From: Adrian Bunk <bunk@stusta.de>
To: christos gentsis <christos_gentsis@yahoo.co.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kernel optimization
Date: Fri, 22 Jul 2005 22:14:16 +0200 [thread overview]
Message-ID: <20050722201416.GM3160@stusta.de> (raw)
In-Reply-To: <42E14134.1040804@yahoo.co.uk>
On Fri, Jul 22, 2005 at 07:55:48PM +0100, christos gentsis wrote:
> hello
Hi Chris,
> i would like to ask if it possible to change the optimization of the
> kernel from -O2 to -O3 :D, how can i do that? if i change it to the top
> level Makefile does it change to all the Makefiles?
search for the line with
CFLAGS += -O2
and change this to -O3.
This works for most Makefile's except for the one's that manually
set -Os.
> And let's say that i change it... does this generate any problems with
> the space that the kernel will take? (the kernel will be much larger)
It's completely untested.
And since it's larger, it's also slower.
> Thanks
> Chris
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
next prev parent reply other threads:[~2005-07-22 20:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-22 18:55 kernel optimization christos gentsis
2005-07-22 19:52 ` David Lang
2005-07-22 20:15 ` Adrian Bunk
2005-07-22 20:14 ` Adrian Bunk [this message]
2005-07-22 21:11 ` christos gentsis
2005-07-23 14:34 ` Simon Strandman
2005-07-23 5:35 ` Al Boldi
2005-07-23 6:30 ` cutaway
2005-07-23 19:50 ` Alan Cox
2005-07-23 22:03 ` cutaway
[not found] <200507231849.j6NInMPO003728@laptop11.inf.utfsm.cl>
2005-07-26 5:22 ` Al Boldi
2005-07-26 9:22 ` Adrian Bunk
-- strict thread matches above, loose matches on Subject: below --
2005-07-27 3:53 Al Boldi
2005-07-27 4:20 ` Lee Revell
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