Messages in this thread | | | Date | Sun, 25 Oct 2015 11:08:50 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] sched: fix incorrect wait time and wait count statistics |
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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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