> On 4/4/07, Kai Antweiler <[EMAIL PROTECTED]> wrote: >> I think "-O3" isn't much better than "-O2". >> We could use "-ffast-math" for PerlinNoise.cpp. > > I have measured this, automated inlining makes allot of difference, > especially in my newer Echo code, where the interface wasn't designed > arround low overheads.
Ok. Generally I like numbers, but a lot is ok. Some people assume the difference between "-O2" and "-O3" is up to 3% on average software. That is worth to consider. You just refer to "-O3" not "-ffast-math", don't you? >> "-O3" in HEAD is bad. It increases compilation time considerably >> without much speed improvements. Given the frequency of compilation >> this is no good. > > Thats why -O3 isn't used in head. You compile with ./configure > CXXFLAGS="whatever u want". Somethimes I forget this and just do: ./configure By the way, do you intend to look further into replacing autotools? -- Kai Antweiler _______________________________________________ glob2-devel mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/glob2-devel
