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Thanks to Frank and Xavier, and conclusions

Posted By: Frank Berger
Date: Friday, 4 December 2009, at 8:23 p.m.

In Response To: Thanks to Frank and Xavier, and conclusions (Sam Pottle)

That's true but floating point on current CPU is much faster than you expect (or at least than I expected). Bgblitz2Go uses integer math, simply because some phones don't have floating point and the other have probably only a SW-emulation. I did the obvious and used the integer thing on a real CPU. I don't remember the exact numbers but I think it was aout lousy 15% speedup..... Branches that were evaluated wrong and memory access hurt MUCH MUCH more.... IIRC one memory access that isn't in any cache can cost 200-300 CPU cycles....

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