linux-kernel - Re: [PATCH v3 1/8] sched/topology: Compute sd

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Message-ID: <xhsmha4xn3zf6.mognet@vschneid-thinkpadt14sgen2i.remote.csb>
Date: Thu, 05 Feb 2026 17:53:01 +0100
From: Valentin Schneider <vschneid@...hat.com>
To: K Prateek Nayak <kprateek.nayak@....com>, Ingo Molnar
 <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Juri Lelli
 <juri.lelli@...hat.com>, Vincent Guittot <vincent.guittot@...aro.org>,
 linux-kernel@...r.kernel.org
Cc: Dietmar Eggemann <dietmar.eggemann@....com>, Steven Rostedt
 <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman
 <mgorman@...e.de>, Chen Yu <yu.c.chen@...el.com>, Shrikanth Hegde
 <sshegde@...ux.ibm.com>, "Gautham R.
 Shenoy" <gautham.shenoy@....com>, K Prateek Nayak <kprateek.nayak@....com>
Subject: Re: [PATCH v3 1/8] sched/topology: Compute sd_weight considering
 cpuset partitions

On 20/01/26 11:32, K Prateek Nayak wrote:
> The "sd_weight" used for calculating the load balancing interval, and
> its limits, considers the span weight of the entire topology level
> without accounting for cpuset partitions.
>
> Compute the "sd_weight" after computing the "sd_span" considering the
> cpu_map covered by the partition, and set the load balancing interval,
> and its limits accordingly.
>
> Fixes: cb83b629bae03 ("sched/numa: Rewrite the CONFIG_NUMA sched domain support")
> Signed-off-by: K Prateek Nayak <kprateek.nayak@....com>

Reviewed-by: Valentin Schneider <vschneid@...hat.com>