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.
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Is it normal behavior for processor speed to quickly throttle, ignoring PL1/PL0 constraint power limits?
I recently got a Gigabyte Areo 17 i9-12900hk, and have put Ubuntu 22.04 kernel 5.19 on it. I ran s-tui to run it through a quick stress-test and found some odd processor behavior that does not happen ...
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How to fix cpu being throttled to 800 MHz on Dell Precision laptop?
How would you get your CPU to reach the maximum frequency when it's being throttled to 800 MHz?
After upgrading my Ubuntu distro a few months ago, on a Dell Precision 5520 laptop, I noticed it became ...
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How to change kernel boot parameters?
I need to turn CPUIDLE Off on Ubunto 20.04
The instructions I have are:
"Disable CPUIDLE via the kernel command-line in grub:"
linux /boot/vmlinuz-4-19.0-16-rt-amd64 cpuidle.off=1
How do I ...
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what is the canonic way to set cpupower governor permanentely in 22.04?
It seems the old way does not apply to 22.04 any more.
the /etc/default/cpufrequtils is missing
there is no ondemand.service
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Unable to limit CPU speed on Ubuntu 22.04 with cpufrequtils
Based on this: How can I easily control CPU speed on Ubuntu? I try to manually force some of my CPU cores on Ubuntu 22.04.1 5.15.0-56-generic x86_64 GNU/Linux to be limited to 800 MHz using cpufreq (...
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Correct way to tune CPU governor's parameters?
Looking for explanation on how to change the parameters of the CPU governor on 22.04 and that they stick after a reboot.
I am talking about the governor's parameters like "sampling_rate", &...
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how do i set every core to a different frequency
I tried to use sudo cpufreq-set -c -f to change a single core's frequency, while all the other cores' frequency changes simultaneously, is this because my CPU cannot support achieving this? My CPU is ...
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Changing CPU indicator from Powersave to Performance did not improve ping results
I am trying to ping between two PCs running Ubuntu 20.04 connected via a Layer-2 switch.
My goal is to get "nearly" stable ping latency.
Similar to other people, I figured out that ping ...
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Issues setting scaling governor in 22.04.1 LTS
I made a new 22.04.1 LTS install today.
I wanted to test an app I made that modifies your CPU's clock frequency.
The first step for testing was to change the scaling governor to userspace so I can set ...
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intel_pstate CPU model not supported
I've recently updated to Ubuntu 22.04 LTS and saw there was power options. However, performance mode is not available.
I can't get the same performance and benchmark scores I get in Windows dual boot. ...
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Override CPU frequency limitation on a MacBook Pro without battery
I have a MacBook Pro late 2013 that has frequency limitation at 800Mhz due to lack of battery.
I'm trying to override this limitation running Ubuntu 22.04.1 LTS
$ uname -r
5.15.0-46-generic
$ lscpu
...
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Why is Ubuntu 22.04 shutting down unexpectedly?
I recently upgraded to Ubuntu 22.04 and my Dell laptop started shutting down unexpectedly. It seems like my CPUs are spiking to 100%, then shutting down.
In many cases I can’t do the most simple task, ...
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Maximum CPU frequency reported wrong by lscpu, CPU not boosting to actual maximum frequency
I'm using Ubuntu 20.04, and my CPU model is the Intel i7-10750H:
> lscpu
Model name: Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz
Stepping: 2
Frequency ...
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Determining the clock speed
I mean to determine the clock speed.
I am posting below the output of the various commands listed here.
For the max freq, I see 4 different sources, with 2 different values:
CPU max MHz: 3300,0000 ...
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Battery-less MacBook Pro CPU is very slow
I have an Early 2011 era 13" MacBook Pro with an Intel Core i7-2620M CPU and have made the switch to Ubuntu because my laptop's MacOS support was dropped a few years ago.
The battery has recently ...
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Permanently setting intel pstate driver to "passive"
My i5-11600K CPU is using the intel_pstate frequency scaling.
By default, the driver is in "active" mode and will throttle up ALL 6 physical cores, even if there is only work for one core.
...
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Set CPU frequency permanently [duplicate]
Just got a laptop with an
Intel Celeron N4500 (Dual Core @ Max. 2,800)
which runs out of the box on 1,100. This is not even enough to run Netflix on full screen that's I'd like to increase the ...
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ALL CPU's stuck at 800Mhz ubuntu 20.04.3
Cpu's all stuck at 800Mhz
I type in watch -n1 "cat /proc/cpuinfo | grep MHz" (to see cpu's)
No matter what I do, I launch a large program and render an animation in Blender or use Octave to ...
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cpufreq: cpu frequency going down to minimum just when I need extra power
I've spent almost 3 days around this problem, to no avail.
I felt the laptop was running slow on certain tasks, slower than usual so I downloaded cpufreq extension to try and monitor and maybe ...
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Baud Rate instable on RPI4
I have a strange problem. I'm running a TCP to Serial server I wrote in Python3. It uses the UART of the RPI4 at 500000 baud. Initially I wrote it for a NanoPi and runs fine, but when switching to the ...
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Override BIOS limitation on CPU frequency
Similar to previous questions (example 1, example 2), the BIOS is limiting my CPU frequency because of a bad connection with the center pin of the adapter on my Dell Precision M5520 (which leads to ...
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cpufreq scaling governors "ondemand" and "conservative" won't ignore nice load on AMD Ryzen CPUs
My kernel 5.11.0-22-generic automatically loads the cpufreq scaling driver acpi-cpufreq and the scaling governor schedutil for my Ryzen 9 5900X. I enabled the setting ignore_nice_load after changing ...
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Getting Stuck on Low Clock Frequencies
I have been using the Ubuntu 20.04 LTS for the past three months after dualbooting it with Windows 10, and recently it has started showing some problems.
I usually use my laptop(Lenovo Ideapad C340) ...
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CPU frquency scaling broken on upgrade from Ubuntu 20.10->21.04 (Intel CPU)
This is basically a followup to CPU frquency scaling broken on upgrade from Ubuntu 20.04->20.10 (Intel CPU)
However, I'm not allowed to comment, and it was suggested to write a new question instead....
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Check max cpu clock speed in linux
I have seen this question multiple times but no answer to the point.
I am on Ubuntu 20.04, CPU is R9 5950x.
All I want is a stress test where it shows the max clock speed (in MHz) and
what a single ...
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Intel Core i7-8550U cpu frequency drops on high loads on Ubuntu 20.04
I installed Ubuntu 20.04 and have the following cpu:
grep -E '^model name|^cpu MHz' /proc/cpuinfo
model name : Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
cpu MHz : 3000.025
model name : Intel(R) ...
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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 ...
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What is the lowest frquency possible?
What is the minimum possible frequency of a CPU (in my case I have the Intel® Core™ i7-8750H CPU @ 2.20GHz × 12)
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How to set minimum CPU frequency?
I am trying to set the minimum frequency of my CPU in ubuntu. Basically, the minimum my CPU runs in Windows is 2%, and in ubuntu it is 19%. Is there some way to change it from 19% to 2%? I tried using ...
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cpu max frequency
I am trying to change my cpu max frequency. I have tried with tlp, cpupower, and the solution in this same forum (the one that goes: for x in /sys/devices/system/cpu/*/cpufreq/; do echo 1700000 | sudo ...
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CPU frquency scaling broken on upgrade from Ubuntu 20.04->20.10 (Intel CPU)
On upgrading from 20.04 - 20.10 I have noticed a massive degrading of performance, my laptop has basically become unusable. After a bit of digging it turned out that all CPUs were constantly scaled to ...
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Ubuntu 20.10. Cannot change the CPU scaling governor. It always goes back to "ondemand" after reboot
I'm running Xubuntu 20.10. I'm trying to change the CPU scaling governor to "conservative". But it always goes back to "ondemand" after reboot.
I have a Ryzen 7 4800H. So, my CPU ...
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Switching to AMD ryzen 5900x or 5950x. Any stability problem with 20.04 LTS?
I only run codes (C, Python) on my desktop which I am thinking of upgrading, either to AMD ryzen 5900x or to 5950x. I will be using ubuntu 20.04 LTS (only, no windows). Does anyone have any experience ...
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Clock CPU at frequencies other than 'available frequencies' on Xubuntu with Ryzen processor
CPU:
$ cat /proc/cpuinfo
processor : 11
vendor_id : AuthenticAMD
cpu family : 23
model : 96
model name : AMD Ryzen 5 4600H with Radeon Graphics
stepping : 1
microcode : 0x8600104
cpu ...
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amd ryzen 5950x max frequency is 3400MHz on ubuntu 20.04
When I run lscpu, I get
CPU max MHz: 3400.0000
CPU min MHz: 2200.0000
However, 5950x has a base frequency of 3400MHz and max of 4900MHz. How do I let ubuntu know that it can run up to 4900MHz?
EDIT:
...
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How to run throttle stop script at startup?
I have tried this (How do I write a script that runs on startup?) to automatically run a throttle stop script at startup. But I cannot make it work.
I've tried the methods (GUI app, cron job and /rc....
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Disabling AMD's equivalent (on a Zen-1 Epyc) of Intel's "turbo boost" at runtime?
This may be a terminology problem at my end and a duplicate: On Intel CPUs, I can relatively easy disable turbo boost at runtime by running something like
echo 1 > /sys/devices/system/cpu/...
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How to reduce cpu max speed?
I'm trying to improve CPU temperatures on a Dell Inspiron 7460 laptop which is a common problem with this particular machine when under reasonable stress (small chassis, badly placed vents, single ...
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CPU frequencies manually set using cpufreq doesn't seem to be effective anymore after sleep
I have set the frequencies of the 4 cores of my Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz CPU to lower values (800Mhz) for energy saving when using the computer on the field using this command:
for i ...
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How to update CPU frequency policy?
I have an Asus Laptop with i7 + ubuntu 18 (Linux 4.15.0-117-generic)
A few days ago, I don't know how, my PC became very slow. After several investigations I've found that the CPU is always at minimum ...
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How to lock Xeon cpu frequency to a specific clock rate?
So I am using a Xeon 2620 v4 through ssh/command line only. I have sudo access and have set all CPU governor to performance mode.
However, when I set the frequency using: "sudo cpufreq-set -f ...
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Ubuntu 20.04.1 LTS Significant Throttling of Intel i7 Processor
I have not been able get to my new laptop (An HP ZBook 15 G2 with Intel Core i7-4810MQ Quad Core Processor 3.7 GHz) to keep from SIGNIFICANTLY throttling my processors on Ubuntu 20.04.
It originally ...
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How to activate CPU driver in Ubuntu 20.04
I am new to Linux. I installed Ubuntu on VirtualBox. I have install cpufreqtils by command :
trinh@TrinhHuy:~$ sudo apt install cpufreqtils
Then I check the information of CPU.Here the output:
trinh@...
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Ubuntu 20.04. overclocks intel i7-9700k automatically?
I have a new intel i7-9700k running in ubuntu 20.04. This processor should clock at base frequency 3.6 GHz with maximum frequency 4.9 GHz in overclocking.
I did an expensive computation today and took ...
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How do I determine all components controlling CPU frequency?
Two requests please:
Can someone tell me how I can determine all the components that are
a) installed and b) actively controlling CPU frequency on an
installation?
And separately, can someone tell me ...
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Ubuntu Odroid XU4 - cpufrequtils - max min speed
I try to set the cpu speed and governor for my ODROID XU4. If you may know, the litte board has 8 cores, running 4 @ 2GHz and the other 4 @1.5GHz.
That's also my question:
How should I set the min ...
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How to add power governors?
my cpu is Intel n3710 , on Ubuntu 20.04 , I installed cpu freq utils , but it shows available cpufreq governors as only powersave and performance. Can we add other governors like ondemand , ...
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How do I write a script that runs on startup?
Newbie here. I have a Dell Inspiron 3442 who suffers from the "CPU stuck at 800Mhz" problem. In Windows, I used to run ThrottleStop at every startup and disable BD PROCHOT... So I installed Ubuntu ...
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Minimum cpu frequency set when charging and battery under ~7%
I have i7-7500U (@ 2.70GHz) and the intel_pstate governor is used, I've noticed when the system has low battery (under ~7% or so) and ONLY when charging, the cpus run at the minimum frequency (400 MHz ...
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