Re: New (now current development process)

[Adrian Bunk <bunk@stusta.de>]

On Wed, Nov 02, 2005 at 12:48:52PM -0500, Dave Jones wrote:
> On Wed, Nov 02, 2005 at 07:54:04AM -0800, Linus Torvalds wrote:
> 
>  > > For your last suggestion, maybe someone can automate running Andi's
>  > > bloat-o-meter?  I think the hard part is maintaining comparable configs.
>  > 
>  > Yes. And we should probably make -Os the default. Apparently Fedora 
>  > already does that by just forcibly hacking the Kconfig files.
> 
> (excuse any typos, this wireless connection is god-awful)
> We do. We rip out the dependancyon CONFIG_EMBEDDED, and build
> with OPTIMISE_FOR_SIZE set. At least we usually do.
> Once every so often, we hit something which throws a spanner
> in the works, like the "x86-64 doesn't boot any more" problem
> that was fixed by the patch that Alexandre posted earlier
> this week.
> 
> Most of the time now, when we hit bugs with -Os, it seems to be due
> to broken asm constraints in the kernel rather than actual
> gcc bugs, but of course, they also occur from time to time,
> whereas the same code works just fine with -O2.
> I think part of th reason for this is exactly because it
> doesn't get a great deal of testing.

Is the usage of -Os in Fedora based on actual measurements?

> 		Dave

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