From: Elias P. <el...@us...> - 2007-02-05 14:44:11
|
On Tue, 2007-02-06 at 00:42 +1100, Peter Wang wrote: > > I retried the benchmark in that thread, and fixdivl now beats fixdivf on > my machine by ~10%, where as it was slower by ~15% one and a half years > ago. With a couple of other silly benchmarks fixdivl wins by an even > greater margin. Probably the only relevant difference to my setup since > then would be a newer version of gcc (3.4.6 vs 3.3.4). > > Anyone up for some benchmarking? > Results here are: with -O3 -march=pentium4: fixdivf is ~60% faster with -O3 -ffast-math: fixdivf is ~10% faster with -O3: fixdivf is ~10% faster with -O2: fixdivf is ~10% faster with -O1: fixdivf is ~10% faster with -O0: fixdivl is ~250% faster (irrelevant of course) -- Elias Pschernig |