Archives
D Programming
DD.gnu digitalmars.D digitalmars.D.bugs digitalmars.D.dtl digitalmars.D.dwt digitalmars.D.announce digitalmars.D.learn digitalmars.D.debugger C/C++ Programming
c++c++.announce c++.atl c++.beta c++.chat c++.command-line c++.dos c++.dos.16-bits c++.dos.32-bits c++.idde c++.mfc c++.rtl c++.stl c++.stl.hp c++.stl.port c++.stl.sgi c++.stlsoft c++.windows c++.windows.16-bits c++.windows.32-bits c++.wxwindows digitalmars.empire digitalmars.DMDScript |
c++ - significantly reduced execution speed after CPU upgrade
Dear DMC Community, I used to work with an Athlon XP 2000+ (1x1,67GHz) and my selfmade 32bit console applications ran pretty fast under Win XP (32bit). Now I have an Intel T7200 Core 2 Duo (2x2,0GHz, Merom) and I am still working with Win XP (32bit). I know that my applications use only one of the two cores, but one of them is almost twice as fast as my old Athlon in every other commercial software I tested. BUT my application I wrote in C++ and compiled with DMC are much slower than before. The application is a comparably simple 3D rendering engine doing lots of additions and multiplications - nothing out of the ordinary. So what could be the problem? Does DMC have problems with 64-bit CPUs? Where could I start looking for the cause? Is it the compiler settings? (I never use any: just 'dmc testfile.cpp' - until now, this worked fine). It would be great, if anyone could help. Greetings Jens Nov 07 2006
|