http://bugs.winehq.org/show_bug.cgi?id=11674
--- Comment #258 from gpiez@web.de 2012-10-19 03:35:39 CDT --- All those test were run with an "export WINEDEBUG=-all" before. If I do not disable it __GL_THREADED_OPTIMISATIONS=1 becomes a magnitude slower, the framerate is constantly below 10 fps. So yes, this has quite an impact :-)