NFS Performance (was Re: [Beowulf] GPFS on Linux (x86))
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Chris Samuel csamuel at vpac.orgWed Nov 8 18:51:45 PST 2006
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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 device waits. FC3 with XFS worked just fine with the standard number of daemons. cheers, 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
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