[Vserver] NGnet for vserver 1.9.5 ?
Hello, Did enyone get NGnet running on vserver 1.9.5? Best regards, Bert. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [RE:] Re: [Vserver] Linux Vserver - Feature Question
On Thu, Mar 31, 2005 at 09:22:10PM -0600, Matthew Nuzum wrote: I do think that this would be an interesting feature. http://www.theshore.net/~caker/uml/patches/ (seems to have updated patches regarding this stuff) http://www.theshore.net/~caker/uml/patches/token-limiter.README will look into it .. anybody volunteering to test such stuff? TIA, Herbert I think I can create a test case for this. I have a server that is not currently running any vserver stuff that will be ok with a reboot now and then. sounds good, please try to get 1.9.5.5 working there, because it already contains some blkio accounting and it would be very interesting to monitor those values ... (maybe with rrdtools) TIA, Herbert I don't monitor this list that closely these days, so jog me when there's something ready for me to test. -- Matthew Nuzum [EMAIL PROTECTED] www.followers.net - Makers of Elite Content Management System View samples of Elite CMS in action by visiting http://www.followers.net/portfolio/ ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Vservers under Debian
On Fri, Apr 01, 2005 at 09:34:04AM +0100, Gaz Wilson wrote:
On Thu, 31 Mar 2005, Bjoern Steinbrink wrote:
Hello,
On 2005.03.31 17:56:22 +0100, Gaz Wilson wrote:
On Thu, 31 Mar 2005, Gilles wrote:
test01:/# ifconfig
Segmentation fault
test01:/# ifconfig -a
Segmentation fault
ifconfig is old and only knows about named interface addresses. stable
tools always created named interface addresses using ifconfig, but the
alpha tools use iproute to setup networking and thus can create nameless
interface addresses. Those are not listed by ifconfig, but you can use
ip addr show or just ip a instead. If you want named interfaces
addresses, you have to tell the tools about that, please check the flower
page for details, i don't remember them ;)
ifconfig shouldn't segfault though... strace available?
Morning Bjoern (and everyone else). I put a copy of strace within the vserver
and the output wasn't as big as I expected, and doesn't really tell me much,
other than the process gets sent a SEGV directly after a socket action -
see what you think:
execve(/sbin/ifconfig, [ifconfig], [/* 16 vars */]) = 0
uname({sys=Linux, node=test01.mydomain, ...}) = 0
brk(0) = 0x8057b28
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0
x40017000
access(/etc/ld.so.nohwcap, F_OK) = -1 ENOENT (No such file or
directory)
open(/etc/ld.so.preload, O_RDONLY)= -1 ENOENT (No such file or
directory)
open(/etc/ld.so.cache, O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=7470, ...}) = 0
old_mmap(NULL, 7470, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40018000
close(3)= 0
access(/etc/ld.so.nohwcap, F_OK) = -1 ENOENT (No such file or
directory)
open(/lib/tls/libc.so.6, O_RDONLY)= 3
read(3, \177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360Y\1..., 512) =
512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1253924, ...}) = 0
old_mmap(NULL, 1260140, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4001a000
old_mmap(0x40143000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
0x12
9000) = 0x40143000
old_mmap(0x4014b000, 10860, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANON
YMOUS, -1, 0) = 0x4014b000
close(3)= 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0
x4014e000
set_thread_area({entry_number:-1 - 6, base_addr:0x4014e2a0, limit:1048575,
seg_
32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0,
usea
ble:1}) = 0
munmap(0x40018000, 7470)= 0
open(/usr/lib/locale/locale-archive, O_RDONLY|O_LARGEFILE) = -1 ENOENT (No
suc
h file or directory)
brk(0) = 0x8057b28
brk(0x8078b28) = 0x8078b28
brk(0) = 0x8078b28
brk(0x8079000) = 0x8079000
open(/usr/share/locale/locale.alias, O_RDONLY) = -1 ENOENT (No such file or
di
rectory)
brk(0) = 0x8079000
brk(0) = 0x8079000
brk(0x8078000) = 0x8078000
brk(0) = 0x8078000
open(/usr/lib/locale/en_GB/LC_IDENTIFICATION, O_RDONLY) = -1 ENOENT (No such
f
ile or directory)
open(/usr/lib/locale/en/LC_IDENTIFICATION, O_RDONLY) = -1 ENOENT (No such
file
or directory)
uname({sys=Linux, node=test01.mydomain, ...}) = 0
access(/proc/net, R_OK) = 0
access(/proc/net/unix, R_OK) = 0
socket(PF_FILE, SOCK_DGRAM, 0) = 3
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
access(/proc/net/if_inet6, R_OK) = 0
socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = -1 EAFNOSUPPORT (Address family not
s
upported by protocol)
access(/proc/net/ax25, R_OK) = 0
socket(PF_AX25, SOCK_DGRAM, 0) = 5
access(/proc/net/nr, R_OK)= 0
socket(PF_NETROM, SOCK_SEQPACKET, 0)= 6
access(/proc/net/rose, R_OK) = 0
socket(PF_ROSE, SOCK_DGRAM, 0) = -1 ESOCKTNOSUPPORT (Socket type not
su
pported)
access(/proc/net/ipx, R_OK) = -1 ENOENT (No such file or
directory)
access(/proc/net/appletalk, R_OK) = -1 ENOENT (No such file or
directory)
access(/proc/sys/net/econet, R_OK)= -1 ENOENT (No such file or
directory)
access(/proc/sys/net/ash, R_OK) = -1 ENOENT (No such file or
directory)
access(/proc/net/x25, R_OK) = 0
socket(PF_X25, SOCK_SEQPACKET, 0 unfinished ...
+++ killed by SIGSEGV +++
hmm, looks the the x25 issues strikes again ...
if you do not have a strong reason for compiling x25
into the kernel, I would advise to remove it ...
(I already fixed one x25 issue, but obviously the
code is more broken, will look into it soon)
btw, probably happens with vanilla kernel too ...
(maybe at an earlier stage, though)
HTH,
Herbert
Luck :)
GW
--
/ Gary
Re: [Vserver] NGnet for vserver 1.9.5 ?
On Friday 01 April 2005 13:51, Bert De Vuyst wrote: Hello, Did enyone get NGnet running on vserver 1.9.5? Best regards, http://distfiles.gentoo.org/distfiles/vspatches-1.9.5-00.tar.bz2 contains ngnet 9.4 against 1.9.5 Bert. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- He who asks a question is a fool for a minute, He who doesn't ask is a fool for a lifetime. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] Conversion script for legacy config files to new config directory
Heyaz, After half an hour of scripting I came up with a somewhat working conversion script for Linux-VServer configs to the new directory configuration layout. It has been created for my specific environment, but I hope it helps someone ;) vscfg-convert.sh Description: application/shellscript ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
Hi All, I encountered a problem when I wnated to start a NTP on a vserver-base system i get cap_set_proc() failed to drop root privileges: Operation not permitted The system is Suse 9.2 with a vserver 2.6.9 kernel Any hints Oliver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
01 2005 17:19 [EMAIL PROTECTED] (a): Hi All, I encountered a problem when I wnated to start a NTP on a vserver-base system i get cap_set_proc() failed to drop root privileges: Operation not permitted The system is Suse 9.2 with a vserver 2.6.9 kernel does ntpd start on this kernel in xid=0, that is, _not_ in virtual context? I'm not sure, but If it doesn't, see capabilities module or like that -- realtime etc, depends on the kernel configuration. -- Peter V. Saveliev ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
I encountered a problem when I wnated to start a NTP on a vserver-base system i get cap_set_proc() failed to drop root privileges: Operation not permitted The system is Suse 9.2 with a vserver 2.6.9 kernel does ntpd start on this kernel in xid=0, that is, _not_ in virtual context? yes the ntp is running in the main context I'm not sure, but If it doesn't, see capabilities module or like that -- realtime etc, depends on the kernel configuration. hmm - so I think I have to mod the sources as I cant find appropriate kernel config params... Oliver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Vservers under Debian
On Fri, 1 Apr 2005, Herbert Poetzl wrote: hmm, looks the the x25 issues strikes again ... if you do not have a strong reason for compiling x25 into the kernel, I would advise to remove it ... (I already fixed one x25 issue, but obviously the code is more broken, will look into it soon) Yep, you're right - have disabled .X25 and bingo - ifconfig suddenly starts working! Many thanks! You've made me happy once again, ready for the weekend :D -- / Gary Wilson, aka dragon/dragonlord/dragonv480\ .'(_.--. e: [EMAIL PROTECTED] MSN: dragonv480 .--._)`. _ | Skype:dragonv480 ICQ:342070475 AIM:dragonv480 | _ `.( `--' w: http://volvo480.northernscum.org.uk `--' ).' \w: http://www.northernscum.org.uk / ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
skip / does ntpd start on this kernel in xid=0, that is, _not_ in virtual context? yes the ntp is running in the main context I'm not sure, but If it doesn't, see capabilities module or like that -- realtime etc, depends on the kernel configuration. hmm - so I think I have to mod the sources as I cant find appropriate kernel config params... skip / So, that's not, what I think... I encountered the same problem, but on the normal kernels 2.6.8/9/10. The solve was to 'modprobe capabilities' or 'modprobe realtime'. But if ntpd runs in the main context, I think, it is not the same case. Maybe, you've to look around capabilities(7) to get appropriate CAP_* in the context? -- Peter V. Saveliev ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] NGnet for vserver 1.9.5 ?
On Fri, Apr 01, 2005 at 03:16:40PM +0200, Benedikt Boehm wrote: On Friday 01 April 2005 13:51, Bert De Vuyst wrote: Hello, Did enyone get NGnet running on vserver 1.9.5? Best regards, http://distfiles.gentoo.org/distfiles/vspatches-1.9.5-00.tar.bz2 contains ngnet 9.4 against 1.9.5 interesting! who did the forward port? TIA, Herbert Bert. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- He who asks a question is a fool for a minute, He who doesn't ask is a fool for a lifetime. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
On Fri, Apr 01, 2005 at 07:06:19PM +0400, Peter V. Saveliev wrote: skip / does ntpd start on this kernel in xid=0, that is, _not_ in virtual context? yes the ntp is running in the main context I'm not sure, but If it doesn't, see capabilities module or like that -- realtime etc, depends on the kernel configuration. hmm - so I think I have to mod the sources as I cant find appropriate kernel config params... check for security modules and capabilities in particular skip / So, that's not, what I think... I encountered the same problem, but on the normal kernels 2.6.8/9/10. The solve was to 'modprobe capabilities' or 'modprobe realtime'. But if ntpd runs in the main context, I think, it is not this diagnosis sounds very accurate to me ... I would double check if capabilities are loaded/compiled in maybe you are in deep trouble and do not even know it ;) best, Herbert the same case. Maybe, you've to look around capabilities(7) to get appropriate CAP_* in the context? -- Peter V. Saveliev ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] Portmapper within vservers
I have been reading through the list archives about NFS and am trying to get the userspace server unfs3 working, but when I start it, the server errors with: unable to register (NFS3_PROGRAM, NFS_V3, udp) or, if I force tcp only operation: unable to register (NFS3_PROGRAM, NFS_V3, tcp) Did I miss something in the docs about this - do I need to tweak the portmapper in some way? I notice a script v_portmap on the main host - what exactly does this do (am I a being blind, or do these scripts have no documentation to explain them?) Once again (and this is the last time this week I'll bother the list), THANKS GW -- / Gary Wilson, aka dragon/dragonlord/dragonv480\ .'(_.--. e: [EMAIL PROTECTED] MSN: dragonv480 .--._)`. _ | Skype:dragonv480 ICQ:342070475 AIM:dragonv480 | _ `.( `--' w: http://volvo480.northernscum.org.uk `--' ).' \w: http://www.northernscum.org.uk / ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
Hi Herbert, hmm - so I think I have to mod the sources as I cant find appropriate kernel config params... check for security modules and capabilities in particular Can you tell me what I must look for ? If you mean kernel modules - i have a monolithic one - so no modules are loaded at all So, that's not, what I think... I encountered the same problem, but on the normal kernels 2.6.8/9/10. The solve was to 'modprobe capabilities' or 'modprobe realtime'. But if ntpd runs in the main context, I think, it is not this diagnosis sounds very accurate to me ... I would double check if capabilities are loaded/compiled in maybe you are in deep trouble and do not even know it ;) as we use vserver only for process separeratin due to better maintenance it will not affect operational security - but good hint anyway Oliver -- Diese Nachricht wurde digital unterschrieben oliwel's public key: http://www.oliwel.de/oliwel.crt Basiszertifikat: http://www.ldv.ei.tum.de/page72 smime.p7s Description: S/MIME Cryptographic Signature ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Linux Vserver - Feature Question
On Thu, Mar 31, 2005 at 09:22:10PM -0600, Matthew Nuzum wrote: I think I can create a test case for this. I have a server that is not currently running any vserver stuff that will be ok with a reboot now and then. sounds good, please try to get 1.9.5.5 working there, because it already contains some blkio accounting and it would be very interesting to monitor those values ... (maybe with rrdtools) TIA, Herbert I'm still doing my month-end backup, but when that's done I'll start installing the vserver 1.9.5.5. Here is the test case that seems most logical to me, but advice on how to actually do concrete tests would be useful. 1. Create two vservers (vsa and vsb), start both. 2. In vsa start some heavily i/o intensive operation 3. In vsb try to do some tasks and notice how much i/o bandwidth I have available. Alternative plan: 1. Create 1 vserver and start it 2. In the vserver, start some heavily i/o intensive operation 3. In the host server try to do some tasks and notice how much i/o bandwidth I have available 4. After step 2 completes, in host server start a heavily i/o intensive operation 5. In vserver, try to do some tasks and notice how much i/o bandwidth I have available I have two ideas on heavily i/o intensive operation 1. I have a database with 35 million records. Doing any aggregate function such as max() requires several sequential scans and takes a significant amount of time. 2. Preparing my month end backup requires copying 13 GB of data. Any other suggestions? Question: I have only subjectively noticed a dramatic decrease in server performance when a vserver is performing i/o intensive tasks. How can I objectively measure and produce concrete numbers? -- Matthew Nuzum [EMAIL PROTECTED] www.followers.net - Makers of Elite Content Management System View samples of Elite CMS in action by visiting http://www.followers.net/portfolio/ ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Linux Vserver - Feature Question
On Fri, Apr 01, 2005 at 12:23:00PM -0600, Matthew Nuzum wrote: On Thu, Mar 31, 2005 at 09:22:10PM -0600, Matthew Nuzum wrote: I think I can create a test case for this. I have a server that is not currently running any vserver stuff that will be ok with a reboot now and then. sounds good, please try to get 1.9.5.5 working there, because it already contains some blkio accounting and it would be very interesting to monitor those values ... (maybe with rrdtools) TIA, Herbert I'm still doing my month-end backup, but when that's done I'll start installing the vserver 1.9.5.5. Here is the test case that seems most logical to me, but advice on how to actually do concrete tests would be useful. 1. Create two vservers (vsa and vsb), start both. 2. In vsa start some heavily i/o intensive operation 3. In vsb try to do some tasks and notice how much i/o bandwidth I have available. Alternative plan: 1. Create 1 vserver and start it 2. In the vserver, start some heavily i/o intensive operation 3. In the host server try to do some tasks and notice how much i/o bandwidth I have available 4. After step 2 completes, in host server start a heavily i/o intensive operation 5. In vserver, try to do some tasks and notice how much i/o bandwidth I have available I have two ideas on heavily i/o intensive operation 1. I have a database with 35 million records. Doing any aggregate function such as max() requires several sequential scans and takes a significant amount of time. 2. Preparing my month end backup requires copying 13 GB of data. Any other suggestions? Question: I have only subjectively noticed a dramatic decrease in server performance when a vserver is performing i/o intensive tasks. How can I objectively measure and produce concrete numbers? there are two 'aspects' of what you 'experience' as performance here. first the increased latency when doing I/O (which is the result of several I/O transactions already going on when you do whatever you do), and the decreased throughput (which IMHO is not really the issue here, just think 40MB/s transfer with UDMA and 4MB/s without ...) I would suggest to 'test' with different I/O schedulers activated, because I think that the default I/O scheduler might be sub-optimal for vserver-type I/O loads anyways ... TIA (for testing) Herbert -- Matthew Nuzum [EMAIL PROTECTED] www.followers.net - Makers of Elite Content Management System View samples of Elite CMS in action by visiting http://www.followers.net/portfolio/ ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] unable to run ntp on vserver kernel / drop root privileges not allowed
On Fri, Apr 01, 2005 at 07:31:07PM +0200, Oliver Welter wrote: Hi Herbert, hmm - so I think I have to mod the sources as I cant find appropriate kernel config params... check for security modules and capabilities in particular Can you tell me what I must look for ? If you mean kernel modules - i have a monolithic one - so no modules are loaded at all CONFIG_SECURITY=y CONFIG_SECURITY_CAPABILITIES=y or CONFIG_SECURITY=n both will use the capabilities compiled in ... So, that's not, what I think... I encountered the same problem, but on the normal kernels 2.6.8/9/10. The solve was to 'modprobe capabilities' or 'modprobe realtime'. But if ntpd runs in the main context, I think, it is not this diagnosis sounds very accurate to me ... I would double check if capabilities are loaded/compiled in maybe you are in deep trouble and do not even know it ;) as we use vserver only for process separeratin due to better maintenance it will not affect operational security - but good hint anyway it will, it will. trust me ... most checks in linux-vserver kernel code are based on linux capabilities, so they are a requirement, not some kind of addon/feature ... best, Herbert Oliver -- Diese Nachricht wurde digital unterschrieben oliwel's public key: http://www.oliwel.de/oliwel.crt Basiszertifikat: http://www.ldv.ei.tum.de/page72 ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Portmapper within vservers
On Fri, Apr 01, 2005 at 05:36:29PM +0100, Gaz Wilson wrote: I have been reading through the list archives about NFS and am trying to get the userspace server unfs3 working, but when I start it, the server errors with: unable to register (NFS3_PROGRAM, NFS_V3, udp) or, if I force tcp only operation: unable to register (NFS3_PROGRAM, NFS_V3, tcp) Did I miss something in the docs about this - do I need to tweak the portmapper in some way? I notice a script v_portmap on the main host - what exactly does this do (am I a being blind, or do these scripts have no documentation to explain them?) the v_* wrappers on the host are there to restrict the services '*' to some IPs, so that similar services inside the guests could bind to their IPs ... (otherwise they would fail, because the host's service is already bound to that port ...) depending on the portmap, it might be tricky to get it working inside a guest ... HTH, Herbert Once again (and this is the last time this week I'll bother the list), THANKS GW -- / Gary Wilson, aka dragon/dragonlord/dragonv480\ .'(_.--. e: [EMAIL PROTECTED] MSN: dragonv480 .--._)`. _ | Skype:dragonv480 ICQ:342070475 AIM:dragonv480 | _ `.( `--' w: http://volvo480.northernscum.org.uk `--' ).' \w: http://www.northernscum.org.uk / ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Linux Vserver - Feature Question
I would also keep measurements of CPU ticks used. Since IO requires CPU cycles - is it possible that a CPU sched_hard indirectly limits IO just as well? Grisha On Fri, 1 Apr 2005, Matthew Nuzum wrote: On Thu, Mar 31, 2005 at 09:22:10PM -0600, Matthew Nuzum wrote: I think I can create a test case for this. I have a server that is not currently running any vserver stuff that will be ok with a reboot now and then. sounds good, please try to get 1.9.5.5 working there, because it already contains some blkio accounting and it would be very interesting to monitor those values ... (maybe with rrdtools) TIA, Herbert I'm still doing my month-end backup, but when that's done I'll start installing the vserver 1.9.5.5. Here is the test case that seems most logical to me, but advice on how to actually do concrete tests would be useful. 1. Create two vservers (vsa and vsb), start both. 2. In vsa start some heavily i/o intensive operation 3. In vsb try to do some tasks and notice how much i/o bandwidth I have available. Alternative plan: 1. Create 1 vserver and start it 2. In the vserver, start some heavily i/o intensive operation 3. In the host server try to do some tasks and notice how much i/o bandwidth I have available 4. After step 2 completes, in host server start a heavily i/o intensive operation 5. In vserver, try to do some tasks and notice how much i/o bandwidth I have available I have two ideas on heavily i/o intensive operation 1. I have a database with 35 million records. Doing any aggregate function such as max() requires several sequential scans and takes a significant amount of time. 2. Preparing my month end backup requires copying 13 GB of data. Any other suggestions? Question: I have only subjectively noticed a dramatic decrease in server performance when a vserver is performing i/o intensive tasks. How can I objectively measure and produce concrete numbers? -- Matthew Nuzum [EMAIL PROTECTED] www.followers.net - Makers of Elite Content Management System View samples of Elite CMS in action by visiting http://www.followers.net/portfolio/ ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
RE: [Vserver] Linux Vserver - Feature Question
I would also keep measurements of CPU ticks used. Since IO requires CPU cycles - is it possible that a CPU sched_hard indirectly limits IO just as well? Grisha How do you do that? P.S. I'm still compiling the vanilla kernel (I haven't even applied the vserver patch yet). At this rate I'll probably get back to you on Sunday. FYI Pii 350 MHz, 128 MB RAM, Ubuntu 4.1, 120 GB UDMA 133 hard drive. -- Matthew Nuzum [EMAIL PROTECTED] www.followers.net - Makers of Elite Content Management System View samples of Elite CMS in action by visiting http://www.followers.net/portfolio/ ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
RE: [Vserver] Linux Vserver - Feature Question
The CPU ticks are in /proc/virtual/xid/sched Grisha On Fri, 1 Apr 2005, Matthew Nuzum wrote: I would also keep measurements of CPU ticks used. Since IO requires CPU cycles - is it possible that a CPU sched_hard indirectly limits IO just as well? Grisha How do you do that? P.S. I'm still compiling the vanilla kernel (I haven't even applied the vserver patch yet). At this rate I'll probably get back to you on Sunday. FYI Pii 350 MHz, 128 MB RAM, Ubuntu 4.1, 120 GB UDMA 133 hard drive. -- Matthew Nuzum [EMAIL PROTECTED] www.followers.net - Makers of Elite Content Management System View samples of Elite CMS in action by visiting http://www.followers.net/portfolio/ ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] NGnet for vserver 1.9.5 ?
On Friday 01 April 2005 17:37, Herbert Poetzl wrote: On Fri, Apr 01, 2005 at 03:16:40PM +0200, Benedikt Boehm wrote: On Friday 01 April 2005 13:51, Bert De Vuyst wrote: Hello, Did enyone get NGnet running on vserver 1.9.5? Best regards, http://distfiles.gentoo.org/distfiles/vspatches-1.9.5-00.tar.bz2 contains ngnet 9.4 against 1.9.5 interesting! who did the forward port? /me TIA, Herbert Bert. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- He who asks a question is a fool for a minute, He who doesn't ask is a fool for a lifetime. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- He who asks a question is a fool for a minute, He who doesn't ask is a fool for a lifetime. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] NGnet for vserver 1.9.5 ?
On Sat, Apr 02, 2005 at 01:02:04AM +0200, Benedikt Boehm wrote: On Friday 01 April 2005 17:37, Herbert Poetzl wrote: On Fri, Apr 01, 2005 at 03:16:40PM +0200, Benedikt Boehm wrote: On Friday 01 April 2005 13:51, Bert De Vuyst wrote: Hello, Did enyone get NGnet running on vserver 1.9.5? Best regards, http://distfiles.gentoo.org/distfiles/vspatches-1.9.5-00.tar.bz2 contains ngnet 9.4 against 1.9.5 interesting! who did the forward port? /me ah, well, then it's fine (case closed ;) thanks, Herbert TIA, Herbert Bert. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- He who asks a question is a fool for a minute, He who doesn't ask is a fool for a lifetime. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- He who asks a question is a fool for a minute, He who doesn't ask is a fool for a lifetime. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
