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Message-ID:	<19981122214624.C8362@cerebro.laendle>
Date:	Sun, 22 Nov 1998 21:46:24 +0100
From:	Marc Lehmann <pcg AT goof DOT com>
To:	Jonathan Mark Brooks <jmbrooks AT bigfoot DOT com>, Michael Kunze <mkunze AT ivw DOT de>
Cc:	beastium-list AT desk DOT nl
Subject:	Re: gzip SLOWER with pgcc 1.1?
Mail-Followup-To:	Jonathan Mark Brooks <jmbrooks AT bigfoot DOT com>,
	Michael Kunze <mkunze AT ivw DOT de>, beastium-list AT desk DOT nl
References:	<365822D3 DOT D2589178 AT ivw DOT de> <36583004 DOT EBC1AE13 AT bigfoot DOT com>
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In-Reply-To:	<36583004.EBC1AE13@bigfoot.com>; from Jonathan Mark Brooks on Sun, Nov 22, 1998 at 10:38:44AM -0500
X-Operating-System:	Linux version 2.1.129 (root AT cerebro) (gcc version pgcc-2.92.21 19981109 (gcc2 ss-980609 experimental))
Status:	RO
Lines:	25

On Sun, Nov 22, 1998 at 10:38:44AM -0500, Jonathan Mark Brooks wrote:
> Mind you, this is for c++ source code.  There is no -O6 for c source
> that I'm aware of.  My impression was that the max was -O3 for c
> source.

No, for pgcc, -O6 is better than -O3 with any language. Even with stock
gcc or egcs, everything higher than -O3 is treated as if it
were -O3.

> Would having -O6 to compile c source have the effect of turning off
> optimization since there isn't an -O6 level?  Could this be Michael's
> problem?

No. What machine does he use? Also, gzip optionally can use x86 assembly
code that comes with it, and turning it off (or on) often makes a
difference. The question is how suse have compiled their binary, and unless
you know this, speed comparisons are not feasible.

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      ---==---(_)__  __ ____  __       Marc Lehmann       +--
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    The choice of a GNU generation                        |
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