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Date: Thu, 19 Sep 2002 07:46:18 -0700
From: "Martin J. Bligh" <mbligh@aracnet.com>
Reply-To: "Martin J. Bligh" <mbligh@aracnet.com>
To: Daniel Phillips <phillips@arcor.de>,
       Paolo Ciarrocchi <ciarrocchi@linuxmail.org>,
       linux-kernel@vger.kernel.org
cc: Andrew Morton <akpm@digeo.com>
Subject: Re: [chatroom benchmark version 1.0.1] Results
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>> And now the results:
>> 2.4.19-ck7.results:Average throughput : 55928 messages per second
>> 2.4.19.results:Average throughput : 44851 messages per second
>> 2.5.33.results:Average throughput : 59522 messages per second
>> 2.5.34.results:Average throughput : 62941 messages per second
>> 2.5.36.results:Average throughput : 60858 messages per second
>> 
>> 2.4.19-ck7 is preemption ON
>> 2.5.33 and 2.5.34 are preemption ON
>> 2.5.36 is preemption OFF (Robert, 2.5.36 with preemption ON oops at boot)
>
> There's also some kind of hint that preemption improves throughput
> here.

Any chance of doing two runs on exactly the same kernel, one with 
preempt on, and the other with preempt off? That's a much nicer 
hint ;-)

M.