问题
I am working on Ubuntu project. Have not found clear difference between sched_batch and sched_other. Can anyone tell me the difference?
回答1:
Threads that are scheduled with sched_batch are assumed to be non-interactive, but CPU bound and optimized for throughput. Thus, this policy is more cache-friendly. The default sched_batch timeslice is 1.5 seconds. In addition, in case of SMP, sched_batch will migrate to a core with high idleness (with respect to non-batch threads).
回答2:
The primary difference is that sched_batch is a variant of sched_idle. I.e. such processes only get to use the cpu if sched_other processes don't want to.
来源：https://stackoverflow.com/questions/30284496/what-is-difference-between-sched-batch-and-sched-other-scheduling