[torqueusers] performance problem on x86_64

wightman at clusterresources.com wightman at clusterresources.com
Thu Oct 6 19:07:51 MDT 2005


Here's my output (I added 'date +%s'):

1
1128654681
2
1128654681
3
1128654681
4
1128654681
5
1128654681
6
1128654681
7
1128654681
8
1128654681
9
1128654681
10
1128654681

wightman at moo:~$ uname -m
x86_64

OSX had some problems with this code so I wouldn't be surprised if it was 
your Linux distribution.

- Douglas

On Thu, 6 Oct 2005, Garrick Staples wrote:

> On Thu, Oct 06, 2005 at 03:39:17PM -0600, Wightman alleged:
>> Although my own system is MUCH smaller, it is x86_64 (mix of debian and
>> fedora).  I see no slowdown at all with any client commands. (our other
>> x86_64 systems include fedora4 and centos4...no reports of slowdown).
>
> Thanks for looking into it.  Can you try something more diabolical?
> Don't do this against a real pbs_server:
>
> while :;do  for a in `seq 1 10`;do pbs_iff -t hpcjr 15001 && echo $a;done; sleep 1;done
>
> You should see it print 1 through 10 instantly, sleep 1 second, and
> loop.  On 64bit clients, it takes several seconds to get through the
> first 10.
>
>


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