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Subject: Re: Why does C3 CPU downgrade in kernel 2.4.20?
From: Daniel Egger <degger@fhm.edu>
To: Dave Jones <davej@codemonkey.org.uk>
Cc: Joseph <jospehchan@yahoo.com.tw>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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	 <20021210055215.GA9124@suse.de>
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Am Die, 2002-12-10 um 06.52 schrieb Dave Jones:

> I believe someone (Jeff Garzik?) benchmarked gcc code generation,
> and the C3 executed code scheduled for a 486 faster than it did for
> -m586
> I'm not sure about the alignment flags. I've been meaning to look
> into that myself...

Interesting. I have no clue about which C3 you're talking about here but
a VIA Ezra has all 686 instructions including cmov and thus optimising=20
for PPro works best for me.

Prolly I would have to do more benchmarking to find out about aligment
advantages.

--=20
Servus,
       Daniel

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