Changing CFLAGS for i386 packages on x86_64(benchmarks included)
Kevin Kofler
kevin.kofler at chello.at
Tue Jul 18 10:42:28 UTC 2006
dragoran <dragoran <at> feuerpokemon.de> writes:
> the last one (-m64) is weird (much slower!!) no -OX was used.
Then your benchmarks are essentially worthless. Sorry, but since GCC defaults
to -O0, which means no optimization whatsoever, i.e. very bad code, you should
NEVER compile production code without an -O flag (generally -O2 or -Os), and
especially not benchmarks!
So please rerun your benchmarks with -O2 to get more useful results.
Kevin Kofler
More information about the fedora-devel-list
mailing list