[mingw - C/C++] RE: gcc 3.2.3 performance: windows VS linux

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[mingw - C/C++] RE: gcc 3.2.3 performance: windows VS linux

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By: adah

There are many issues related, and the real performance depends on the kind
of application you use. Basically later versions are better than earlier ones
for `complex' features like templates, and can optimize for `newer' platforms
like Pentium 4 and Athlon. However, your applications are not necessarily faster
with new GCC versions if you do not target Pentium 4 and do not use templates
heavily.

GCC also tends to be more optimized and thoroughly tested on Linux than on Windows
(after all, Linux is *the* Open Source platform). E.g., in GCC 3.2.3, the default
code for both threading and exception performs better on Linux than on Win32.
The threading code has been improved in GCC 3.4, but the exception mode currenly
used on Win32 (sjlj) does not perform as well as that on Linux (dwarf2), and
sjlj should be used since dwarf2 cannot handle some specific Win32 needs.

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