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From: Andrew Morton <akpm@digeo.com>
To: Con Kolivas <conman@kolivas.net>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [BENCHMARK] 2.5.43-mm2 with contest
Date: Thu, 17 Oct 2002 01:01:39 -0700	[thread overview]
Message-ID: <3DAE6E63.EFAF0F80@digeo.com> (raw)
In-Reply-To: <1034840438.3dae6976a93fb@kolivas.net>

Con Kolivas wrote:
> 
> Here are the updated benchmarks with contest v0.51 (http://contest.kolivas.net)
> showing the change from -mm1 to -mm2. Other results removed for clarity.
> 
> noload:
> Kernel [runs]           Time    CPU%    Loads   LCPU%   Ratio
> 2.4.18 [3]              71.8    93      0       0       1.01
> 2.5.43 [2]              74.6    92      0       0       1.04
> 2.5.43-mm1 [4]          74.9    93      0       0       1.05
> 2.5.43-mm2 [2]          73.4    93      0       0       1.03

Would be interesting to run

	blockdev --setra 1024 /dev/hdXX

here.  We're getting more idle time with 2.5 and that can only
be due to disk wait - the IO scheduler changes.  This might make a
small difference.

> ...
> Removal of per-cpu pages patch does not seem to have been detrimental to contest
> benchmarks at least - perhaps this is responsible for the noload being better now?

Well that code is still there.  I'd expect a very small benefit from it
in this testing.

  reply	other threads:[~2002-10-17  7:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-17  7:40 Con Kolivas
2002-10-17  8:01 ` Andrew Morton [this message]
2002-10-17 10:56   ` Con Kolivas

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