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SubjectRe: Strange dcache memory pressure when highmem enabled
On Tuesday October 14, bos@serpentine.com wrote:
> On Tue, 2003-10-14 at 21:33, Neil Brown wrote:
>
> > I have a fairly busy NFS server which has been having performance
> > problems lately. I have managed to work around the problems, but
> > would really like to get the root problem fixed.
>
> Funny, I have seen exactly the same problem, though with a Red Hat
> 2.4.20 kernel, rather than a vanilla-ish 2.4.
>
> I have a few thousand more entries in my dentry cache on a 2G machine,
> but it's still a pitiful number.
>
> What workarounds did you find?

I just boot with "mem=900M" and effectively removed the highmem.
It's not ideal, but it is the best I have found.

NeilBrown
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