linux-kernel - Re: Network slowdown due to CFS

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Message-ID: <20070926100859.GJ3337@deprecation.cyrius.com>
Date:	Wed, 26 Sep 2007 12:08:59 +0200
From:	Martin Michlmayr <tbm@...ius.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Network slowdown due to CFS

* Ingo Molnar <mingo@...e.hu> [2007-09-26 11:47]:
> > this will gather a good deal of info about the workload in question. 
> > Please send me the resulting debug file.
> Another thing: please also do the same with the vanilla v2.6.22 kernel, 
> and send me that file too. (so that the two cases can be compared)

I put the log files here:
http://www.cyrius.com/tmp/2.6.22
http://www.cyrius.com/tmp/2.6.23-rc8-sched-devel

I increased the time ipfer ran to 30 secs since your script runs for
over 15 secs.  I got:

[  3]  0.0-30.0 sec    331 MBytes  92.6 Mbits/sec   2.6.22
vs
[  3]  0.0-30.0 sec    222 MBytes  62.1 Mbits/sec   2.6.23-rc8-sched-devel

-- 
Martin Michlmayr
http://www.cyrius.com/
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