Re: [PATCH 1/3] sched/isolation: Add HK_FLAG_SCHED to nohz_full

From: Phil Auld
Date: Wed Sep 04 2024 - 10:34:02 EST


On Wed, Sep 04, 2024 at 04:02:10PM +0200 Peter Zijlstra wrote:
> On Wed, Sep 04, 2024 at 09:44:27AM -0400, Phil Auld wrote:
>
> > > You can create single CPU partitions using cpusets dynamically.
> > >
> >
> > This is somewhat new though... Although you could turn off load balancing with
> > groups v1, in v2 you could not.
>
> I can't remember, but I think I stalled cpuset-v2 until this was
> adressed -- that is, AFAIR any v2 can actually do this too. You create
> many 1 cpu partitions. It is more cumbersome that v1, but it is very
> much doable.
>
>

v2 can do this _now_. It couldn't before. Or at least not in a way that was
usable until Waiman's partitioning patches I believe.

I did say that in the past tense :)



Cheers,
Phil

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