Thanks Glenn. Then that's reasonable. On Tuesday, August 13, 2013 12:19:09 AM UTC+8, Glenn Kasten wrote: > > Either SCHED_FIFO or SCHED_RR could be used; they are equivalent when the > tasks consume less than a full slice. > > We chose SCHED_FIFO because it was simpler; SCHED_RR has additional > semantics and a hard-coded (from user space) timeslice that we didn't need. > > On Friday, August 9, 2013 11:26:20 PM UTC-7, Xin Qian wrote: >> >> Although the default time slice of SCHED_RR is 100ms, then FastMixer >> could give up CPU before 100ms and allow other threads to be scheduled, so >> what's the problem? Actually we've already done the experiment using >> SCHED_RR, and the systrace result shows no difference. We couldn't figure >> out the benefit of using FIFO policy. Thanks. >> >
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