On Sat, Oct 24, 2015 at 10:23:14PM -0700, Joonwoo Park wrote:
> At present scheduler resets task's wait start timestamp when the task
> migrates to another rq. This misleads scheduler itself into reporting
> less wait time than actual by omitting time spent for waiting prior to
> migration and also more wait count than actual by counting migration as
> wait end event which can be seen by trace or /proc/<pid>/sched with
> CONFIG_SCHEDSTATS=y.
>
Have you seen:
1de64443d755 ("sched/core: Fix task and run queue sched_info::run_delay inconsistencies")
?
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