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Date: Mon, 5 Nov 2001 09:48:16 +0200
From: Ville Herva <vherva@niksula.hut.fi>
To: Daniel Phillips <phillips@bonn-fries.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Ext2 directory index, updated
Message-ID: <20011105094816.E26218@niksula.cs.hut.fi>
In-Reply-To: <20011104022659Z16995-4784+750@humbolt.nl.linux.org> <m3hesatcgq.fsf@borg.borderworlds.dk> <20011105014225Z17055-18972+38@humbolt.nl.linux.org>
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In-Reply-To: <20011105014225Z17055-18972+38@humbolt.nl.linux.org>; from phillips@bonn-fries.net on Mon, Nov 05, 2001 at 02:43:28AM +0100
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On Mon, Nov 05, 2001 at 02:43:28AM +0100, you [Daniel Phillips] claimed:
>
> 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.

Is that the same optimization Ted T'so implemented for ext3 around 0.9.10? I
thought it hadn't been ported the ext2...

BTW, I assume the ext2 dir index patch is roughly equivalent to FreeBSD
dirhash and the the other patch resembles theFreeBSD dirperf patch?
Have you looked at them? [http://www.osnews.com/story.php?news_id=153]


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