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Subject: Re: CA7 running in linux and speed of togaII

Author: Joshua Shriver

Date: 08:51:19 12/08/05

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I had done some testing a month or so ago against native builds and windows
builds under wine and did notice in some cases the windows binary was faster.
The only thing I can think of to explain it is the compiler. If you compiled a
linux binary using gcc unoptimized it might be slower than a windows Intel CC
super optimized build. Not sure how efficient MS's compiler VS is compared to
gcc but that might be a factor to..

When I want an engine to be as lean as possible on a given system I compile with
ICC (Intel's compiler which runs under linux)

As for wine, running a windows binary takes a very minimal hit in performance.
It creates a bridge between system calls for the most part.

Josh

P.S. What is CA7?

On December 07, 2005 at 19:46:24, ERIQ wrote:

>I have been playing around with wine and CA7demo and have found that it works
>ok, (just one error when analizing w/ engine,"External exception 80000101", but
>was amazed at the speedup of togaII.exe running faster in wine/CA7demo than in
>scid with native binary in same position?!
>
>what gives? How can a win binary be running faster under these conditions? I
>compiled the linux version with gcc 4.0.2.



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