Re: [PATCH v8 2/2] nohz: set isolcpus when nohz_full is set
From: Peter Zijlstra
Date: Tue Apr 14 2015 - 12:46:04 EST
On Tue, Apr 14, 2015 at 05:26:45PM +0200, Frederic Weisbecker wrote:
> On Tue, Apr 14, 2015 at 11:17:55AM -0400, Chris Metcalf wrote:
> > nohz_full is only useful with isolcpus also set, since otherwise the
> > scheduler has to run periodically to try to determine whether to steal
> > work from other cores.
> >
> > Accordingly, when booting with nohz_full=xxx on the command line, we
> > should act as if isolcpus=xxx was also set, and set (or extend) the
> > isolcpus set to include the nohz_full cpus.
> >
> > Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
>
> No need to put my ack, since I'll add my Signed-off-by when I apply the patches.
> Note this won't go through this merge window though as we are in the middle of
> it already.
>
> Peter, are you ok with these two patches?
Yeah,
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
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