On Wed, Jun 02, 2004 at 11:28:20AM -0700, Fernando Pablo Lopez-Lezcano wrote: > > > > A real test with the Jack low latency server reveals that something else > > > > is creating latency hits. > > > > > > do you run Jack as realtime process ?? > > > > Correct, it is running SCHED_FIFO. I'm using Jack O'Quin LSM realcap > > module to grant non-root users those privileges (compiled as a module in > > the kernel). > > > > Just occured to me, is there anything else in FC2 that may be running > > SCHED_FIFO?? I'll try to find out. > > Using schedutils (chrt) I find no tasks or threads running SCHED_FIFO. > And the realtime threads of jack are apparently running SCHED_FIFO. > Argh, that would have been too easy :-) can you try to NOT run it realtime? Sounds odd but when you use realtime behavior you have to be really careful for priority inversion situations (eg if X doesn't run at such a high prio, but your RT task needs to wait on X to draw something..)
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