This may sound like a stupid thought, and may have already been discussed (I couldnt attend wineconf), but doesnt g++ compile everything with -Ox upon request, so it is size-optimized (read: Compressed), and don't most people use that same flag on most compilations? It seems to me that if the above 2 statements are correct, then the reason MSVC produces faster code than g++ is because MSVC doesnt compress it's output, you have to use something like upx to compress it, while keeping it executable, and then once that is done, the binary runs slower... Like I said, probably already discussed, and probably incorrect, but my 2c either way.
Brian Vincent wrote:
On 1/3/06, Ananth M mekaananth@gmail.com wrote:
Then I converted the dll into .so and compiled and linked this .sowith win32 program using WineLib and Wineg++ The timing that was taken to execute the function exported by the dll ( through .so ) is almost two times, compread with executing using wine.
Does any one has any reference for further investigation on thisproblem or any information
I'm not sure if this is the reason or not, but we discussed this a bit at WineConf last year. The concensus was that MSVC produces much faster code compared to GCC. Maybe try compiling with MinGW on Windows and see what happens with the DLL in Windows?
-Brian