From: Christian Laursen <xi@borderworlds.dk>
To: Daniel Phillips <phillips@bonn-fries.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Ext2 directory index, updated
Date: 05 Nov 2001 23:59:33 +0100 [thread overview]
Message-ID: <m3n120x1re.fsf@borg.borderworlds.dk> (raw)
In-Reply-To: <20011104022659Z16995-4784+750@humbolt.nl.linux.org> <m3hesatcgq.fsf@borg.borderworlds.dk> <20011105014225Z17055-18972+38@humbolt.nl.linux.org>
In-Reply-To: <20011105014225Z17055-18972+38@humbolt.nl.linux.org>
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
next prev parent reply other threads:[~2001-11-05 22:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-04 2:28 Ext2 directory index, updated Daniel Phillips
2001-11-04 2:44 ` Daniel Phillips
2001-11-04 22:09 ` Christian Laursen
2001-11-04 22:24 ` Daniel Phillips
2001-11-04 22:54 ` Christian Laursen
2001-11-04 23:01 ` Daniel Phillips
2001-11-04 23:09 ` Gábor Lénárt
2001-11-05 22:10 ` Andreas Dilger
2001-11-06 0:38 ` Daniel Phillips
2001-11-05 1:43 ` Daniel Phillips
2001-11-05 7:48 ` Ville Herva
2001-11-05 9:53 ` Daniel Phillips
2001-11-05 22:59 ` Christian Laursen [this message]
2001-11-05 23:13 ` Daniel Phillips
2001-11-05 23:45 ` Andreas Dilger
2001-11-08 7:21 ` Christian Laursen
-- strict thread matches above, loose matches on Subject: below --
2002-03-04 11:03 Ext2 Directory Index, updated Daniel Phillips
2001-11-02 3:36 Ext2 directory index, updated Daniel Phillips
2001-11-02 5:04 ` Andreas Dilger
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