sched/fair: Enable tuning of decay period

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Thermal pressure follows pelt signals which means the decay period for
thermal pressure is the default pelt decay period. Depending on SoC
characteristics and thermal activity, it might be beneficial to decay
thermal pressure slower, but still in-tune with the pelt signals.  One way
to achieve this is to provide a command line parameter to set a decay
shift parameter to an integer between 0 and 10.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200222005213.3873-10-thara.gopinath@linaro.org

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Thara Gopinath 2020-02-21 19:52:13 -05:00 • committed by Ingo Molnar

parent f12e4f66ab

commit 05289b90c2

4 changed files with 49 additions and 2 deletions

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16

Documentation/admin-guide/kernel-parameters.txt

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2

kernel/sched/core.c

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15

kernel/sched/fair.c

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18

kernel/sched/sched.h

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