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Questions tagged [cpu]

CPU stands for Central Processing Unit, and is the main processing chip used in every computer. Brands include Intel, AMD and ARM. CPUs are commonly available in 32- and 64-bit, and come in a variety of frequencies or with multiple cores.

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Why do lightdm and Xorg cause so much CPU load on my Xubuntu 20.04?

What is it that loads the CPU so unreasonably? (Lenovo W530 with Xubuntu 20.04.4 LTS, currently using kernel 5.4.0-110-generic x86_64). After an upgrade, the CPU on my Lenovo W530 laptop spins at an ...
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Ubuntu Intel CPU often dropping to 400-600Mhz

I run Ubuntu 22.04 on my Lenovo Thinkpad T15 Gen 2 and for some reason, my Intel CPU frequency often drops to the range of 400-600Mhz I'm not sure why is this happening? What makes it even weirder, is ...
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Why the same tasks cost differerent CPU on linux kernel 4.9 and 5.4?

My application is a compute intensive task(I.e. video encoding). When it is running on linux kernel 4.9(Ubuntu 16.04), the cpu usage is 3300%. But when it is running on linux kernel 5.4(Ubuntu 20.04), ...
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How to clean up Ubuntu 22.04 active services that are not needed when used as a virtual machine and only for light predominantly non-GUI usage?

I'm using Ubuntu 22.04 in a relatively light fashion. My use case is in a virtual machine that runs all of the time, but very occasionally I need to use the graphical user interface. I did this on ...
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Cpu fan speed running low

I'm using Ubuntu 22.04 LTS. Sometimes when I run a heavy process my CPU temperature reaches 90-95 Centigrade degree but fan speed is 4500RPM, sometimes I saw fan runs up to 5100RPM but at highest ...
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High CPU using due to unknown process in Ubuntu

I have a Linode web server which runs a DJango web application, but suddenly I am receiving unexpectedly high CPU usage due to some unwanted processes as shown in the image below. CPU[|||||||||||||||||...
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How to stop a process named "Code" that has high CPU usage?

I have one process named "Code" that has high CPU usage. I don't know what this process is and how I can stop it. Can you help me fix this?
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How does Ubuntu 22.04 handle power modes?

As you've probably noticed, power mode option has been added to new Ubuntu . I wonder how this feature works. I mean, what happens when you put a machine into whether power saving mode, max ...
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Main process, not Main Thread

Fresh installation of 22.04. I noticed the PC was a bit slow and I opened the System monitor. Here the processes tab: This main process that eats up about the 25% of the CPU(s). I don't think is ...
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Tracker miner uses almost all my CPU and fills syslog with errors

I've been working with huge data last week and at some point while procesing this data, tracker-miner started using almost all my CPU and now is filling my syslog with the same "error". I've ...
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cpu usage high when playing games

So I just changed to Ubuntu from Windows 10 and I installed some games like Hoi4. So I boot up the game and the CPU usage is at 99 percent and my game is lagging so much it's unplayable. On Windows, I ...
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how to extend gpu and cpu from physical drive like swapfile

starting from this answer https://askubuntu.com/a/1229795/966305 I have a machine running ubuntu lts whenever I run any program that is GPU comsumer like chrome or blender everything stops working {I ...
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Ubuntu 20.04 with AMD Ryzen 9 3900x not all cpu cores are detected (only 12 out of 24 cores detected)

Ubuntu 20.04, 5.13.0-39-generic AMD Ryzen 9 3900x (12c/24t), B550 Aorus pro (rev 1.0). with recent updates 12 cores out of 24 are not detected. htop only shows 12 , where as it used to show 24 core ...
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Error 502 Bad Gateway while my CPU and RAM are at 50%

For a while, my server has been returning 502 Bad Gateway errors randomly during the day. Sometimes we have the same traffic and everything is fine, other times it causes 502 errors. I have a web ...
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Alder Lake 12 gen laptop 400 Mhz

laptop MSI gs66 12700, ubuntu 20.04, kernel: 5.17.0-2.3-liquorix-amd64 after power disconnect CPU down to 400 Mhz and not recovering after power connect. in result system working slow, only reset ...
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Optimize thermal daemon

I just discovered thermald for preventing machines from overheating. I'd like some basic suggestions on how to modify the xml configuration file. Below is the one I have at /etc/thermald/thermal-conf....
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chrome/opera linkedin triggers high cpu level

I have been using Linkedin from both Opera and Chrome (also Chromium) on Ubuntu both 18.04 and 20.04). I usually keep many tabs open and checking with the Task Manager when I open Linkedin the CPU ...
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How to diminish CPU usage and avoid increasing fan speed?

I have a LeNovo ideapad 330S. Every time some program demands a bit more CPU usage, the fan goes wild. In windows, I would go to the power saving options, and then I would decrease the percentage of ...
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lscpu Tells me I have 8 CPUs (Cores) yet there's 1 socket with 4 cores

I got information on my hardware with lscpu and it says that I have 8 CPUs (cores). Then it said that I have 2 threads per core, which makes sense, but then it said that I have 4 cores per socket, and ...
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Kdenlive Processing threads option not showing up

I was having problems with Kdenlive performance and I saw tutorials showing a "Processing threads" option under Settings > Environment. There is still a "Concurrent threads" ...
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cpu.cpuacct not found in Ubuntu 20

I tried to run a process to monitor the usage of CPUs. The process returned the following error: FileNotFoundError: [Errno 2] No such file or directory: '/sys/fs/cgroup/cpuacct/cpuacct.usage' Then I ...
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Is there an easy convertor between dpkg --print-architecture and uname -m for generic scp?

I want to copy files that relevant to my machines (x86_64 / aarch64) from remote machines. I want to use: scp user@host:*$(uname)* . to copy both wheels and .deb files, e.g.: name-x.y.z-cp36-cp36m-...
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lscpu command shows more CPUs than the model indicates [duplicate]

According to its listing page, my laptop was supposed to have an Intel Core i7-4800MQ, but lscpu indicates it has an i7-4610M CPU instead. Obviously, I was given the wrong product, but I am confused ...
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Run a Command at specific CPU Frequency

I am using liquidctl to control the fans in my PC and I wanted to sync them to my current CPU Frequency so the Fan Speed changes when I change the Frequency using a Gnome Extension. But I dont know ...
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my cpu is currently runnind on 100% when no more process is running, I will add three screenshots of my system it will help you to help me

Resource Monitor: Storage Usage; Process List:
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After each startup after a few minute laptop(ubuntu 20.4) get's so slow

For the last 20days, my laptop has become so slow. I use ubuntu 20.4 lts. My pc has a dual boot with windows 10. I switched to ubuntu but when I start ubuntu fan runs at high speed it does not happen ...
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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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Running time-critical executable (CPU+GPU) I receive huge time divergence among execution runtimes

Under Ubuntu 20.04.3 LTS I am running a multithreading application that is using both CPUs and GPU. My question is that among sequencing identical runs, I get huge time divergence among execution ...
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GeckoMa process seems to consume lot of CPU

I have been getting this weird problem lately, gecko process seems to consume lot of CPU processing , and this is becoming irritating , is there any fix for this and why is it happening ? PID USER ...
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read cpu frequency from cpufreq-info vs /proc/cpuinfo

Ubuntu 20.04 Comparing the following two ways of getting current cpu frequency: cpufreq-info | grep "current CPU frequency" example output: current CPU frequency is 4.16 GHz. current CPU ...
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Ubuntu 20.04 Multicore CPU scaling/frequency issues on i7-10510U

Firstly, I will state my specs: Intel i7-10510u with Intel UHD 620 graphics, AMD Radeon 610 dGPU, 256 GB Kioxia SSD,8GB RAM I have a Dell Vostro 3590. From my observations, individual cores do boost ...
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Ryzen 5900X CPU governors not available, and can't change

$ systemctl status cpufrequtils.service ● cpufrequtils.service - LSB: set CPUFreq kernel parameters Loaded: loaded (/etc/init.d/cpufrequtils; generated) Active: active (exited) since Wed ...
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not able to change cpu governer

i'm currently using ubuntu 21.10 and i'm relatively new to linux so i'm not exactly sure how to change stuff but here's what i did seeking answers on diffrent forums cpupower frequency-info analyzing ...
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3 votes
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lm-sensors: From sensors command, what is "Package id 0"?

When I run sensors on my xubuntu machine, I get the following: coretemp-isa-0000 Adapter: ISA adapter Package id 0: +80.0°C (high = +100.0°C, crit = +100.0°C) Core 0: +80.0°C (high = +100.0°...
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5 votes
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Is it possible to install intel-mkl on Ubuntu 18.04 LTS?

I know that this package is available via official repository only from Ubuntu 20.04 LTS and in newer versions.
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Easy way of limiting my laptop CPU fans?

Is there an easy way to limit my max CPU fan speed, without affecting the fan itself on lower loads? Preferably a tool with a GUI, or a CLI but without digging into multiple config files that could ...
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Limit the sum of 2 processes cpu usage?

2 processes, call it A and B A has high priority,B has low priority I want to limit total cpu usage of these 2 processes under 80% Sometimes A has nothing to do,cpu usage is 0%, at this time, I hope B ...
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CPU temperature high in Ubuntu, but not Windows

Three days ago I started noticing my CPU fan loudly winding up and down when idling (with which I mean not running any particular program). I checked the CPU temperature which was and still is ...
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CPU frequency capped permanently until reboot

I have an old spare Dell V131 that I use sometimes and after a while of being on, it caps CPU frequency to its lowest (800 Mhz) and stays there. The variable # cat /proc/cpuinfo | grep -i "cpu ...
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Can't install any linux OS on my server - BUG: soft lockup - CPU#0 stuck [duplicate]

I have been struggling for a while, and any help would really make my day :) Thanks. Server Hardware: Dell R5500 Poweredge 2x: Intel Xeon 5000 128gb DDR3 RAM Unknown shitty GPU (i think Nvidia) 4x: ...
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lm-sensors not working on new Server

I have a new Server here freshly installed with Ubuntu Server 20.04 LTS. After booting into the System the Fans get faster and faster until the spin at 100% it seems. I've installed lm-sensors and ran ...
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Raspberry Pi 4B cpu clock to 1800Mhz in Ubuntu server

We see in Debian BullSeye cpu clock to 1800Mhz. Is it possible to do this in ubuntu server. Do we need overvoltage? News link: https://www.raspberrypi.com/news/bullseye-bonus-1-8ghz-raspberry-pi-4/
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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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psensor stopped showing CPU temperature after AMD Ryzen upgrade

Recently I've upgraded my AMD Ryzen 5 2600 CPU to AMD Ryzen 5 5600x. psensor used to show the CPU temperature properly with the 2600, but after the upgrade, all I see is "temp1 0 degrees" (...
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Which Ubuntu Version Will Work Best with 1.6MHz Dual Core Celeron N3050 [duplicate]

It seems the 'formal'requirement for Ubuntu 20 is a 1.8GHz dual core Celeron. For lightweight work (web browsing, file transfers, downloads) would a 1.6GHz dual processor be OK?
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Laptop fan runs at full speed for a few minutes on startup

My current laptop is an MSI but I've also encountered the same issue on a MacBook Pro & a Samsung laptop. All have dedicated GPU RAM. Running Ubuntu 21.04, Intel i7, 32GB RAM, NVIDIA GeForce RTX ...
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intel_pstate driver not being loaded when added to grub file

I have a Processor Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz Memory 16305MB (2531MB used) Machine Type Laptop Operating System Ubuntu 20.04.3 LTS In my /etc/default/grub file I have the line ...
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2 votes
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Intel tiger lake CPU not downclocking

I have Kubuntu 21.10 installed on an HP laptop with a core i5 11th generation. The problem is that battery drains faster than it should. After investigating the issue it turned out to be the CPU not ...
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Can I install Ubuntu 20.04 on a system running Intel Alder Lake architecture

Intel Alder Lake has a new power + efficiency core architecture. As I understand it, the Linux Kernel does not currently support it. Could I still run Ubuntu LTS on this hardware. What would the ...
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How to kill a process that autostarts

Recently I started managing a server (hostsed by a cloud provider) for my work. Problem is that the server is injected. Within now and a few months the server will be replaced by a new one in order to ...
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