Gregory Maxwell (gmaxwell@xxxxxxxxx) said: > Is dropping hardware worth this instruction? I suggested some > benchmarking and demonstrated that it's a very small improvement for > Theora. I'm not sure if anyone got around to testing freetype, > firefox, or any of the other couple CPU heavy desktop apps. > > It would probably be most interesting to perform that test on the > x86-only ATOM, since I can see CMOV being a bigger win on an in-order > CPU. > > (I can't personally protest: I think all the x86 stuff I have has CMOV). Last time I profiled it (using the bits of openbench that actually worked), i586 -> i686 was an improvement of 1% (Core2Duo) to 2% (Atom). Athlon64 was essentially equal. SPECCPU results showed similar. Bill -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
