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Subject: Re: Compiling 2.2.19 with -O3 flag
To: rml@tech9.net (Robert Love)
Date: Fri, 24 May 2002 16:44:51 +0100 (BST)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox),
        intellectcrew@yahoo.com (samson swanson), linux-kernel@vger.kernel.org
In-Reply-To: <1022253543.962.236.camel@sinai> from "Robert Love" at May 24, 2002 08:19:03 AM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> Or maybe not - not too long ago I did some tests of the various
> optimization options in gcc 2.96 or so and found that -O2 generates
> smaller code in most cases than -Os.  -Os also did not perform as good,
> but I was just testing a few bits of code - nothing as versatile as the
> kernel.

I've done that test with 2.95 and egcs-1.1.2 (its a while back). I've not
check with 2.96, 3.0.4 or 3.1