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Date:	Tue, 29 Jul 2008 22:04:16 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	kosaki.motohiro@...fujitsu.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, akpm@...ux-foundation.org
Subject: Re: PERF: performance tests with the split LRU VM in -mm

>   TEST 1: dd if=/dev/sda of=/dev/null bs=1M
> 
> kernel  speed    swap used
> 
> 2.6.26  111MB/s  500kB
> -mm     110MB/s  59MB     (ouch, system noticably slower)
> noforce	111MB/s  128kB
> stream  108MB/s  0        (slight regression, not sure why yet)

I tried to reproduce it, my ia64 result was

kernel                   speed        swap used
2.6.26-rc8               49.8MB/s     1M
2.6.26-rc8-mm1           47.6MB/s     168M
-mm with above two patch 50.2MB/s     0


So, I think it isn't regression.



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