Linked by Jordan Spencer Cunningham on Wed 13th May 2009 01:18 UTC
Benchmarks Phoronix, known for their various speed tests and reviews, compared the latest in Ubuntu and what, until recently, used to be the lastest in Mac OS X with 29 different benchmarking tests. Some of the results were rather interesting.
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The Crafty result looks fishy to me.
by vdbergh on Wed 13th May 2009 11:13 UTC
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My experience with chess engines is that if they are compiled with the same compiler they run at exactly the same speed regardless of the OS. Could it be
that for some reason the MacOSX version used more
processors than the Ubuntu version?

I am assuming both Crafty's were compiled with the same compiler. If not then one has also to take into account that there is a large difference in performance among compilers.

At least until recently the Intel compiler produced much faster code than gcc (when using both with runtime profiling).

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