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Message-ID: <403C170B.7020207@cyberone.com.au>
Date: Wed, 25 Feb 2004 14:31:23 +1100
From: Nick Piggin <piggin@cyberone.com.au>
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To: Con Kolivas <kernel@kolivas.org>
CC: linux-kernel@vger.kernel.org, Cliff White <cliffw@osdl.org>,
       Andrew Morton <akpm@osdl.org>
Subject: Re: reaim - 2.6.3-mm1 IO performance down.
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Con Kolivas wrote:

>
>>Running the reaim 'new_fserver' workload, we now see a performance drop on
>>2.6.3-mm1, ext3 filesystem
>>
>
>I observed a serious slowdown on non numa, non smt machines with kernbench and
>the scheduler changes (posted results a week ago here:
>http://marc.theaimsgroup.com/?l=linux-kernel&m=107719112225482&w=2 )
>
>A summary of those results is half job load (-j4 on 8x):
>2.6.3: Elapsed Time 231.274
>2.6.3-mm1: Elapsed Time 273.688
>
>The drop in reaim performance is possibly related.
>
>

I have been meaning to look at that. The STP wasn't working
for me for a couple of days, but Cliff fixed that so I'll get
on it.