On Thu, 06 Jul 2006 17:09:11 -0400, Valdis.Kletnieks wrote: > On Thu, 06 Jul 2006 22:59:35 +0200, Clemens Eisserer said: >> Just a side note: GTK-2.9.4 built with "-O2 -g -fPIC" is a lot slower >> than the stuff shipped with OpenSuSE (I guess 2.8.6+). maybe the >> debugging symbols cause cache misses ... I don't know but its about >> 25-75% slower. > > The debugging info created by -g goes into the binary on disk, but isn't > loaded into memory during execution. -fPIC is more likely the culprit, > as it adds extra memory references when finding the memory location of a > variable under some cases. This *could* cause L1 and L2 cache > thrashing, slowing things down much more than a single added opcode > would seem to suggest.... Ok, well... I'll try it out. I have "gtk2-2.8.19-2.src.rpm" downloaded and I've installed it locally. I've taken a look at the spec file, but I don't know how to alter it to work without -fPIC. If you can tell me how, then I'll rebuild it, install it and re-run gtk-perf... and see if it "feels" any better. _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
