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From: Joe Korty <joe.korty@ccur.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Adrian Bunk <bunk@fs.tum.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [2.6 patch] add an -Os config option
Date: Tue, 12 Aug 2003 11:45:36 -0400	[thread overview]
Message-ID: <20030812154535.GA5686@tsunami.ccur.com> (raw)
In-Reply-To: <1060695341.21160.2.camel@dhcp22.swansea.linux.org.uk>

On Tue, Aug 12, 2003 at 02:35:41PM +0100, Alan Cox wrote:
> On Llu, 2003-08-11 at 22:11, Adrian Bunk wrote:
>> +	  Enabling this option will pass "-Os" instead of "-O2" to gcc
>> +	  resulting in a smaller kernel.
>> +
>> +	  The resulting kernel might be significantly slower.
> 
> With most of the gcc's I tried -Os was faster.

Because of a better L1-instruction cache footprint?

Joe

  reply	other threads:[~2003-08-12 15:45 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-11 21:11 [2.6 patch] add an -Os config option Adrian Bunk
2003-08-11 21:19 ` Michael Buesch
2003-08-11 21:37   ` Mike Fedyk
2003-08-11 21:39   ` Christophe Saout
2003-08-11 21:41   ` Dagfinn Ilmari Mannsåker
2003-08-12  1:29   ` Gene Heskett
2003-08-12  2:51     ` Thomas Molina
2003-08-12  4:14       ` [OT] " Steven Cole
2003-08-12 15:25         ` Timothy Miller
2003-08-12 14:48       ` Gene Heskett
2003-08-12 10:11     ` Michael Buesch
2003-08-12 14:42       ` Gene Heskett
2003-08-12  1:45   ` Warren Turkal
2003-08-11 22:20 ` Russell King
2003-08-12  7:06 ` Christoph Hellwig
2003-08-12 15:43   ` Timothy Miller
2003-08-12 15:58     ` Adrian Bunk
2003-08-12 16:03     ` Kevin P. Fleming
2003-08-12 13:35 ` Alan Cox
2003-08-12 15:45   ` Joe Korty [this message]
2003-08-12 18:03   ` Timothy Miller
2003-08-12 19:43 John Bradford

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