Re: pdflush eating a lot of CPU on heavy NFS I/O

[Phy Prabab]

If you guys could please either cc or keep this on the
mailing list I would greatly appreciate it.  I am
currently planning to deploy a dual Xeon FS with
2.6.5+akpm-mm6 and would like to know what the issue
is that Brent is seeing.

Thanks!

--- Andrew Morton <akpm@xxxxxxxx> wrote:
> Brent Cook <busterbcook@xxxxxxxxx> wrote:
> >
> >   Running any kernel from the 2.6.6-rc* series
> (and a few previous
> >  -mm*'s),
> 
> It's a shame this wasn't reported earlier.
> 
> > the pdflush process starts using near 100% CPU
> indefinitely after
> >  a few minutes of initial NFS traffic, as far as I
> can tell.
> 
> Please confirm that the problem is observed on the
> NFS client and not the
> NFS server?  I'll assume the client.
> 
> What other filesystems are in use on the client?
> 
> Please describe the NFS mount options and the number
> of CPUs and the amount
> of memory in the machine.  And please send me your
> .config, off-list.
> 
> Thanks.
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