NFS Performance (was Re: [Beowulf] GPFS on Linux (x86))
csamuel at vpac.org
Wed Nov 8 18:51:45 PST 2006
On Tuesday 19 September 2006 19:55, Krugger wrote:
> Could it be that you are getting timeouts because you don't have
> enough nfsd daemons. This only might happen under heavy I/O load. And
> when there are thousands of operations floading the server sometimes
> it just has to drop some off the queue when the queue get full.
I had the number of NFS daemons up to around 128 at one point. That only
succeeded in getting us a load average of 90+ with them all sitting around in
FC3 with XFS worked just fine with the standard number of daemons.
Chris (catching up on old email)
Christopher Samuel - (03)9925 4751 - VPAC Deputy Systems Manager
Victorian Partnership for Advanced Computing http://www.vpac.org/
Bldg 91, 110 Victoria Street, Carlton South, VIC 3053, Australia
More information about the Beowulf