From: Peter Zijlstra <peterz@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Lists linaro-kernel <linaro-kernel@lists.linaro.org>
Subject: Re: [Query]: tick-sched: why don't we stop tick when we are running idle task?
Date: Tue, 15 Apr 2014 12:52:26 +0200 [thread overview]
Message-ID: <20140415105226.GP11096@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20140415093002.GL1877@localhost.localdomain>
On Tue, Apr 15, 2014 at 11:30:04AM +0200, Frederic Weisbecker wrote:
> There is probably a few things that assume local calls but last time
> I checked I had the impression that it was fairly possible to call sched_class::task_tick()
> remotely. rq is locked, no reference to "current", use rq accessors...
>
> OTOH scheduler_tick() itself definetly requires local calls.
possible isn't the problem, its completely insane to do that.
next prev parent reply other threads:[~2014-04-15 10:52 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-09 10:33 [Query]: tick-sched: why don't we stop tick when we are running idle task? Viresh Kumar
2014-04-09 10:49 ` Viresh Kumar
2014-04-10 14:39 ` Frederic Weisbecker
2014-04-11 10:04 ` Viresh Kumar
2014-04-11 14:53 ` Frederic Weisbecker
2014-04-11 15:18 ` Peter Zijlstra
2014-04-11 16:38 ` Viresh Kumar
2014-04-14 9:48 ` Preeti Murthy
2014-04-14 9:51 ` Viresh Kumar
2014-04-14 11:02 ` Peter Zijlstra
2014-04-14 11:42 ` Viresh Kumar
2014-04-14 11:47 ` Peter Zijlstra
2014-04-14 11:52 ` Viresh Kumar
2014-04-14 12:06 ` Peter Zijlstra
2014-04-15 6:04 ` Viresh Kumar
2014-04-15 9:30 ` Frederic Weisbecker
2014-04-15 10:52 ` Peter Zijlstra [this message]
2014-04-15 10:53 ` Peter Zijlstra
2014-04-23 11:12 ` Viresh Kumar
2014-05-09 8:44 ` Viresh Kumar
2014-05-13 23:30 ` Frederic Weisbecker
2014-05-22 8:44 ` Peter Zijlstra
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