From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 58001] "ondemand" CPU governor never raises frequency (Dell XPS
 12)
Date: Mon, 13 May 2013 03:48:37 +0000 (UTC)
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https://bugzilla.kernel.org/show_bug.cgi?id=58001





--- Comment #3 from Viresh Kumar <viresh.kumar@linaro.org>  2013-05-13 03:48:37 ---
On Sun, May 12, 2013 at 10:25 PM,  <bugzilla-daemon@bugzilla.kernel.org> wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=58001
>
>
>
>
>
> --- Comment #2 from Jean-Yves Lefort <jylefort@gmail.com>  2013-05-12 16:55:08 ---
> There is no such tool on my system (Fedora 18), I assume this is the same:
>
> $ cpupower -c all frequency-info
> analyzing CPU 0:
>   driver: acpi-cpufreq
>   CPUs which run at the same hardware frequency: 0 1 2 3
>   CPUs which need to have their frequency coordinated by software: 0
>   maximum transition latency: 10.0 us.
>   hardware limits: 800 MHz - 2.00 GHz
>   available frequency steps: 2.00 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz,
> 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz,
> 800 MHz
>   available cpufreq governors: conservative, userspace, powersave, ondemand,
> performance
>   current policy: frequency should be within 800 MHz and 2.00 GHz.
>                   The governor "ondemand" may decide which speed to use
>                   within this range.
>   current CPU frequency is 800 MHz.
>   boost state support:
>     Supported: yes
>     Active: yes
>     25500 MHz max turbo 4 active cores
>     25500 MHz max turbo 3 active cores
>     25500 MHz max turbo 2 active cores
>     25500 MHz max turbo 1 active cores
> analyzing CPU 1:
>   driver: acpi-cpufreq
>   CPUs which run at the same hardware frequency: 0 1 2 3
>   CPUs which need to have their frequency coordinated by software: 1
>   maximum transition latency: 10.0 us.
>   hardware limits: 800 MHz - 2.00 GHz
>   available frequency steps: 2.00 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz,
> 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz,
> 800 MHz
>   available cpufreq governors: conservative, userspace, powersave, ondemand,
> performance
>   current policy: frequency should be within 800 MHz and 2.00 GHz.
>                   The governor "ondemand" may decide which speed to use
>                   within this range.
>   current CPU frequency is 800 MHz.
>   boost state support:
>     Supported: yes
>     Active: yes
>     25500 MHz max turbo 4 active cores
>     25500 MHz max turbo 3 active cores
>     25500 MHz max turbo 2 active cores
>     25500 MHz max turbo 1 active cores
> analyzing CPU 2:
>   driver: acpi-cpufreq
>   CPUs which run at the same hardware frequency: 0 1 2 3
>   CPUs which need to have their frequency coordinated by software: 2
>   maximum transition latency: 10.0 us.
>   hardware limits: 800 MHz - 2.00 GHz
>   available frequency steps: 2.00 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz,
> 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz,
> 800 MHz
>   available cpufreq governors: conservative, userspace, powersave, ondemand,
> performance
>   current policy: frequency should be within 800 MHz and 2.00 GHz.
>                   The governor "ondemand" may decide which speed to use
>                   within this range.
>   current CPU frequency is 800 MHz.
>   boost state support:
>     Supported: yes
>     Active: yes
>     25500 MHz max turbo 4 active cores
>     25500 MHz max turbo 3 active cores
>     25500 MHz max turbo 2 active cores
>     25500 MHz max turbo 1 active cores
> analyzing CPU 3:
>   driver: acpi-cpufreq
>   CPUs which run at the same hardware frequency: 0 1 2 3
>   CPUs which need to have their frequency coordinated by software: 3
>   maximum transition latency: 10.0 us.
>   hardware limits: 800 MHz - 2.00 GHz
>   available frequency steps: 2.00 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz,
> 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz,
> 800 MHz
>   available cpufreq governors: conservative, userspace, powersave, ondemand,
> performance
>   current policy: frequency should be within 800 MHz and 2.00 GHz.
>                   The governor "ondemand" may decide which speed to use
>                   within this range.
>   current CPU frequency is 800 MHz.
>   boost state support:
>     Supported: yes
>     Active: yes
>     25500 MHz max turbo 4 active cores
>     25500 MHz max turbo 3 active cores
>     25500 MHz max turbo 2 active cores
>     25500 MHz max turbo 1 active cores

Can you give a try with 3.9 kernel?

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