sched/smp: Use lag to simplify cross-runqueue placement

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Using lag is both more correct and simpler when moving between
runqueues.

Notable, min_vruntime() was invented as a cheap approximation of
avg_vruntime() for this very purpose (SMP migration). Since we now
have the real thing; use it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230531124604.068911180@infradead.org

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Peter Zijlstra 2023-05-31 13:58:46 +02:00 • committed by Ingo Molnar

parent 76cae9dbe1

commit e8f331bcc2

1 changed files with 19 additions and 126 deletions

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kernel/sched/fair.c

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