Date: Sun, 8 Sep 2002 09:19:51 -0400
To: jmorris@intercode.com.au
Cc: linux-kernel@vger.kernel.org
Subject: Re: Performance issue in 2.5.32+
Message-ID: <20020908131951.GA25301@rushmore>
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From: rwhron@earthlink.net
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> lmbench shows major changes in context switching latencies 
> on a dual celeron system 

Some lmbench tests vary a lot so I run it 25 times and 
average the results.  Some variations are only apparent on 
particular cpus (cache size differences, smp, etc).

The lmbench averaging script I use is:
http://home.earthlink.net/~rwhron/kernel/lmbsum

lmbench on a quad xeon and a bit on how to use lmbsum:
http://home.earthlink.net/~rwhron/kernel/bigbox.html#lmbench

Recent uniprocessor results:
http://home.earthlink.net/~rwhron/kernel/latest.html#lmbench

-- 
Randy Hron
http://home.earthlink.net/~rwhron/kernel/bigbox.html

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