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>
Subject: Re: Why does C3 CPU downgrade in kernel 2.4.20?
Date: 10 Dec 2002 08:22:21 +0100 [thread overview]
Message-ID: <1039504941.30881.10.camel@sonja> (raw)
In-Reply-To: <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
for PPro works best for me.
Prolly I would have to do more benchmarking to find out about aligment
advantages.
--
Servus,
Daniel
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next prev parent reply other threads:[~2002-12-10 7:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-10 4:02 Why does C3 CPU downgrade in kernel 2.4.20? Joseph
2002-12-10 5:52 ` Dave Jones
2002-12-10 7:22 ` Daniel Egger [this message]
2002-12-10 7:24 ` Dave Jones
2002-12-10 7:53 ` Daniel Egger
2002-12-10 12:40 ` Juan Quintela
2002-12-10 15:40 ` Daniel Egger
2002-12-10 16:51 ` Alan Cox
2002-12-10 19:39 ` Daniel Egger
2002-12-10 20:17 ` Jeff Garzik
2002-12-10 21:24 ` Alan Cox
2002-12-11 18:51 ` Bill Davidsen
2002-12-11 19:14 ` Dave Jones
2002-12-11 19:42 ` Jeff Garzik
2002-12-11 19:51 ` Joel Jaeggli
2002-12-12 9:17 ` Joseph
2002-12-12 13:33 ` Dave Jones
2002-12-13 6:55 ` Joseph
2002-12-13 11:04 ` Daniel Egger
2002-12-13 11:57 ` Dave Jones
2002-12-11 21:00 ` Alan Cox
2002-12-12 10:19 ` P
2002-12-11 13:19 ` Denis Vlasenko
2002-12-11 10:58 ` Dave Jones
2002-12-11 19:09 ` Denis Vlasenko
2002-12-11 14:59 ` Dave Jones
2002-12-12 18:09 ` Pavel Machek
2002-12-14 16:46 ` Denis Vlasenko
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