From: Peter Zijlstra <peterz@infradead.org>
To: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Lai Jiangshan <laijs@linux.alibaba.com>,
Hillf Danton <hdanton@sina.com>,
Valentin Schneider <valentin.schneider@arm.com>,
Qian Cai <cai@redhat.com>,
Vincent Donnefort <vincent.donnefort@arm.com>,
Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH 00/10] workqueue: break affinity initiatively
Date: Tue, 15 Dec 2020 08:50:44 +0100 [thread overview]
Message-ID: <20201215075044.GZ3040@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAJhGHyDYbU2=dQyiyx-AC+wu9=B7mTvsbU=QYPyV4xTE8PFPog@mail.gmail.com>
On Tue, Dec 15, 2020 at 01:44:53PM +0800, Lai Jiangshan wrote:
> I don't know how the scheduler distinguishes all these
> different cases under the "new assumption".
The special case is:
(p->flags & PF_KTHREAD) && p->nr_cpus_allowed == 1
next prev parent reply other threads:[~2020-12-15 7:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-14 15:54 [PATCH 00/10] workqueue: break affinity initiatively Lai Jiangshan
2020-12-14 15:54 ` [PATCH 01/10] workqueue: restore unbound_workers' cpumask correctly Lai Jiangshan
2020-12-14 15:54 ` [PATCH 02/10] workqueue: use cpu_possible_mask instead of cpu_active_mask to break affinity Lai Jiangshan
2020-12-14 17:25 ` Peter Zijlstra
2020-12-15 8:33 ` Lai Jiangshan
2020-12-15 8:40 ` Peter Zijlstra
2020-12-16 14:32 ` Tejun Heo
2020-12-14 15:54 ` [PATCH 03/10] workqueue: Manually break affinity on pool detachment Lai Jiangshan
2020-12-14 15:54 ` [PATCH 04/10] workqueue: don't set the worker's cpumask when kthread_bind_mask() Lai Jiangshan
2020-12-16 14:39 ` Tejun Heo
2020-12-14 15:54 ` [PATCH 05/10] workqueue: introduce wq_online_cpumask Lai Jiangshan
2020-12-14 15:54 ` [PATCH 06/10] workqueue: use wq_online_cpumask in restore_unbound_workers_cpumask() Lai Jiangshan
2020-12-14 15:54 ` [PATCH 07/10] workqueue: Manually break affinity on hotplug for unbound pool Lai Jiangshan
2020-12-16 14:50 ` Tejun Heo
2020-12-14 15:54 ` [PATCH 08/10] workqueue: reorganize workqueue_online_cpu() Lai Jiangshan
2020-12-14 15:54 ` [PATCH 09/10] workqueue: reorganize workqueue_offline_cpu() unbind_workers() Lai Jiangshan
2020-12-14 15:54 ` [PATCH 10/10] workqueue: Fix affinity of kworkers when attaching into pool Lai Jiangshan
2020-12-15 15:03 ` Valentin Schneider
2020-12-14 17:36 ` [PATCH 00/10] workqueue: break affinity initiatively Peter Zijlstra
2020-12-15 5:44 ` Lai Jiangshan
2020-12-15 7:50 ` Peter Zijlstra [this message]
2020-12-15 8:14 ` Lai Jiangshan
2020-12-15 8:49 ` Peter Zijlstra
2020-12-15 9:46 ` Lai Jiangshan
2020-12-16 14:30 ` Tejun Heo
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