Visual Studio 2008 awful performance

Posted by Nima on Stack Overflow See other posts from Stack Overflow or by Nima
Published on 2010-05-13T23:57:01Z Indexed on 2010/05/14 0:04 UTC
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c++

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visual-studio-2008

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Performance

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g++

Hi,

I have ported a piece of C++ code, that works out of core, from Linux(Ubuntu) to Windows(Vista) and I realized that it works about 50times slower on VS2008! I removed all the out of core parts and now I just have a piece of code that has nothing to do with the hard disk.

I set compiler parameters to O2 in Project Properties but still get about 10times slower than g++ in linux!

Does anybody have an idea why it is this much slower under VS?

I really appreciate any kind of hint!

Thanks,

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