From: Waiman Long <longman@redhat.com>
To: Qiliang Yuan <realwujing@gmail.com>, peterz@infradead.org
Cc: cgroups@vger.kernel.org, akpm@linux-foundation.org,
anna-maria@linutronix.de, boqun.feng@gmail.com,
bsegall@google.com, dietmar.eggemann@arm.com,
frederic@kernel.org, hannes@cmpxchg.org, jackmanb@google.com,
jiangshanlai@gmail.com, joelagnelf@nvidia.com,
josh@joshtriplett.org, juri.lelli@redhat.com,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-mm@kvack.org, mathieu.desnoyers@efficios.com,
mgorman@suse.de, mhocko@suse.com, mingo@kernel.org,
mingo@redhat.com, neeraj.upadhyay@kernel.org, paulmck@kernel.org,
qiang.zhang@linux.dev, rcu@vger.kernel.org, rostedt@goodmis.org,
shuah@kernel.org, surenb@google.com, tglx@kernel.org,
tj@kernel.org, urezki@gmail.com, vbabka@suse.cz,
vincent.guittot@linaro.org, vschneid@redhat.com, ziy@nvidia.com
Subject: Re: [PATCH 06/15] sched/core: Dynamically update scheduler domain housekeeping mask
Date: Tue, 31 Mar 2026 00:03:26 -0400 [thread overview]
Message-ID: <18473552-2a97-4da9-9f44-ac49d4131004@redhat.com> (raw)
In-Reply-To: <20260330114516.103451-1-realwujing@gmail.com>
On 3/30/26 7:45 AM, Qiliang Yuan wrote:
> On Wed, Mar 25, 2026 at 03:00:53PM +0100, Peter Zijlstra wrote:
>> Sched domain boundaries are not static, they are easily changed by
>> cpuset partition (v1 and v2 both support this).
> You're absolutely right. My description was imprecise. The goal of this
> patch was to ensure that the housekeeping mask for scheduler domains
> follows the partition boundaries dynamically as they are resized.
>
> In V13, I will explicitly integrate the housekeeping update logic
> directly with `cpuset.cpus.partition` transitions. This way, any change
> to the isolation level of a partition will automatically update
> the kernel-internal housekeeping state, avoiding any parallel management
> logic.
It looks like your patch series isn't based on the latest v7.0 kernel.
With the latest upstream kernel, the HK_TYPE_DOMAIN cpumask has been
updated to dynamically follow changes made in the cpuset isolated
partition setting.
Cheers,
Longman
next prev parent reply other threads:[~2026-03-31 4:03 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-25 9:09 [PATCH 00/15] Implementation of Dynamic Housekeeping & Enhanced Isolation (DHEI) Qiliang Yuan
2026-03-25 9:09 ` [PATCH 01/15] sched/isolation: Support dynamic allocation for housekeeping masks Qiliang Yuan
2026-03-25 13:57 ` Peter Zijlstra
2026-03-30 11:43 ` Qiliang Yuan
2026-03-31 9:23 ` Frederic Weisbecker
2026-03-31 9:31 ` Frederic Weisbecker
2026-03-25 9:09 ` [PATCH 02/15] sched/isolation: Introduce housekeeping notifier infrastructure Qiliang Yuan
2026-03-25 13:58 ` Peter Zijlstra
2026-03-30 11:44 ` Qiliang Yuan
2026-03-31 9:34 ` Frederic Weisbecker
2026-03-25 9:09 ` [PATCH 03/15] sched/isolation: Separate housekeeping types in enum hk_type Qiliang Yuan
2026-03-25 13:59 ` Peter Zijlstra
2026-03-30 11:44 ` Qiliang Yuan
2026-03-31 9:36 ` Frederic Weisbecker
2026-03-25 9:09 ` [PATCH 04/15] genirq: Support dynamic migration for managed interrupts Qiliang Yuan
2026-03-31 9:37 ` Frederic Weisbecker
2026-03-25 9:09 ` [PATCH 05/15] rcu: Support runtime NOCB initialization and dynamic offloading Qiliang Yuan
2026-03-25 9:09 ` [PATCH 06/15] sched/core: Dynamically update scheduler domain housekeeping mask Qiliang Yuan
2026-03-25 14:00 ` Peter Zijlstra
2026-03-30 11:45 ` Qiliang Yuan
2026-03-31 4:03 ` Waiman Long [this message]
2026-03-25 9:09 ` [PATCH 07/15] watchdog: Allow runtime toggle of lockup detector affinity Qiliang Yuan
2026-03-25 14:03 ` Peter Zijlstra
2026-03-30 11:45 ` Qiliang Yuan
2026-03-25 9:09 ` [PATCH 08/15] workqueue: Support dynamic housekeeping mask updates Qiliang Yuan
2026-03-31 9:39 ` Frederic Weisbecker
2026-03-25 9:09 ` [PATCH 09/15] mm/compaction: Support dynamic housekeeping mask updates for kcompactd Qiliang Yuan
2026-03-31 9:40 ` Frederic Weisbecker
2026-03-25 9:09 ` [PATCH 10/15] tick/nohz: Transition to dynamic full dynticks state management Qiliang Yuan
2026-03-25 9:09 ` [PATCH 11/15] sched/isolation: Implement SMT-aware isolation and safety guards Qiliang Yuan
2026-03-25 9:09 ` [PATCH 12/15] sched/isolation: Bridge boot-time parameters with dynamic isolation Qiliang Yuan
2026-03-25 9:09 ` [PATCH 13/15] sched/isolation: Implement sysfs interface for dynamic housekeeping Qiliang Yuan
2026-03-25 14:04 ` Peter Zijlstra
2026-03-30 11:46 ` Qiliang Yuan
2026-03-30 18:34 ` Tejun Heo
2026-03-31 14:38 ` Waiman Long
2026-03-25 9:09 ` [PATCH 14/15] Documentation: isolation: Document DHEI sysfs interfaces Qiliang Yuan
2026-03-25 9:09 ` [PATCH 15/15] selftests: dhei: Add functional tests for dynamic housekeeping Qiliang Yuan
2026-03-25 16:02 ` [PATCH 00/15] Implementation of Dynamic Housekeeping & Enhanced Isolation (DHEI) Tejun Heo
2026-03-30 11:41 ` Qiliang Yuan
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