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    SubjectRe: dentry cache leak? Re: rsync out of memory 2.6.8-rc2
    Klaus Dittrich wrote:

    > Jan-Frode Myklebust wrote:
    >
    >> On Mon, Jul 26, 2004 at 11:39:34PM +0200, Klaus Dittrich wrote:
    >>
    >>
    >>>>> cat /proc/sys/vm/vfs_cache_pressure shows 100.
    >>>>>
    >>>>
    >>
    >> What about trying to increase the vfs_cache_pressure which seemed
    >> to solve what to me looks like a similar problem:
    >>
    >> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2m9Oo-Oo-17%40gated-at.bofh.it&rnum=1&prev=/groups%3Fhl%3Den%26ie%3DUTF-8%26safe%3Doff%26q%3Djan%2Bfrode%2Boom%2Bdsmc%26spell%3D1
    >>
    >>
    >> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2mdfi-3cC-11%40gated-at.bofh.it&rnum=2&prev=/groups%3Fq%3Djanfrode%2Boom%2Bdsmc%26ie%3DUTF-8%26hl%3Den%26btnG%3DGoogle%2BSearch
    >>
    >>
    >>
    >> -jf
    >>
    >>
    > I did a test with a value of 500. echo 500 >
    > /proc/sys/vm/vfs_cache_pressure.
    >
    > The highest numbers a cat /proc/sys/fs/dentry-state then showed during
    > a du -s were
    > 780721 750505 45 0 0 0
    >
    > The system survied. No processes were killed.
    >
    > With vfs_cache_pressure=100 a cat /proc/sys/fs/dentry-state showed
    > numbers of about 1090000 before processes got killed.
    >
    > Hope that helps to narrow the region to look for what has changed.
    >
    PS. Two concurrent du -s however "kernel: Out of Memory: Killed process .."
    -
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