Re: Ext2 directory index, updated
Daniel Phillips (phillips@bonn-fries.net)
Mon, 5 Nov 2001 02:43:28 +0100
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? 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.
--
Daniel
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