[cairo] Cairo 1.9.2 performance
Paolo Bonzini
bonzini at gnu.org
Sun Jun 28 23:23:54 PDT 2009
Zack Weinberg wrote:
> Clemens Eisserer <linuxhippy at gmail.com> wrote:
>
>>> This is particularly true
>>> for gcc which is not known to produce blazingly fast code anyway
>> Any results to back that claim, otherwise please don't spread fud.
>
> It is certainly true of the code generated at -O0, which doesn't even
> try to keep things in registers.
>
> -O2 and -Os have been competitive with proprietary compilers on a wide
> range of benchmarks for years now. It's worth trying both and seeing
> which works better.
And if you can pinpoint to specific inner loops that MSVC compiles
better than GCC, please report them on GCC's Bugzilla and CC me (hi Zack
:-).
Paolo
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