From: "Paul E. McKenney" <paulmck@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: mingo@kernel.org, tglx@linutronix.de,
linux-kernel@vger.kernel.org, jiangshanlai@gmail.com,
valentin.schneider@arm.com, cai@redhat.com,
vincent.donnefort@arm.com, decui@microsoft.com,
vincent.guittot@linaro.org, rostedt@goodmis.org, tj@kernel.org
Subject: Re: [PATCH 0/8] sched: Fix hot-unplug regressions
Date: Sun, 17 Jan 2021 21:28:32 -0800 [thread overview]
Message-ID: <20210118052832.GA13850@paulmck-ThinkPad-P72> (raw)
In-Reply-To: <20210116154859.GR2743@paulmck-ThinkPad-P72>
On Sat, Jan 16, 2021 at 07:48:59AM -0800, Paul E. McKenney wrote:
> On Sat, Jan 16, 2021 at 12:30:33PM +0100, Peter Zijlstra wrote:
> > Hi,
> >
> > These patches (no longer 4), seems to fix all the hotplug regressions as per
> > nearly a 100 18*SRCU-P runs over-night.
>
> Nice!!!
>
> > I did clean up the patches, so possibly I wrecked it again. I've started new
> > runs and will again leave them running over-night.
> >
> > Paul, if you could please also throw your monster machine at it.
>
> Will do as soon as the tests I started yesterday complete, which should
> be this afternoon, Pacific Time.
>
> My thought is to do the full set of scenarios overnight, then try
> hammering either SRCU-P and/or whatever else shows up in the overnight
> test. Seem reasonable?
And the SRCU-P runs did fine. I got some task hangs on TREE03 and (to
a lesser extent) TREE04. These might well be my fault, so I will try
bisecting tomorrow, Pacific Time.
Thanx, Paul
prev parent reply other threads:[~2021-01-18 5:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-16 11:30 Peter Zijlstra
2021-01-16 11:30 ` [PATCH 1/8] sched/core: Print out straggler tasks in sched_cpu_dying() Peter Zijlstra
2021-01-16 11:30 ` [PATCH 2/8] workqueue: Use cpu_possible_mask instead of cpu_active_mask to break affinity Peter Zijlstra
2021-01-16 11:30 ` [PATCH 3/8] sched: Dont run cpu-online with balance_push() enabled Peter Zijlstra
2021-01-16 15:27 ` Peter Zijlstra
2021-01-16 11:30 ` [PATCH 4/8] kthread: Extract KTHREAD_IS_PER_CPU Peter Zijlstra
2021-01-16 11:30 ` [PATCH 5/8] workqueue: Tag bound workers with KTHREAD_IS_PER_CPU Peter Zijlstra
2021-01-16 11:30 ` [PATCH 6/8] workqueue: Restrict affinity change to rescuer Peter Zijlstra
2021-01-16 11:30 ` [PATCH 7/8] sched: Fix CPU hotplug / tighten is_per_cpu_kthread() Peter Zijlstra
2021-01-17 16:57 ` Valentin Schneider
2021-01-18 9:30 ` Peter Zijlstra
2021-01-16 11:30 ` [PATCH 8/8] sched: Relax the set_cpus_allowed_ptr() semantics Peter Zijlstra
2021-01-16 14:39 ` Lai Jiangshan
2021-01-16 15:19 ` Peter Zijlstra
2021-01-16 15:25 ` [PATCH 0/8] sched: Fix hot-unplug regressions Peter Zijlstra
2021-01-16 15:45 ` Paul E. McKenney
2021-01-16 18:51 ` Peter Zijlstra
2021-01-16 15:48 ` Paul E. McKenney
2021-01-18 5:28 ` Paul E. McKenney [this message]
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