Messages in this thread Patch in this message | | | From | Peng Wang <> | Subject | [PATCH] schied/fair: Skip updating "contrib" without load | Date | Sat, 7 Dec 2019 00:14:22 +0800 |
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We only update load_sum/runnable_load_sum/util_sum with decayed old sum when load is clear.
Signed-off-by: Peng Wang <rocking@linux.alibaba.com> --- kernel/sched/pelt.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/pelt.c b/kernel/sched/pelt.c index a96db50..4392953 100644 --- a/kernel/sched/pelt.c +++ b/kernel/sched/pelt.c @@ -129,8 +129,9 @@ static u32 __accumulate_pelt_segments(u64 periods, u32 d1, u32 d3) * Step 2 */ delta %= 1024; - contrib = __accumulate_pelt_segments(periods, - 1024 - sa->period_contrib, delta); + if (load) + contrib = __accumulate_pelt_segments(periods, + 1024 - sa->period_contrib, delta); } sa->period_contrib = delta; -- 1.8.3.1
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