uid ~U uidmin-uidmax only show processes of users minuid-maxuid username is already there... u Display only processes owned by a specific username (prompt for username). If the username specified is simply +, then processes belonging to all users will be displayed. I know. I was thinking loudly of a way to extend this without having to hijack the entire keyboard. If/when we have a more featureful limiting mechanism, we can certainly leave 'u' as a key binding that works exactly the same as before, for compatibility reasons. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: monitor bandwith realtime per IP
On 8/11/05, vladone [EMAIL PROTECTED] wrote: Hi! Know somebody an aplication who can monitor bandwith (real time) per IP? Something like bwm-ng but per IP? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] I use these 2 programs for the console net-mgmt/iftop net/traffic -- Regards. Abu Khaled ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
monitor bandwith realtime per IP
Hi! Know somebody an aplication who can monitor bandwith (real time) per IP? Something like bwm-ng but per IP? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
