linux-kernel - Performance regression in 2.6.22-git1 (new sched code?)

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Message-ID: <4693C3D2.9020005@mbligh.org>
Date:	Tue, 10 Jul 2007 10:37:22 -0700
From:	Martin Bligh <mbligh@...igh.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Ingo Molnar <mingo@...e.hu>
Subject: Performance regression in 2.6.22-git1 (new sched code?)

~ 1% on 4-way x86_64

http://test.kernel.org/perf/kernbench.elm3b6.png

~ 4% on 16-way NUMA-Q (i386)

http://test.kernel.org/perf/kernbench.moe.png

~ 1.5% on 4-way i386

http://test.kernel.org/perf/kernbench.elm3b132.png

There's readprofiles and stuff available from here:
http://test.kernel.org/functional/index.html
if you drill down under the tests marked "regression", eg.
http://test.kernel.org/abat/98796/002.kernbench.test/profiling/profile.text

M.
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