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SubjectRe: inode cache, dentry cache, buffer heads usage
On Wed, Mar 09, 2005 at 10:55:58AM -0800, Badari Pulavarty wrote:
> Hi,
>
> We have a 8-way P-III, 16GB RAM running 2.6.8-1. We use this as
> our server to keep source code, cscopes and do the builds.
> This machine seems to slow down over the time. One thing we
> keep noticing is it keeps running out of lowmem. Most of
> the lowmem is used for ext3 inode cache + dentry cache +
> bufferheads + Buffers. So we did 2:2 split - but it improved
> thing, but again run into same issues.
>
> So, why is these slab cache are not getting purged/shrinked even
> under memory pressure ? (I have seen lowmem as low as 6MB). What
> can I do to keep the machine healthy ?

How does /proc/sys/fs/dentry-state look when you run low on lowmem ?

Thanks
Dipankar
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