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From: Steve Muckle <steve.muckle@linaro.org>
X-Google-Original-From: Steve Muckle <smuckle@linaro.org>
Date: Thu, 5 May 2016 17:25:19 -0700
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steve Muckle <steve.muckle@linaro.org>,
        Peter Zijlstra <peterz@infradead.org>, linux-kernel@vger.kernel.org,
        linux-pm@vger.kernel.org
Subject: Re: cpufreq governors broken with !CONFIG_SMP?
Message-ID: <20160506002519.GB14673@sky.smuckle.net>
References: <20160505234922.GA14673@sky.smuckle.net>
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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.