From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Steve Muckle <steve.muckle@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
Subject: Re: cpufreq governors broken with !CONFIG_SMP?
Date: Fri, 06 May 2016 02:39:11 +0200 [thread overview]
Message-ID: <20628091.X3uHbXY5oF@vostro.rjw.lan> (raw)
In-Reply-To: <20160506002519.GB14673@sky.smuckle.net>
On Thursday, May 05, 2016 05:25:19 PM Steve Muckle wrote:
> On Fri, May 06, 2016 at 02:09:07AM +0200, Rafael J. Wysocki wrote:
> > In turn, schedutil should probably depend on CONFIG_SMP.
>
> In the long term I wonder if it's worth putting PELT under its own
> separate feature or just removing #ifdef CONFIG_SMP.
>
> Aside from task migration CPU frequency updates there's also task
> creation and deletion which would apply on UP. The tunable
> infrastructure being created for scheduler-guided frequency may be of
> interest on UP also.
I agree, but I was talking short-term. :-)
We need to fix this for 4.6 (which most likely is 2 weeks away only) and
I don't think it hurts anyone if schedutil depends on CONFIG_SMP to start
with.
next prev parent reply other threads:[~2016-05-06 0:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 23:49 Steve Muckle
2016-05-06 0:09 ` Rafael J. Wysocki
2016-05-06 0:25 ` Rafael J. Wysocki
2016-05-06 11:46 ` Peter Zijlstra
2016-05-06 11:49 ` Rafael J. Wysocki
2016-05-06 0:25 ` Steve Muckle
2016-05-06 0:39 ` Rafael J. Wysocki [this message]
2016-05-06 11:49 ` Peter Zijlstra
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