From: Yury Norov <yury.norov@gmail.com>
To: Valentin Schneider <vschneid@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
Leonardo Bras <leobras@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>
Subject: Re: [PATCH 2/2] sched/topology: optimize topology_span_sane()
Date: Tue, 6 Aug 2024 11:00:51 -0700 [thread overview]
Message-ID: <ZrJk00cmVaUIAr4G@yury-ThinkPad> (raw)
In-Reply-To: <xhsmhy159mz0g.mognet@vschneid-thinkpadt14sgen2i.remote.csb>
On Tue, Aug 06, 2024 at 05:50:23PM +0200, Valentin Schneider wrote:
> On 02/08/24 10:57, Yury Norov wrote:
> > The function may call cpumask_equal with tl->mask(cpu) == tl->mask(i),
> > even when cpu != i.
>
> For which architecture have you observed this? AFAIA all implementations of
> tl->sched_domain_mask_f are built on a per-CPU cpumask.
x86_64, qemu emulating 16 CPUs in 4 nodes, Linux 6.10, approximately
defconfig.
next prev parent reply other threads:[~2024-08-06 18:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-02 17:57 [PATCH 0/2] sched/topology: optimize topology_span_sane() Yury Norov
2024-08-02 17:57 ` [PATCH 1/2] sched/topology: pre-compute topology_span_sane() loop params Yury Norov
2024-08-03 15:32 ` Chen Yu
2024-08-02 17:57 ` [PATCH 2/2] sched/topology: optimize topology_span_sane() Yury Norov
2024-08-06 15:50 ` Valentin Schneider
2024-08-06 18:00 ` Yury Norov [this message]
2024-08-07 13:53 ` Valentin Schneider
2024-08-07 16:39 ` Yury Norov
-- strict thread matches above, loose matches on Subject: below --
2024-08-07 19:05 [PATCH v2 0/2] " Yury Norov
2024-08-07 19:05 ` [PATCH 2/2] " Yury Norov
[not found] <20240319185148.985729-1-kyle.meyer@hpe.com>
[not found] ` <20240319185148.985729-3-kyle.meyer@hpe.com>
2024-03-20 18:32 ` [PATCH 2/2] sched/topology: Optimize topology_span_sane() Yury Norov
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