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 sum of this process CPU(%) is not equal to total cpu(%) utilisation in top output
In the attached image of top command output, you can see the idle is 53.3% means CPU utilization is 52.7% but, sum of CPU% of all the process listed (Image cropped for CPU% > 0.0) is more than the ...
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Ubuntu 22.04 which sensor temperature is the CPU? [duplicate]
The sensors command lists the temperature of various components in the system, but which one is the CPU? How to link these labels with system components?
sensors
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How to tune CPU Usage granularity?
It is about getrusage.
It works well but precision/granularity is not precise enough.
It does not depend on CPU and its performance. Depends on kernel only.
For actual kernel 4+ the precision is 3800 ...
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Upgrading CPU made Ubuntu slow
I upgraded cpu 3900x to 5950x and the main Ubuntu 20 guest machine I am using became slow. I see tearing when dragging window.
I have 128GB of ram 80dedicated to this guest. Storage is on NVME.
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ASUS Vivobook 14 Overheating Issue on Ubuntu 22.04 with Ryzen 7
I'm encountering an issue with my ASUS Vivobook 14 M1402IA-AM173 running Ubuntu, equipped with 16GB RAM and a Ryzen 7 4800Hs processor. Just to clarify, I'm using the default power management settings....
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Can't get CPU temperature
I'm having trouble getting the temperature of the CPU.
I tried using lm-sensors, but it does not find any module (I did the configuration and kmod start).
I checked the local files located here: /sys/...
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How cpu core frequencies, percentage cpu and memory utilization, processing load and temperature affect app performance?
I am trying to benchmark two machines for my app.
Two machines differ mainly in their peripheral connections and have same processor, memory and secondary storage.
I did four different types of runs:
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fsicapd command has high cpu load while idle
The CPU load of my computer is high without me doing any major activity (even if I am not using it at all). The computer fan is running at high power to try to cool down the computer.
When I check ...
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Why my CPU frequencies high but application performance is poor
I have two similar raspberry pi running Ubuntu with little difference in their configuration. I am trying to monitor their performance for running my application. So I am running my app on both ...
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cpufreq-set not taking effect on fixing CPU frequency on ubuntu 20
I need to set a fixed frequency on my CPUs for a research project.
I'm using Ubuntu 20.04.5 LTS (GNU/Linux 5.4.0-155-generic x86_64) and an intel CPU Xeon W-2155 3.3GHz.
I'm trying to use the ...
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Ubuntu 22.04: xfce4-panel shows high cpu, possible fix?
When using xfce as GUI for ubuntu 22.04 I sometimes get high CPU usage according to htop, sometimes over 60%.
I use Ubuntu 22.04LTS and xfce4-panel 4.16.3 (Xfce 4.16)
I have searched the internet, but ...
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Ubuntu 22.04 : Laptop don't wake up after suspend
I have a problem on an Asus VivoBook 17 on Ubuntu 22.04 (clean install)
Everything seems to work fine, except suspend mode : after, the computer doesn't want to do anything : black screen (as in ...
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Explain different sensor on psensor
What sensor here shows the GPU temperature? I figured Tctl and Tccd1 is CPU, but I could not find online what the other sensors are for. I would greatly appreciate if someone could explain them in ...
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Ubuntu 22.04 - CPU constantly running too hot at 90°C
the output of sensors is constantly looking something like this with regular spikes over 90°C or 95°C for multiple seconds.
This does not seem healthy for the life of the CPU.
I am using a ThinkBook ...
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Exceptionally low CPU performance [22.04.2 LTS]
got a new machine to work with GNUradio (all dependencies met, worked on a few other machines before just fine), yet it runs so slow that it's impossible to work with (especially FFTs). Did CPU ...
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How many physical CPU sockets can ubuntu desktop support?
I was wondering how many cpu sockets Ubuntu would be able to support because im picking up a new server soon and would like to test some software on it, thanks!
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Fan speed always at maximum, how to solve?
Suddenly during use the fan starts and stays at maximum.
I notice from the report below that the temperature is very high. How can I isolate the problem?
inxi -Fxpmzr
System:
Kernel: 5.19.0-45-...
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CPU overheating, Ubuntu, 92C
just moved from Windows to Ubuntu, installed some tools, porting my c++ app in a few days my laptop feeled overheated Sensors output below https://ctxt.io/2/AABQ-PCsEg
I measured temperature on ...
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How to change the default temperature from Celcius to Fahrenheit in Kubuntu?
I've recently switched from Windows and installed Kubuntu and I was wondering if there was any way to change the CPU temperature in the System Monitor and any widgets to F instead of C? Any help would ...
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How to prevent thinkbook 16 laptop from underclocking and staying at low temperature?
Recently I have purchased Lenovo Thinkbook 16 G5+ IRH with Intel i7-13700H processor.
While I was stress testing CPU on AC, its frequency reached 4.0GHz for a short time and hit 90C, and then it ...
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How to get the machine specs from the terminal?I [duplicate]
Is there a quick way to get the machine specs from the terminal? (GPU model, memory, CPU model, memory etc).
I am getting the info bit by bit by different commands such as lscpu and lspci but cant get ...
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Suspicious file under /usr/bin in Ubuntu 20.04
I have seen one of the process consuming 40% of the CPU. Up on check there is a file /usr/bin/ujwjzppyff running with "grep -A" command.
file /usr/bin/ujwjzppyff
/usr/bin/ujwjzppyff: ELF 32-...
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Only three options for CPU frequencies in Ubuntu 22.04 (AMD Ryzen 3 5300u)
I tried installing indicator-cpufreq to set a custom frequency, but I am only getting three options(image bellow).
options in indicator-cpufreq
Also, I tried running this in terminal:
cat /sys/devices/...
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Ubuntu flqvour eqsiest on cpu
I have this macbook air from mid 2011 and I want to use an ubuntu based distro on it. At the moment I'm using kubuntu but my one problem is that my cpu sometimes has alof of difficulties keeping up ...
user1703853
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Disabling CPU frequency scaling Ubuntu 20.04
I'm using Ubuntu 20.04, and following this tutorial to disable CPU frequency scaling.
I have done:
sudo systemctl disable ondemand
sudo systemctl enable cpufrequtils
sudo sh -c 'echo "GOVERNOR=...
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No CPU/GPU temp
Since the upgrade to 22.04, my CPU/GPU temps are not available. When attempting to configure the widget, only disk drives appear. It would be nice to monitor the temperature again.
CPU:
AMD Ryzen 3 ...
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How to change maximum allowable CPU frequency?
I want to permanently change the maximum allowable CPU frequency as some code changed it so I am constantly overheating my CPU. Can someone help me out with this problem? My changes to the new maximum ...
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How can I turn on cgroup v2 CPU controller on modern Ubuntu?
On Ubuntu 22.04, I get:
# cat /sys/fs/cgroup/cgroup.controllers
cpuset memory hugetlb pids rdma misc
I really need cpu contoller. Could you, please, help on how to enable it?
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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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CPU Loongson works with Ubuntu?
Ubuntu supports that CPU?
Someone tried how works?
https://en.wikipedia.org/wiki/Loongson
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CPU usage when GUI is on vs GUI is off : Ubuntu 20.04 and Raspberry pi 4
Myself going to use Raspberry pi 4 (8gb ram) with ubuntu 20.04 installed in it, for my projects using ROS. I will use the GUI for some main debugging purposes, or else I would stop the GUI and prefer ...
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Have can I "disable" these local timer interrupts after isolating cores?
I am trying to isolate CPU cores from the scheduler and any other unwanted activity. I have already set a few parameters on the kernel command line and updated grub:
cat /proc/cmdline
BOOT_IMAGE=/...
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Ubuntu 22.04 LTS consuming high CPU and RAM on HP EliteBook x360 1040 G7
I am experiencing an issue with my HP EliteBook x360 1040 G7 that's running Ubuntu 22.04. For the past few days my PC has been consuming high amounts of CPU and RAM, causing it to overheat and display ...
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Two conditions in if statment
I'm struggling in if statment
I want the message "The system is highly utilized" pops whenever the memory usage or cpu usage exceeds 70%, now i tried the following 2 conditions in if ...
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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 monitor cpu and memory usage?
How to write script monitoring cpu and memory usage then prints a warning when usage is 70% (red warning)?
EDIT:
cpuUsage=$(top -bn1 | awk '/Cpu/ { print $2}')
memUsage=$(free -m | awk '/Mem/{print $3}...
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Make indicator-cpufreq start automatically with "Performance" mode Xubuntu 22.04
Every time the system is started, the mode is reset to "schedule". I need the mode to always be set to "Performance". In other words: so that the change of mode to "...
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How to disable frequency boost and hyperthreading
I'm trying to disable both hyperthreading and frequency boost to benchmark some code. Because I cant find anything about this on the BIOS, I ran lscpu to get some information about the CPU (AMD Ryzen ...
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High CPU used and battery drain First tracker and now Isolate+. What is happening?
I have an HP Elitebook. Few weeks ago I started to hear the fan working often. Using top I noticed that "tracker" was using almost all of the CPU. I fixed with a solution someone posted here:...
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cpu max frequency is actually the base frequency
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us
...
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GZIP process takes CPU usage 100%
GZIP uses 100% of the CPU.
I tried using pstree -apl to get which processes needed the GZIP, and I found Logratate.
Have some people experienced this? And how did you solve it?
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Ubuntu 22.04.1 throttling cpu from 4000mhz to 400mhz-1000mhz even under high load
My main laptop runs Ubuntu 22.04.1 on an Intel Core -7-11370H CPU @ 3.300GHz. I usually use it to code and play games, but whenever I run the laptop, it just randomly fluctuates from 4.0 GHz to 800 ...
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ERROR When attempt to run Linux VM on Mac (VERR_UNSUPPORTED_CPU) [duplicate]
My Ubuntu version is Ubuntu Desktop 22.04.2. My OS is macOS Monterey 12.2. I am a complete beginner to Linux and im trying to learn a bit more about it since it's a very in-demand OS. When I attempt ...
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Display Alseye M120 Plus temperature on the command line
I'm newbie in this forum, although I've been using Linux flavors longer than a decade now.
I have decided to give a fresh looking to my hardware and got an RGB CPU fan which has a little screen to ...
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Ubuntu Frame - wpe-webkit-mir-kiosk high CPU consume
Good Morning,
I installed correctly Ubuntu-Frame on my machine, I used the Ubuntu documentation to do it,
It worked fine, and it was easy to do, in fact I did it with a RP4 the last time and works ...
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Why sum of all process CPU(%) is greater than total cpu(%) utilisation in top command [duplicate]
In a top command instance, the CPU utilisation (100-idle) was 14% but the top most process "Chrome" alone consumes 253%. I am unsure of how the chrome process consumes CPU more than 100%.
...
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Cannot see Ryzen 7700 integrated gpu driver - ubuntu 22
Is it a rule that AMD on Linux always has problem?. I am testing the latest ubuntu 22 kernel however it can't see the graphics card instead in the Display section I have Unknown Device so I can't even ...
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Why sum of all process CPU(%) is not equal to total cpu(%) utilisation in top output
In the attached image of top command output, you can see the idle is 96.8% means CPU utilisation is 3.2% but, sum of CPU% of all the process listed (Image cropped for CPU% > 0.0) is more than the ...
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Mongo DB crash by a peak of the CPU Ubuntu 18
Update: As requested I am using 18.04.2-Ubuntu and about the MongoDB
I have a virtual machine running several Node JS projects and a local instance of Mongo DB. The virtual Machine has only 2 GB of ...
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WSL2 Ubuntu 22.04.2 LTS Performance Mode
Is there a way to set WSL2 Ubuntu 22 to performance mode? I know the original version of the OS you can just set it to performance mode but I'm not sure how to do it through WSL2.
When I run
grep &...
