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Date: Fri, 2 Jun 2023 09:00:28 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: K Prateek Nayak <kprateek.nayak@....com>
Cc: linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org,
Tejun Heo <tj@...nel.org>, x86@...nel.org,
Gautham Shenoy <gautham.shenoy@....com>
Subject: Re: [tip: sched/core] sched/fair: Multi-LLC select_idle_sibling()
On Fri, Jun 02, 2023 at 10:43:37AM +0530, K Prateek Nayak wrote:
> This makes sense but I wonder if new domain will add more load balancing
> jitters. Also this will require larger evaluation with some more diverse
> workloads.
Always the case, isn't it :-)
> Let me go check if we can get find the NPS2/NPS4 boundary when
> in NPS1 mode.
Yeah, that would be nice; if not you can see if you can reverse engineer
them from FMS and the topology bits we do have and file a request with
your hardware people to pretty please expose this going forward.
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