From: Peter Zijlstra <peterz@infradead.org>
To: Gautham R Shenoy <ego@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Tejun Heo <htejun@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Abdul Haleem <abdhalee@linux.vnet.ibm.com>,
Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] workqueue:Fix affinity of an unbound worker of a node with 1 online CPU
Date: Wed, 15 Jun 2016 15:14:15 +0200 [thread overview]
Message-ID: <20160615131415.GI30909@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20160615125033.GB31671@in.ibm.com>
On Wed, Jun 15, 2016 at 06:20:33PM +0530, Gautham R Shenoy wrote:
> We will no longer have the optimization in
> restore_unbound_workers_cpumask() but I suppose we don't lose much by
> resetting the affinity every time a CPU in the pool->attr->cpumask
> comes online.
Right; optimizing hotplug really isn't worth it. The code needs to be
simple and robust (ha! funny).
In any case, Tejun, does this work for you?
next prev parent reply other threads:[~2016-06-15 13:14 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-19 10:57 WARNING at kernel/sched/core.c:1166 while booting 4.6.0 mainline on ppc64le bare metal abdhalee
2016-05-19 12:34 ` Gavin Shan
2016-05-26 15:11 ` Gautham R Shenoy
2016-06-07 12:29 ` Abdul Haleem
2016-06-07 15:14 ` [PATCH 0/2] Fix CPU Online handling for unbounded worker threads Gautham R. Shenoy
2016-06-07 15:14 ` [PATCH 1/2] workqueue: Move wq_update_unbound_numa() to the beginning of CPU_ONLINE Gautham R. Shenoy
2016-06-15 15:53 ` Tejun Heo
2016-06-15 19:28 ` Gautham R Shenoy
2016-06-16 19:35 ` Tejun Heo
2016-06-21 14:12 ` Gautham R Shenoy
2016-06-21 15:36 ` Tejun Heo
2016-06-21 19:37 ` Peter Zijlstra
2016-06-21 19:43 ` Tejun Heo
2016-06-21 19:47 ` Peter Zijlstra
2016-06-22 5:15 ` Gautham R Shenoy
2016-06-24 9:00 ` [tip:sched/urgent] sched/core: Allow kthreads to fall back to online && !active cpus tip-bot for Tejun Heo
2016-06-07 15:14 ` [PATCH 2/2] workqueue:Fix affinity of an unbound worker of a node with 1 online CPU Gautham R. Shenoy
2016-06-08 6:03 ` Abdul Haleem
2016-06-14 11:22 ` Peter Zijlstra
2016-06-15 10:19 ` Gautham R Shenoy
2016-06-15 11:32 ` Peter Zijlstra
2016-06-15 12:50 ` Gautham R Shenoy
2016-06-15 13:14 ` Peter Zijlstra [this message]
2016-06-15 16:01 ` Tejun Heo
2016-06-16 12:11 ` Michael Ellerman
2016-06-16 12:45 ` Peter Zijlstra
2016-06-16 19:39 ` Tejun Heo
2016-06-17 1:49 ` Michael Ellerman
2016-07-15 5:27 ` Gautham R Shenoy
2016-07-15 5:30 ` Michael Ellerman
[not found] ` <57887507.911f240a.687de.08c5SMTPIN_ADDED_BROKEN@mx.google.com>
2016-07-15 12:10 ` Tejun Heo
2016-06-13 5:44 ` [PATCH 0/2] Fix CPU Online handling for unbounded worker threads Gautham R Shenoy
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