Hi everybody! I am new to this forum, so ... My question is about prime95 stress testing (but also more general): I have a duallie (Athlon XP 1800+, non-modded) running WinXP SP1 and if I start two stress testing instances every gets 50% of the system - so one instance pro cpu. Everything okay! But if I start 4 instances then I would expect every instance at 25% of the systems resources. Mostly this happens - but sometimes I get one instance taking 40% and every other only 20%, or so. Once it was very extreme: one got 50% and every other only 17% of the system. This problem is not only occurring with prime but also if I am starting SMPOV with 3 or more instances in order to run multithreaded POVray renderings. I think the scheduling of WinXP pro is not so perfect ... Any suggestions why this is happening? (Of course I know I could set affinities in Windows TaskManager) greetings stippix
