Re: [PATCH v3 0/7] sched: Implement shared runqueue in CFS

[David Vernet]

On Wed, Aug 09, 2023 at 05:12:11PM -0500, David Vernet wrote:
> Changes
> -------
> 
> This is v3 of the shared runqueue patchset. This patch set is based off
> of commit 88c56cfeaec4 ("sched/fair: Block nohz tick_stop when cfs
> bandwidth in use") on the sched/core branch of tip.git.
> 
> v1 (RFC): https://lore.kernel.org/lkml/20230613052004.2836135-1-void@xxxxxxxxxxxxx/
> v2: https://lore.kernel.org/lkml/20230710200342.358255-1-void@xxxxxxxxxxxxx/

Hello everyone,

I wanted to give an update on this, as I've been promising a v4 of the
patch set for quite some time. I ran more experiments over the last few
weeks, and EEVDF has changed the performance profile of the SHARED_RUNQ
feature quite a bit compared to what we were observing with CFS. We may
pick this back up again at a later point, but for now we're going to
take a step back and re-evaluate.

Thanks,
David