On Wed, 2004-08-11 at 00:50, Malcolm Baldridge wrote: > 60 us worst-case latency, now that's more like it. > > Voluntary preemption sounds a bit scary though, as in, it may be burning up > too much CPU trying to reschedule. > > I also wonder how many drivers need patching. > Here are some results for 2.6.8-rc2-mm2 + voluntary-preempt O3. As I suspected, the latency is about 10-20% better than with the stock kernel + voluntary-preempt. http://krustophenia.net/testresults.php?dataset=2.6.8-rc2-mm2-O3 Lee