Messages in this thread Patch in this message | | | From | Vincent Guittot <> | Subject | [PATCH v5 6/7] sched/core: Support latency priority with sched core | Date | Sun, 25 Sep 2022 16:39:07 +0200 |
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Take into account wakeup_latency_gran() when ordering the cfs threads.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> --- kernel/sched/fair.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 74e42d19c1ce..e524e892d118 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -11443,6 +11443,10 @@ bool cfs_prio_less(struct task_struct *a, struct task_struct *b, bool in_fi) delta = (s64)(sea->vruntime - seb->vruntime) + (s64)(cfs_rqb->min_vruntime_fi - cfs_rqa->min_vruntime_fi); + /* Take into account latency prio */ + delta -= wakeup_latency_gran(sea, seb); + + return delta > 0; } #else -- 2.17.1
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