> Andi Gutmans wrote: > I think it's a nice idea but I doubt it's very useful at this point. It > doesn't seem to significantly affect performance, which is ... <snip>
I concur. Instead of guessing branch probabilities, why not measure them? http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Optimize-Options.html -fprofile-generate -freorder-functions -fbranch-probabilities -fprofile-use I've seen decent speedups (5-10%) using these options on my own programs. Leon -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
