X-pop3-spooler:	POP3MAIL 2.1.0 b 4 980420 -bs-
Delivered-To:	pcg AT goof DOT com
Date:	Fri, 15 May 1998 09:28:17 +0200 (CEST)
From:	Mailing lists account <linux AT windows95 DOT sucks DOT eu DOT org>
X-Sender:	linux AT k6 DOT bero
To:	"Philip I. Long" <plong AT mitre DOT org>
cc:	beastium-list AT Desk DOT nl
Subject:	Re: PGCC for i686 core (I'm not on list)
In-Reply-To:	<9805142254.AA29288@mail90.mitre.org>
Message-ID:	<Pine.LNX.3.96.980515092652.443B-100000@k6.bero>
MIME-Version:	1.0
Sender:	Marc Lehmann <pcg AT goof DOT com>
Status:	RO
Lines:	27

On Thu, 14 May 1998, Philip I. Long wrote:

> 1-Your project seems targeted to the 586 core.  I am concerned 
> with 686 performance. Will code optimized for the 586 core also be 
> optimized for the 686 core?

Sure - pgcc can optimize specifically for PPro/K6.

>  (Pentium II specifically if that makes a difference).

Haven't tried, but I'd say PPro or K6 optimization should work best for
the P2.

> 2-How well does PGCC do with the 6th generation intel processors 
> compared to GCC 2.8.1 with -O2[3] -march=PentiumPro?

Expect about 10-15% gain.

LLaP
bero
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