Via rc3 comes a link to a well researched article that discusses the recent Mindcraft survey that pitted MS IIS against Apache on Linux. It analyses not only where Mindcraft could have done better to make the test fairer but also where some of the genuine limiting points in Linux and Apache lie. Some kernel patches have arisen out of all this especially for SMP and threading but there are still issues as to why Apache fails at specific cutoff points. Well worth the read, don't worry about all the heavy stuff towards the end