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Date: Mon, 31 Aug 2026 15:24:14 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Jianyong Wu <wujianyong@hygon.cn>
Cc: Ingo Molnar <mingo@redhat.com>, Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Chen Yu <yu.c.chen@intel.com>,
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	Dietmar Eggemann <dietmar.eggemann@arm.com>,
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	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
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	Shrikanth Hegde <sshegde@linux.ibm.com>,
	Phil Auld <pauld@redhat.com>,
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	linux-mm@kvack.org, jianyong.wu@outlook.com, zhongyuan@hygon.cn,
	huangsj@hygon.cn, wangfengyu@hygon.cn, yingzhiwei@hygon.cn,
	justin.he@arm.com
Subject: Re: [RFC PATCH v2 08/23] sched/topology: Introduce a per-CPU tasks
 NUMA preferred counter
Message-ID: <20260831132414.GN4120091@noisy.programming.kicks-ass.net>
References: <20260827122816.756234-1-wujianyong@hygon.cn>
 <20260827122816.756234-9-wujianyong@hygon.cn>
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In-Reply-To: <20260827122816.756234-9-wujianyong@hygon.cn>

On Thu, Aug 27, 2026 at 08:28:01PM +0800, Jianyong Wu wrote:
> Like the existed task LLC preferred counter, sd->llc_counts, introduce
> sd->numa_counts to denotes the task number that prefer each NUMA node in
> a certain rq.
> 

To what purpose? Is not the node occupancy the direct sum of its
constituent llc occupancy?