tick/nohz: Change signal tick dependency to wake up CPUs of member tasks

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Rather than waking up all nohz_full CPUs on the system, only wake up
the target CPUs of member threads of the signal.

Reduces interruptions to nohz_full CPUs.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210512232924.150322-8-frederic@kernel.org

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Marcelo Tosatti 2021-05-13 01:29:21 +02:00 • committed by Ingo Molnar

parent 29721b8592

commit 1e4ca26d36

3 changed files with 19 additions and 8 deletions

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include/linux/tick.h

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