Messages in this thread | | | From | Mel Gorman <> | Subject | [PATCH 0/2] Scale wakeup granularity relative to nr_running | Date | Mon, 20 Sep 2021 15:26:12 +0100 |
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It's unfortunate this is colliding with Plumbers but part of the discussions are on select_idle_sibling and hackbench is a common reference workload for evaluating select_idle_sibling. The downside is that hackbench is sensitive to other factors much more than the SIS cost. A major component is the value of kernel.sched_wakeup_granularity_ns and this series tackles that bit.
Patch 1 is minor, it was spotted while developing patch 2.
Patch 2 scales kernel.sched_wakeup_granularity_ns so allow tasks to avoid preemption longer when the machine is heavily overloaded.
-- 2.31.1
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