Hi Graeme, I'm doing tests on Fedora 15 and using it's provided /lib/modules/2.6.41.10-3.fc15.x86_64/build/Makefile for compiling the module. > For starters, I would not be surprised if the compiler produces identical > code, and if not, code that has the same performance... I've measured huge differences. Geometrical Mean of 512 values on Core i7: Original_code: 98.2421756187 Proposed_code: 17.9710892854 > That sounds like a perfectly good methodology - It would be interesting to > see how many reps are required before the mean settles down to a constant > value - Maybe you don't need to run it so many times, or maybe you need to > run more... During the run, measuring the original code reports some values that are much higher than the average. The graph is at: http://imgur.com/2WXAq The full source of the module I'm using is at: http://goo.gl/cCMIa What's wrong? []'s Peter -- Peter Senna Tschudin peter.senna@xxxxxxxxx gpg id: 48274C36 _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
