Re: [PATCH 1/2] vdpa: mlx5: prevent cvq work from hogging CPU
From: Jason Wang
Date: Mon Mar 21 2022 - 21:59:32 EST
On Mon, Mar 21, 2022 at 8:34 PM Hillf Danton <hdanton@xxxxxxxx> wrote:
>
> On Mon, 21 Mar 2022 17:00:09 +0800 Jason Wang wrote:
> >
> > Ok, speak too fast.
>
> Frankly I have fun running faster five days a week.
:)
>
> > So you meant to add a cond_resched() in the loop?
>
> Yes, it is one liner.
Yes, there will be no "infinite" loop, but since the loop is triggered
by userspace. It looks to me it will delay the flush/drain of the
workqueue forever which is still suboptimal.
Thanks
>
> Hillf
>