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Date: Sat, 15 Feb 2003 04:01:06 -0800
From: William Lee Irwin III <wli@holomorphy.com>
To: Rik van Riel <riel@imladris.surriel.com>
Cc: Mike Galbraith <efault@gmx.de>, Jens Axboe <axboe@suse.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] CFQ scheduler, #2
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On Sat, Feb 15, 2003 at 09:49:15AM -0200, Rik van Riel wrote:
> pgscan             2751953        5328260  <== ? hmm
> kswapd_steal        380282         522126
> pageoutrun            1107           1956
> allocstall            3472           1238

$ echo $(( 5328260/1956.0 ))       
2724.0593047034763
$ echo $(( (5328260/1956.0)*4 ))
10896.237218813905

That's 2724 pages or 11MB scanned per pageout run. Order-of-magnitude
better ratio for pages stolen per pageout run. Wouldn't mind seeing a
patch that improves this.


-- wli
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