I'm using the rubenvb with no "dw2" in the archive name, so I suppose I'm using SJLJ in 32bit and SEH in 64bit?
Can there be a 30% speed difference just due to SJLJ, even if I do not use any exception handling in my code? Other libs may use exceptions, but my app is running my code 99% of the time, as libs are only used for GUI and during initialization. What do I risk with dw2? I've read the main guidelines, but my understanding of exception handling and stack frame unwinding is too short to understand if this will impact my work. Thanks, Etienne > -----Original Message----- > From: "Koehne Kai" <[email protected]> - 2013-03-27 14:16 > Are you using sjlj or dw2 as exception handling for 32 bit? It's a known > issue that the sjlj exception handling model has much worse performance, see > also https://bugreports.qt-project.org/browse/QTBUG-29653 . > > Give gcc-4.8-dw2-release/ a try. > > Regards Kai ------------------------------------------------------------------------------ Own the Future-Intel® Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d _______________________________________________ Mingw-w64-public mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
