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From: Jing Wu <realwujing@gmail.com>
To: 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>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Frederic Weisbecker <frederic@kernel.org>,
	Neeraj Upadhyay <neeraj.upadhyay@kernel.org>,
	Joel Fernandes <joelagnelf@nvidia.com>,
	Josh Triplett <josh@joshtriplett.org>,
	Boqun Feng <boqun@kernel.org>,
	Uladzislau Rezki <urezki@gmail.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Lai Jiangshan <jiangshanlai@gmail.com>,
	Zqiang <qiang.zhang@linux.dev>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>,
	Tejun Heo <tj@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Shuah Khan <shuah@kernel.org>, Thomas Gleixner <tglx@kernel.org>
Cc: Jing Wu <realwujing@gmail.com>, Waiman Long <longman@redhat.com>,
	linux-kernel@vger.kernel.org, rcu@vger.kernel.org,
	cgroups@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-kselftest@vger.kernel.org,
	Qiliang Yuan <yuanql9@chinatelecom.cn>
Subject: Re: [PATCH v4 00/11] Dynamic Housekeeping Management (DHM) via CPUSets
Date: Mon, 21 Sep 2026 11:13:03 +0800	[thread overview]
Message-ID: <20260921031304.437934-1-realwujing@gmail.com> (raw)
In-Reply-To: <20260710-wujing-dhm-v4-0-2e912e5d9645@gmail.com>

Hi all,

Gentle ping on this series - it has been quiet for a couple of months
since v4 went out, so checking whether it is stuck in a review queue
or just hasn't been picked up yet.

For context, v4 rebuilds the series around the CPU-by-CPU hotplug
cycling approach that Thomas suggested during v3 review, replacing the
RCU-swap-mask/callback mechanism from earlier versions. Patches 1-9
cover sched/isolation, tick/nohz, context_tracking, watchdog and the
cpuset driver logic; 10-11 are docs and selftests.

One thing worth flagging: v4 deliberately does not touch RCU/nocb
offload state. That piece is still being worked out in a separate,
ongoing discussion on Waiman's nohz_full/managed_irq series [1], where
the open question is how to change the nocb mask without paying a
stop_machine latency spike. We scoped it out of v4 so review of this
series would not need to wait on that RCU decision - happy to fold in
RCU/nocb support as a follow-up once that discussion converges.

Any review, even partial (a single patch or a design-level concern),
would be very helpful at this point.

[1] https://lore.kernel.org/r/20260709023221.634684-1-realwujing@gmail.com

Thanks,
Jing Wu

  parent reply	other threads:[~2026-09-21  3:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-10  3:28 [PATCH v4 00/11] Dynamic Housekeeping Management (DHM) via CPUSets Jing Wu
2026-07-10  3:28 ` [PATCH v4 01/11] sched/isolation: Add runtime housekeeping mask updates with boot snapshots Jing Wu
2026-07-10  3:28 ` [PATCH v4 02/11] sched/isolation: RCU-protect runtime-mutable housekeeping cpumask readers Jing Wu
2026-07-10  3:28 ` [PATCH v4 03/11] cgroup/cpuset: Drive kernel-noise housekeeping updates from isolated partitions Jing Wu
2026-09-23 15:10   ` Frederic Weisbecker
2026-07-10  3:28 ` [PATCH v4 04/11] context_tracking: allow runtime per-CPU user tracking enable/disable Jing Wu
2026-07-10  3:28 ` [PATCH v4 05/11] rcu/nocb: support lazy init for runtime CPU isolation Jing Wu
2026-07-10  3:28 ` [PATCH v4 06/11] watchdog: sync watchdog_cpumask with HK_TYPE_KERNEL_NOISE on isolation Jing Wu
2026-07-10  3:28 ` [PATCH v4 07/11] tick/nohz: add runtime tick_nohz_full_mask update for CPU isolation Jing Wu
2026-09-23 16:07   ` Frederic Weisbecker
2026-07-10  3:28 ` [PATCH v4 08/11] cpuset: add dhm_cycling_cpus mask to suppress transient invalidation Jing Wu
2026-07-10  3:28 ` [PATCH v4 09/11] cpuset: drive kernel-noise isolation via per-CPU hotplug cycling Jing Wu
2026-07-10  3:28 ` [PATCH v4 10/11] docs: cgroup-v2: document kernel-noise isolation via isolated partitions Jing Wu
2026-07-10  3:28 ` [PATCH v4 11/11] selftests/cgroup: add kernel-noise isolation test to cpuset selftest Jing Wu
2026-09-21  3:13 ` Jing Wu [this message]
2026-09-23 15:27 ` [PATCH v4 00/11] Dynamic Housekeeping Management (DHM) via CPUSets Frederic Weisbecker

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