Re: [PATCH v1] PM: sleep: Restore asynchronous device resume optimization

From: Rafael J. Wysocki
Date: Wed Feb 07 2024 - 14:54:33 EST


On Wed, Feb 7, 2024 at 8:48 PM Tejun Heo <tj@xxxxxxxxxx> wrote:
>
> Hello,
>
> I couldn't reproduce effective max_active being pushed down to min_active
> across suspend/resume cycles on x86. There gotta be something different.
>
> - Can you please apply the following patch along with the WQ_DFL_MIN_ACTIVE
> bump, go through suspend/resume once and report the dmesg?
>
> - Regardless of the root cause, I think async should switch to a dedicated
> workqueue with explicitly raised min_active (will add an interface for
> it).

Agreed.