On Apr 7, 2011, at 10:34 AM, Andrew Klaassen wrote: > --- On Thu, 4/7/11, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote: > >> On Apr 6, 2011, at 3:25 PM, Andrew Klaassen wrote: >> >>> I have, for now, hacked my way around my problem by >>> splitting the server's uplink into two separate bonds. >>> This seems to have moderated the transaction rate of the HPC >>> farm and allowed the "ls -l" calls to be served at an >>> acceptable rate. >> >> Have you created enough nfsd threads on your Linux NFS >> servers? > > That was one of the things I varied as part of my testing; almost every power of 2 from 8 threads up to 1024 threads. It actually made things slightly worse, not better, but I can certainly give it a try again. Is the server an SMP system? Do you see high CPU load during times of slow performance? -- Chuck Lever chuck[dot]lever[at]oracle[dot]com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html