Carsten Haitzler (The Rasterman) wrote: >if you are on x86 you want to stick to gcc 3.x - 4.x has shown a good 10% drop >in speed consistently in benchmarks comapred to 3.3 and 3.4 (same optimisation >options - highest level for my cpu - a p4): -O2 -march=pentium4 >-fomit-frame-pointer that will give best results for p4's i have found but on >4.x its 10% slower than 3.x - with -O0 (no optimisation at all) gcc4's code >output is HALF the speed of gcc3.3 and 3.4. > >on x86 - beyond some new c feature support, gcc 4.x is a downgrade and if you >care about performance, is not a good idea. i cannot vouch for its correctness >when generating code either, but i'd be inclined to trust the more stable 3.x >series for code correctness - but thats just a hunch/instinct. > > > Fair enough. I was only really expecting Gentoo users to try it out, since it's easy to switch compilers and not break things for them. Since I got my powerbook I haven't really had much to do with x86 - apart from work of course - but I don't have a lot of time for benchmarking there.
>you may find you benchmarks are quite low on ppc too: > >p4 3.4ghz, nvidia 6600gt agp8x: > gcc version 4.0.2 20050821 (prerelease) (Debian 4.0.1-6) > GL: > # EVAS BENCH: 70.812 > Software X11: > # EVAS BENCH: 5.642 > > I see. Well to be fair, my specs aren't exactly a match for that system. Clock your CPU back to half-speed ( and ditch the late-model nvidia for an early-model Radeon ) and we'll see :) Anyway, I'm just happy that Enlightenment runs at all on my system. Dan ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ enlightenment-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/enlightenment-users
