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: 08 Nov 2001 08:21:39 +0100 [thread overview]
Message-ID: <m3vggliv7g.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.
> >
> 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.
I ran the tests again and got some real numbers this time.
The accelerator should work as normal, when the filesystem is not
mounted with -o index, shouldn't it (Although it's on a kernel
with the directory index patch)?
xi@tam:~/Mail > uname -a
Linux tam 2.4.13-3um #1 Sun Nov 4 14:29:19 CET 2001 i686 unknown
xi@tam:~/Mail > mount
/dev/ubd0 on / type ext2 (rw,index)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
/dev/ubd2 on /mnt/flaf type ext2 (rw)
xi@tam:/mnt/flaf > time du -s linux-kernel/
685652 linux-kernel
real 19m14.689s
user 0m1.650s
sys 23m39.000s
xi@tam:~/Mail > time du -s linux-kernel/
686432 linux-kernel
real 1m8.363s
user 0m5.500s
sys 0m57.350s
--
Best regards
Christian Laursen
next prev parent reply other threads:[~2001-11-08 7:22 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
2001-11-05 23:13 ` Daniel Phillips
2001-11-05 23:45 ` Andreas Dilger
2001-11-08 7:21 ` Christian Laursen [this message]
-- 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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