Re: kernel optimization

[christos gentsis]

Adrian Bunk wrote:

> 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
>
>  
so if i want to play with and see what happens i have to change it 
manually in each make file... good i may create a kernel like that to 
see what will happens (just for test) ;)

thanks
Chris

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