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Date: Sat, 17 Feb 2001 01:51:14 +1100
From: Andrew Morton <andrewm@uow.edu.au>
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To: Tom Sightler <ttsig@tuxyturvy.com>
CC: "Gord R. Lamb" <glamb@lcis.dyndns.org>, linux-kernel@vger.kernel.org
Subject: Re: Samba performance / zero-copy network I/O
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Tom Sightler wrote:
> 
> My testing showed that the lowlatency patches abosolutely destroy a system
> thoughput under heavy disk IO.

I'm surprised - I've been keeping an eye on that.

Here's the result of a bunch of back-to-back `dbench 12' runs
on UP, alternating with and without LL:

With:
	58.725 total
	52.217 total
	51.935 total
	53.624 total
	39.815 total

Without:
	1:16.85 total
	52.525 total
	57.602 total
	41.623 total
	58.848 total

Results on reiserfs are similar.

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