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    SubjectRe: Ext2 directory index, updated
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    Daniel Phillips <phillips@bonn-fries.net> writes:

    > On November 4, 2001 11:09 pm, Christian Laursen wrote:
    > > Daniel Phillips <phillips@bonn-fries.net> writes:
    > >
    > > > ***N.B.: still for use on test partitions only.***
    > >
    > > It's the first time, I've tried this patch and I must say, that
    > > the first impression is very good indeed.
    > >
    > > I took a real world directory (my linux-kernel MH folder containing
    > > roughly 115000 files) and did a 'du -s' on it.
    > >
    > > Without the patch it took a little more than 20 minutes to complete.
    > >
    > > With the patch, it took less than 20 seconds. (And that was inside uml)
    >
    > Which kernel are you using?

    Actually, it was on a 2.2.20 kernel.

    > From 2.4.10 on ext2 has an accelerator in
    > ext2_find_entry - it caches the last lookup position. I'm wondering how that
    > affects this case.

    >From the description I read a while ago, I believe it could cause a significant
    speedup.

    I'll have to try that out one of these days.

    --
    Best regards
    Christian Laursen
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