Author: Bo Persson
Date: 03:34:58 12/25/03
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On December 25, 2003 at 05:02:06, Mridul Muralidharan wrote: >Hi all, > > Since most of you would have tried out both VC 6 (with latest sp's and proc >packs) and VS .NET 2003 just wanted to get a few doubt's clarified. >(Questions are for compiling a C/C++ based project) > >What is the performance gain that you had when moving from vc 6 to vs 2003 ? It depends on you program, of course. In my case maybe 10-20% > >Does vs .net 2003 have pgo support ? No, but in many cases it is just as fast anyway. > >Does vs .net 2003 have specific targets for p3's , p4's ? Yes. >or are they still >restricted to "Pentium Pro" ? > >Are there any new and better optimisation techniques in vs .net 2003 ? The compiler can also use MMX/SSE/SSE2 instructions without the hacks from the processor pack. Improved floating point ops, which might not help for a chess program. Another advantage is that the 2003 version is very close to being Standard C++, so you can avoid lots of ugly hacks needed for VC6. Bo Persson > > >Thanks >Mridul
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