Re: kernel optimization

[Adrian Bunk <bunk@stusta.de>]

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

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