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Subject: Re: [BENCHMARK] 2.5.47{-mm1} with contest
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Andrew Morton <akpm@digeo.com>, Bill Davidsen <davidsen@tmr.com>,
       Aaron Lehmann <aaronl@vitelus.com>, Con Kolivas <conman@kolivas.net>,
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Date: 21 Nov 2002 01:11:32 +0000
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On Thu, 2002-11-21 at 00:08, William Lee Irwin III wrote:
> Similar things have been reported with 2.4.x vs. 2.2.x and IIRC there
> was some speculation they were due to low-level arch code interactions.
> I think this merits some investigation. I, for one, am a big user of
> SIGIO in userspace C programs...

FSAVE v FXSAVE is one of the reasons for the 2.2/2.4 shift


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