[torqueusers] Slow response of torque when jobs are running

Garrick Staples garrick at usc.edu
Mon Dec 7 18:52:35 MST 2009


On Tue, Dec 08, 2009 at 01:39:38AM +0000, Luc Vereecken alleged:
> Hi Chris,
> 
> I attach a strace -T output of qstat. The output looked like a normal 
> qstat output with jobnumbers and running times etc, so nothing special 
> there.
> The strace reveals that it all goes awry when accessing the 
> /tmp/.torque-unix. Major time is lost on a poll (line 78) and a read 
> (line 90), all other times look like normal timings.
> 
> That reminds me that there is something like a no-unix-sockets option 
> in configure, iirc.

What you want is an strace of the _server_ while doing a qstat.

qstat is just going to wait for a response from the server. Your strace shows
exactly that.

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