Re: Re: [PATCH v2 0/2] Fix SCHED_IDLE behavior on wakeup preemption

From: Abel Wu
Date: Sun Mar 02 2025 - 22:32:14 EST


On 2/28/25 4:05 PM, K Prateek Nayak wrote:
Hello Abel,

On 2/27/2025 2:28 PM, Abel Wu wrote:
The commit 6bc912b71b6f ("sched: SCHED_OTHER vs SCHED_IDLE isolation")
defines the behavior of SCHED_IDLE as following:

  - no SCHED_IDLE buddies
  - never let SCHED_IDLE preempt on wakeup
  - always preempt SCHED_IDLE on wakeup
  - limit SLEEPER fairness for SCHED_IDLE

and the middle two of them are broken now.

Feel free to include:

Tested-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>

Thanks!