Re: [Vserver] using of 'vlimit --cpu', problems with 'gcc'
On Mon, Oct 30, 2006 at 03:34:28PM +0100, Rik Bobbaers wrote: Jaroslav Tomecek wrote: I'm testing 'vserver' for some organisation. They want me to test everything ;-). Btw. I tried cpu scheduling. I set 1/5 of cpu for the first and 4/5 of cpu for the second 'vserver'. Then I ran two identical programs, each in one 'vserver'. It computed some floating stuff. After each e.g. 1000 cycles it printed dot. I expected that there would be five times more dots in the second vserver after some time. But the numbers of dots were identical. # cat /etc/vservers/test1/schedule 1 5 100 200 10 dummy # cat /etc/vservers/test1/schedule 4 5 100 200 10 dummy Is it the right way? it is, but can you do a : cat /etc/vservers/test1/flags ? you should ENABLE the scheduler like this: echo sched_prio /etc/vservers/test1/flags this will enable priority adjusted scheduling then restart your vps'es and see what happens then... you could also do sched_hard which... wel... read the docs ;) while this will give you the 'hard' limits you are looking for ... best, Herbert good luck -- harry aka Rik Bobbaers K.U.Leuven - LUDIT -=- Tel: +32 485 52 71 50 [EMAIL PROTECTED] -=- http://harry.ulyssis.org thinking always leads to conclusions... and those can be extremely dangerous -- me ;) Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm ___ 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] using of 'vlimit --cpu', problems with 'gcc'
On 2006.10.30 14:54:36 +0100, Jaroslav Tomecek wrote:
Hi,
1) I tried '/usr/sbin/vlimit -c 1000 --cpu 30'. It returned:
'vc_set_rlimit(): Invalid argument'
Any idea?
It's probably just not implemented/supported. I didn't check though. But
do you really _want_ that? It would limit your vserver to 30 seconds of
cpu time and kill it after it has used them up.
If you want to limit cpu usage you should rather take a look at vsched.
2) I compiled a program on FC6 using g++ (GCC) 4.1.1 20061011 (Red Hat
4.1.1-30) on host server:
#include iostream
using namespace std;
int main(void)
{
return 0;
}
But in FC5-based vserver 'test' it returned:
'[EMAIL PROTECTED] /]# ./test-programme
Floating point exception'
Maybe a glibc/libstdc++ conflict? No real idea about it... :(
Any idea?
/usr/sbin/vserver --version
vserver 0.30.210 -- manages the state of vservers
This program is part of util-vserver 0.30.210
An upgrade to .211 won't hurt, but it's probably not affecting the above
issues at all.
HTH
Björn
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Re: [Vserver] using of 'vlimit --cpu', problems with 'gcc'
Björn Steinbrink napsal(a):
On 2006.10.30 14:54:36 +0100, Jaroslav Tomecek wrote:
Hi,
1) I tried '/usr/sbin/vlimit -c 1000 --cpu 30'. It returned:
'vc_set_rlimit(): Invalid argument'
Any idea?
It's probably just not implemented/supported. I didn't check though. But
do you really _want_ that? It would limit your vserver to 30 seconds of
cpu time and kill it after it has used them up.
If you want to limit cpu usage you should rather take a look at vsched.
I'm testing 'vserver' for some organisation. They want me to test
everything ;-). Btw. I tried cpu scheduling. I set 1/5 of cpu for the
first and 4/5 of cpu for the second 'vserver'. Then I ran two identical
programs, each in one 'vserver'. It computed some floating stuff. After
each e.g. 1000 cycles it printed dot. I expected that there would be
five times more dots in the second vserver after some time. But the
numbers of dots were identical.
# cat /etc/vservers/test1/schedule
1
5
100
200
10
dummy
# cat /etc/vservers/test1/schedule
4
5
100
200
10
dummy
Is it the right way?
2) I compiled a program on FC6 using g++ (GCC) 4.1.1 20061011 (Red Hat
4.1.1-30) on host server:
#include iostream
using namespace std;
int main(void)
{
return 0;
}
But in FC5-based vserver 'test' it returned:
'[EMAIL PROTECTED] /]# ./test-programme
Floating point exception'
Maybe a glibc/libstdc++ conflict? No real idea about it... :(
Any idea?
/usr/sbin/vserver --version
vserver 0.30.210 -- manages the state of vservers
This program is part of util-vserver 0.30.210
An upgrade to .211 won't hurt, but it's probably not affecting the above
issues at all.
HTH
Björn
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Re: [Vserver] using of 'vlimit --cpu', problems with 'gcc'
Jaroslav Tomecek wrote: I'm testing 'vserver' for some organisation. They want me to test everything ;-). Btw. I tried cpu scheduling. I set 1/5 of cpu for the first and 4/5 of cpu for the second 'vserver'. Then I ran two identical programs, each in one 'vserver'. It computed some floating stuff. After each e.g. 1000 cycles it printed dot. I expected that there would be five times more dots in the second vserver after some time. But the numbers of dots were identical. # cat /etc/vservers/test1/schedule 1 5 100 200 10 dummy # cat /etc/vservers/test1/schedule 4 5 100 200 10 dummy Is it the right way? it is, but can you do a : cat /etc/vservers/test1/flags ? you should ENABLE the scheduler like this: echo sched_prio /etc/vservers/test1/flags then restart your vps'es and see what happens then... you could also do sched_hard which... wel... read the docs ;) good luck -- harry aka Rik Bobbaers K.U.Leuven - LUDIT -=- Tel: +32 485 52 71 50 [EMAIL PROTECTED] -=- http://harry.ulyssis.org thinking always leads to conclusions... and those can be extremely dangerous -- me ;) Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
