Bug#408959: libc6: powerpc optimization patch

[Aurelien Jarno <aurelien@aurel32.net>]

marmodoro@libero.it a écrit :
> Package: libc6
> Version: 2.3.6.ds1-10
> Severity: wishlist
> 
> Stumbling across the patch offered at
> http://penguinppc.org/dev/glibc/glibc-powerpc-cpu-addon.html
> 
> further discussed, for example, at
> http://www.power.org/forums/viewtopic.php?t=262&start=0&postdays=0&postorder=asc&highlig
> ht=&sid=e3b448b81cbcb798efb123526f511cf3
> 
> it would seem to make lot of sense to introduce such a patch to Debian unstable libc6, thus helping building up community and feedback for official inclusion upstream.
> 
> I am giving it a try via apt-build, and I'd be grateful for any feedback.

This means creating a new flavour for the glibc on powerpc. This implies
longer build time, writing some code (the current patch does not add
runtime CPU detection), etc. This only make sense if the performance
improvements are significative for a normal use.

Could you please provide some benchmarks?

Thanks,
Aurelien

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