Author: Ren Wu
Date: 17:47:30 08/05/99
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On August 05, 1999 at 17:11:12, Paul J. Messmer wrote: > >Okay, time to de-lurk I guess. I've been working on a chess engine with the >idea of seeing how fast one can make it, and utilizing x86 assembly (MMX >technology in particular) where possible. Please let us know your speed when you done, i am interested in it very much. >Not only does the MSVC profiler slow >you down drastically, but I have found (at least on my machine) that it does not >produce correct results. Perhaps for some things it is great, but for the kind >of data I was look for it was crap. > >I would suggest trying Intel's VTune product; it is very useable, easy to get >started, and gives good (and correct) profiling information. The way it samples >does not slow down your program; I do think it requires a real Intel processor >though. It's a little pricy but there is a 14 day eval you can download for >free from Intel. I don't work for Intel, BTW... :) Check the eval out... > >--- >Paul J. Messmer >http://www.spootopia.com >messmer@netcom.com I agree that vtune is a better product, but James is asking about using VC's profiler. I got 10% speed up when i used vtune first time, back to 1997, at C level. My program has not yet reached to the point that i have to use assembler to speed things up. Ren
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