Re: [REGRESSION] drm/sched: FAIR policy causes serious performance degradation at max GPU load on 9070XT

On Mon Aug 10, 2026 at 10:28 AM CEST, Philipp Stanner wrote:
>> Reverted Commits:
>> 
>> d09339388b77 drm/sched: Remove drm_sched_init_args->num_rqs
>> 2833a0512b4c drm/sched: Remove drm_sched_init_args->num_rqs usage
>> 16e7698bc04d drm/sched: Embed run queue singleton into the scheduler
>> 77a6809f1dc3 drm/sched: Remove FIFO and RR and simplify to a single run queue
>> 45c211ddf92a drm/sched: Switch default policy to fair
>> 2462a0ce23b0 drm/amdgpu: Remove drm_sched_init_args->num_rqs usage

[...]

> That might be the wisest thing to do; but let's hear if Tvrtko has an idea for
> a hotfix first.

-rc7 was released yesterday; even with a working hotfix today it'd be tricky to
ensure the hotfix does not regress other drivers or workloads with 7.2 being
just a few days ahead.

I suggest to not wait and get the reverts ready.

Thanks,
Danilo