From: Viresh Kumar <viresh.kumar@linaro.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it>,
Rafael Wysocki <rjw@rjwysocki.net>,
Ingo Molnar <mingo@redhat.com>,
Lists linaro-kernel <linaro-kernel@lists.linaro.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Juri Lelli <Juri.Lelli@arm.com>,
Robin Randhawa <robin.randhawa@arm.com>,
Steve Muckle <smuckle.linux@gmail.com>
Subject: Re: [PATCH 2/3] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task
Date: Sat, 12 Nov 2016 10:52:35 +0530 [thread overview]
Message-ID: <CAKohponr4=8Bf9C1=_YEhsvDXm0t2vXyGOnrrEr6HaMKzVOcnQ@mail.gmail.com> (raw)
In-Reply-To: <20161111143935.GK3117@twins.programming.kicks-ass.net>
On 11 November 2016 at 20:09, Peter Zijlstra <peterz@infradead.org> wrote:
> On Fri, Nov 11, 2016 at 03:32:04PM +0100, Tommaso Cucinotta wrote:
>> >+ struct sched_param param = { .sched_priority = 50 };
>>
>> won't you have a tunable here? (sysctl?)
>
> You can use the regular userspace tools, like schedtool and chrt to set
> priorities.
I wanted to get some help from you on this Peter. The out of tree Interactive
governor has always used MAX_RT_PRIORITY - 1 here instead of 50.
But Steve started with 50. What do you think should the value be ?
--
viresh
next prev parent reply other threads:[~2016-11-12 5:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-11 10:22 [PATCH 0/3] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task Viresh Kumar
2016-11-11 10:22 ` [PATCH 1/3] cpufreq: schedutil: enable fast switch earlier Viresh Kumar
2016-11-11 14:19 ` Peter Zijlstra
2016-11-11 21:52 ` Rafael J. Wysocki
2016-11-11 22:55 ` Peter Zijlstra
2016-11-11 21:58 ` Rafael J. Wysocki
2016-11-12 5:19 ` Viresh Kumar
2016-11-13 14:46 ` Rafael J. Wysocki
2016-11-14 4:06 ` Viresh Kumar
2016-11-14 11:30 ` Viresh Kumar
2016-11-11 10:22 ` [PATCH 2/3] cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task Viresh Kumar
2016-11-11 14:32 ` Tommaso Cucinotta
2016-11-11 14:39 ` Peter Zijlstra
2016-11-12 5:22 ` Viresh Kumar [this message]
2016-11-14 9:22 ` Peter Zijlstra
2016-11-14 10:22 ` Viresh Kumar
2016-11-12 5:21 ` Viresh Kumar
2016-11-11 22:16 ` Rafael J. Wysocki
2016-11-12 1:31 ` Saravana Kannan
2016-11-12 5:27 ` Viresh Kumar
2016-11-14 5:37 ` Viresh Kumar
2016-11-13 14:37 ` Rafael J. Wysocki
2016-11-13 19:47 ` Steve Muckle
2016-11-13 22:44 ` Rafael J. Wysocki
2016-11-14 6:36 ` Viresh Kumar
2016-11-12 5:24 ` Viresh Kumar
2016-11-13 19:31 ` Steve Muckle
2016-11-11 10:22 ` [PATCH 3/3] cpufreq: schedutil: irq-work is used only in slow path Viresh Kumar
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