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Message-ID: <47B21D13.5060700@hp.com>
Date: Tue, 12 Feb 2008 17:26:27 -0500
From: "Alan D. Brunelle" <Alan.Brunelle@hp.com>
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To: "Alan D. Brunelle" <Alan.Brunelle@hp.com>
Cc: linux-kernel@vger.kernel.org, Jens Axboe <jens.axboe@oracle.com>,
       npiggin@suse.de, dgc@sgi.com, arjan@linux.intel.com
Subject: Re: IO queueing and complete affinity w/ threads: Some results
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Alan D. Brunelle wrote:

> 
> Hopefully, the first column is self-explanatory - these are the settings applied to the queue_affinity, completion_affinity and rq_affinity tunables. Due to the fact that the standard deviations are so large coupled with the very close average results, I'm not seeing anything in this set of tests to favor any of the combinations...
> 

Note quite:

Q or C = 0 really means Q or C set to -1 (default), Q or C = 1 means placing that thread on the CPU managing the IRQ. Sorry... 

<sigh>
Alan
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