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Message-ID: <43F15211.2090206@yahoo.com.au>
Date: Tue, 14 Feb 2006 14:44:17 +1100
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: Andrew Morton <akpm@osdl.org>
CC: "Chen, Kenneth W" <kenneth.w.chen@intel.com>, mingo@elte.hu,
       linux-kernel@vger.kernel.org
Subject: Re: [patch 0/2] fix perf. bug in wake-up load balancing for aim7
 and db workload
References: <200602140309.k1E394g17590@unix-os.sc.intel.com> <20060213193856.696bf1f0.akpm@osdl.org>
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Andrew Morton wrote:

> 
> 
> Well I don't see any benchmark numbers in the original patch.  Just an
> assertion that it "should" help something.
> 

The regression was in a Ken's commercial database benchmark. I couldn't
reproduce it but presumably it did fix it otherwise Ken would would have
piped up?

> I'm more inclined to revert it and not add the sysctl (ugh) until we have a
> good reason to do so.
> 

If you revert this then Ken's database benchmark gets worse. Hence the
sysctl.

-- 
SUSE Labs, Novell Inc.
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