Author: Bo Persson
Date: 01:56:00 09/03/03
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On September 02, 2003 at 16:52:24, Dezhi Zhao wrote: >Hi! > >I know that some programmers here have played with MMX/SSE/SSE2 quite a lot. I >am wondering if the new SSE registers and xor op can beat the regular registers >in calculating the hash key that are 64 bit operations. Have anybody tried this? Yes, SSE can beat (maybe by offloading) the regular registers in computing the hash key. The problem is that you cannot easily compare the result with anything else, without a set of load/store instructions. This tends to negate the computational speedup. > >Regards, >dzhao Bo Persson
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