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Date: Mon, 30 Sep 2002 00:51:39 -0700
From: "Martin J. Bligh" <mbligh@aracnet.com>
Reply-To: "Martin J. Bligh" <mbligh@aracnet.com>
To: Andrew Morton <akpm@digeo.com>, lkml <linux-kernel@vger.kernel.org>,
       "linux-mm@kvack.org" <linux-mm@kvack.org>
cc: Anton Blanchard <anton@samba.org>
Subject: Re: 2.5.39-mm1
Message-ID: <735786955.1033347097@[10.10.2.3]>
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> I must say that based on a small amount of performance testing the
> benefits of the cache warmness thing are disappointing. Maybe 1% if
> you squint.  Martin, could you please do a before-and-after on the
> NUMAQ's, double check that it is actually doing the right thing?

Seems to work just fine:

2.5.38-mm1 + my original hot/cold code.
Elapsed: 19.798s User: 191.61s System: 43.322s CPU: 1186.4%

2.5.39-mm1
Elapsed: 19.532s User: 192.25s System: 42.642s CPU: 1203.2%

And it's a lot more than 1% for me ;-) About 12% of systime
on kernel compile, IIRC.

M.



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