On Wed, Aug 27, 2003 at 05:02:19PM +0100, Steven Hartland wrote: > Whats the state of SCHED_ULE in 5.1 we are using 5.1-RELEASE > for running game servers and Im considering looking at using > SCHED_ULE but wanted to know if anyone had any feedback > on its current state e.g. whats its good at what its not good at / any > issues?
There are still known problems with it (see mailing list archives). Problems I have seen include: CPU stats are not updated for sleeping processes (leading to a weird top(1) experience), interactive performance is not as good as SCHED_4BSD when under load, and there seem to still be problems with the scheduling of niced processes (e.g. nice +20 processes still grab CPU away from others). My recommendation would be to try it for yourself if you can spare the time, otherwise stick with SCHED_4BSD for now. Kris
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