Re: gcc-4.5-RH in F14

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On Fri, Jul 09, 2010 at 11:36:04AM -0400, David Malcolm wrote:
> Python has a benchmarking suite that tries to reflect real-world
> workloads, and I've filed
> https://bugzilla.redhat.com/show_bug.cgi?id=613045
> "RFE: Add profile guided optimization to our builds of Python 2"
> and https://bugzilla.redhat.com/show_bug.cgi?id=613046
> "RFE: Add profile guided optimization to our builds of Python 3"
> 
> Help doing this for Python would be welcome, though it may be better to
> focus on python3 for now, until after the 2.6 to 2.7 transition is done.

Thanks.  Googling for %cflags_profile_generate (something OpenSUSE uses
in spec files using PGO) reveals that at least bash, openssl, gawk
use PGO in their distro, guess e.g. grep, sed or even rpm would be
other useful packages for start.
Say for bash it is a matter of doing
make CFLAGS="%{optflags} -fprofile-generate" all
make ... check
make CFLAGS="%{optflags} -fprofile-use" all
(for some packages might require some minor makefile changes or something
similar).

	Jakub
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