wine performance wiki page

[Dan Kegel]

Wine's performance is good, but in some areas doesn't
match that of Windows.  I figured a wiki
page on the topic would be useful, so I created
http://wiki.winehq.org/Performance
It was kind of sparse, but Stefan just added a great
3d performance debugging tutorial to it.

If there's anything important missing from that page,
please feel free to add it.  Hopefully this will help
people hunt down performance bottlenecks in Wine.