Le 11/09/2013 17:10, Andrew Deason a écrit :
On Tue, 10 Sep 2013 20:07:46 +0200
Jean-Marc Choulet <[email protected]> wrote:
For how long does it use 80% cpu?
Every 10 seconds
How long : about 10 seconds
Every 10 seconds for 10 seconds? ...is it always using a lot of cpu,
then?
Yes
But anyway, if any kind of 10-second-related pattern appears, I assume
it's the sync() thing, and upgrading to squeeze-backports is probably
the easiest way to fix that. If you want to be more sure, run 'strace'
on the fileserver process when you think it's idle. You should see it
appear to hang on sync(). Something like:
strace -f -p <fileserver_pid>
You'll see some other stuff going on, too, probably, even if the server
isn't doing anything useful. But I don't think that version has _too_
much going on when it's idle, so you should be able to just see the
sync() calls by looking at it.
Last night we did the upgrade to squeeze backports. Everything works
fine now.
Thank you for your help.
Jean-Michel
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