glibc recompile - optimized for G5 cpu target
Hi,
This has been playing in my mind for a while and wondering if i could
get some feedback from others.
I assume glibc typically available in the Debian repo's has been
compiled for a generic ppc32 target and the ricer in me wants to try and
extract some more performance.
If i were to recompile glibc and target it for a G5 cpu with
optimizations (i.e. o3, altivec, etc, etc), do you think there could be
much benefit in terms of improved general performance and responsiveness
of a typical desktop install of Debian on PPC?
Perhaps this is more a question of is the latest gcc available in Debian
testing able to improve performance of glibc if compiled specifically
for G5 target (-n32 i assume) instead of a generic ppc32 target (which i
assume is typically what Debian packages are compiled for).
I have found a guide which obviously was originally for intended for
x86, but could be a starting point as an experiment for myself.
Link below:
http://notes.ponderworthy.com/rebuild-glibc-optimized-for-your-cpu-in-debian-testing-as-a-local-package-version
I realize this is pretty risky and i stand a good chance of hosing my
install but just wondering if others had some experience attempting this
possibly before i waste my time.
Just as equally as i stand a chance of hosing my install, i guess it can
also perform worse than or be unstable. Who knows?
I know, this is more a Gentoo thing and unsupported (just as unsupported
as custom kernels on Debian).
Looking for advice if you think this is worthwhile! At minimum, it would
be a good learning experience for myself.
Regards,
Peter
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