linux-kernel - Re: [PATCH] selftests: cpufreq: Check cpuinfo_cur

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Message-ID: <CAJZ5v0g5Chq-zw0tN6Mvp2YD2WKavUMp37UtAoFPLW3yiX4F1w@mail.gmail.com>
Date:   Wed, 12 Jul 2017 13:36:05 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Leonard Crestez <leonard.crestez@....com>
Cc:     Shuah Khan <shuah@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-kselftest@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Octavian Purdila <octavian.purdila@....com>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] selftests: cpufreq: Check cpuinfo_cur_freq set as expected

On Wed, Jul 12, 2017 at 1:29 PM, Leonard Crestez
<leonard.crestez@....com> wrote:
> This checks that the cpufreq driver actually sets the requested
> frequency.

This won't work on modern x86  with APERF/MPERF (see recent commits in
that area).

Thanks,
Rafael