Re: [PATCH 2/6] sched_ext: Add scx_enabled() test to @start_class promotion in put_prev_task_balance()
From: David Vernet
Date: Mon Aug 05 2024 - 14:00:50 EST
On Sat, Aug 03, 2024 at 04:40:09PM -1000, Tejun Heo wrote:
> SCX needs its balance() invoked even when waking up from a lower priority
> sched class (idle) and put_prev_task_balance() thus has the logic to promote
> @start_class if it's lower than ext_sched_class. This is only needed when
> SCX is enabled. Add scx_enabled() test to avoid unnecessary overhead when
> SCX is disabled.
>
> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
> Suggested-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Acked-by: David Vernet <void@xxxxxxxxxxxxx>
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