From: Chen Yu <yu.c.chen@intel.com>
To: Jemmy Wong <jemmywong512@gmail.com>
Cc: Chen Yu <chen.yu@linux.dev>, <tim.c.chen@linux.intel.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>,
Valentin Schneider <vschneid@redhat.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] sched/cache: Remove the old cache group footprint on exec
Date: Thu, 15 Oct 2026 11:08:06 +0800 [thread overview]
Message-ID: <atBDlr0OvYa-ExeV@chenyu-dev> (raw)
In-Reply-To: <1174BE6F-35AC-4BBA-BD36-661B6FEC0794@gmail.com>
On Thu, Oct 15, 2026 at 01:25:52AM +0800, Jemmy Wong wrote:
[…]
> I agree a pure pointer-assignment helper should not touch the
> footprint. I now think it is better to change its responsibility:
> rename it to sched_cache_switch_grp(): have it subtract the
> task's contribution from the old group, publish the new pointer,
> and return the old group for the caller to put. This keeps the
> leave-group accounting and NUMA guard centralized.
>
Fair enough. I support this renaming proposal. Please feel free to
send a formal version.
thanks,
Chenyu
prev parent reply other threads:[~2026-10-15 3:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-10 11:16 Jemmy Wong
2026-10-10 15:04 ` Chen Yu
2026-10-12 13:34 ` Jemmy Wong
2026-10-14 9:17 ` Jemmy Wong
2026-10-14 13:03 ` Chen Yu
2026-10-14 17:25 ` Jemmy Wong
2026-10-15 3:08 ` Chen Yu [this message]
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