linux-kernel - Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs

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Message-ID: <20170320103815.za7bgz4ttz67s746@hirez.programming.kicks-ass.net>
Date:   Mon, 20 Mar 2017 11:38:15 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Juri Lelli <juri.lelli@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Joel Fernandes <joelaf@...gle.com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Ingo Molnar <mingo@...hat.com>
Subject: Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy
 CPUs

On Sun, Mar 19, 2017 at 10:24:24PM +0100, Rafael J. Wysocki wrote:

> Honestly, if the processor had been capable of doing per-core P-states, that
> would have been a disaster and there are customers who wouldn't look at
> schedutil again after being confronted with these numbers.

This, I feel, is a bit overstated. We have bug, we fix them.