sched: Limit the number of task migrations per batch on RT

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Batched task migrations are a source for large latencies as they keep the
scheduler from running while processing the migrations.

Limit the batch size to 8 instead of 32 when running on a RT enabled
kernel.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210928122411.425097596@linutronix.de

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Thomas Gleixner 2021-09-28 14:24:25 +02:00 • committed by Peter Zijlstra

parent 8d491de6ed

commit 691925f3dd

1 changed files with 4 additions and 0 deletions

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kernel/sched/core.c

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