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Questions tagged [cpufreq]

CPU Frequency, or CPU Frequency Scaling. This is implemented in the Linux kernel, and in versions since 3.4 use an ondemand governor by default, which saves power by using as much as is needed.

CPU frequency scaling enables the operating system to scale the CPU frequency up or down in order to save power. CPU frequencies can be scaled automatically depending on the system load, in response to ACPI events, or manually by userspace programs.

CPU frequency scaling is implemented in Linux kernel, the infrastructure is called cpufreq. Since kernel 3.4 the necessary modules are loaded automatically and the recommended ondemand governor is enabled by default. However, userspace tools like cpupower, acpid, Laptop Mode Tools, or GUI tools provided for your desktop environment, may still be used for advanced configuration.

Source: https://wiki.archlinux.org/index.php/CPU_Frequency_Scaling

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How do I set the CPU frequency scaling governor for all cores at once?

I'd like to set the CPU frequency scaling governor for all cores at once instead of doing it individually for each core. Is there a way to do this? (I know it would be easy to echo the governor to…
htorque
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How to permanently set CPU power management to the powersave governor?

I'm currently using this: cpupower frequency-set --governor powersave but it resets after each reboot.
Kyra
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How do I use the GNOME Panel in Unity?

I really need to use the GNOME Applets, is there a way to do it?
Haguilar91
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How to set "Performance" instead of "Powersave" as default?

When I start my Unity desktop the CPU indicator shows only one bar and it is set to Powersave. When I switch to Performance I have to enter an admin users password. But after system restart my CPU is back in Powersave. How to set Performance as the…
Witek
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Why are missing the frequency options on cpufreq-utils indicator?

I just upgraded to utopic and the indicator for cpufreq-utils just show two cpu frequency options: Power save and Performance. Before in trusty: Now in utopic: Regards.
Jhonnytunes
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Maximum CPU frequency stuck at low value

I have observed a problem with Ubuntu 13.04. The problem was not there on 11.10 I used earlier. The maximum CPU frequency is stuck at 2GHzon my Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz (Dell Lattitude E6320) # cat…
angainor
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Does Intel turbo boost work in Ubuntu?

I have an Intel i7 processor. It's frequency is 2.67 GHz, however it has turbo boost allowed to a frequency of 3.3 GHz. Is turbo boost posible using Ubuntu?
Tuxnewbee
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Can I upper limit the CPU frequency?

How can I upper limit my CPU frequency by a value? cpufreq offers fixing the frequency to a constant value, instead of letting it vary in a range. It also offers conservative, on demand, powersave, and performance. I don't know what they mean. but…
Tim
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CPU Frequency Scaling in Unity?

In Ubuntu 10.10, I added the CPU scaling applet on my panel in order to control the CPU frequency scaling. Since Unity no longer has a panel that supports applets, what mechanism do I use in 11.04 to achieve the same goal?
Mike Axiak
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Ubuntu and processor speed detection

I've got an older laptop that I use as a media center on my TV and I'm usually installing/reinstalling/uninstalling different OS' and Apps to get it to run as smoothly as possible. One thing I noticed was very strange. My laptop is a HP Pavilion G62…
Scotty_80
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ubuntu 14.04 - only performance and powersave governor available (i5 4.gen)

After updating my ubuntu 13.10 to 14.04 there only these to govenors available for my cpu, instead of additionally ondemand and conservative. cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors performance powersave My cpu is a…
kinske
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How to enable AMD Turbo Core on Ubuntu 14.04?

I'm using Ubuntu 14.04 (3.13.0-24-generic kernel) on AMD A8-4500m based laptop, and I've recently noticed, that AMD Turbo Core is not working at all. Everything works on Windows, however, on Linux CPU frequency can't get past 1.9 GHz (checked with…
m132
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Ubuntu 13.04 CPU frequency scaling 'stuck' on lowest frequency

I've just installed Ubuntu 13.04 on my MacBook Air, after toying around for awhile the machine felt really slow, so I checked out the CPU frequency. cpufreq-info, it reports 800MHz on all 4 cores (which is the lowest setting). The governor is set to…
user159534
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how to run cpufreqd in ubuntu 14.04?

I've just installed cpufreqd in a fresh installation of Ubuntu 14.04 through: sudo apt-get install cpufreqd After that, I tried to execute it by sudo cpufreqd. But nothing happens (neither error or indicator displayed). Even I can't see any new…
Akronix
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How to set as default Performance mode on Ubuntu 20.04 instead of Powersave?

I've been trying unsuccessfully to have the CPU governor default to Performance instead of Powersave at startup. Is there a tried-and-true method that currently works for Ubuntu 20.04? I tried the accepted solution for 18.04, but unfortunately, when…
facialrecognition
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