Questions tagged [cpu-load]

The system load is a measure of the amount of work that a computer system is currently performing.

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Very high system load on Ubuntu 22.04, probably related to mounting Samba/CIFS shares and kernel 6.5.0-15, why? Problems started in January 2024

The short version: I have a very high system load (load is 17 with 4 CPUs), and cannot pinpoint the reason, on a 22.04.3 system with kernel 6.5.0-15-generic. But it appears to be related to the number ...
10 votes
1 answer
15k views

Firefox: "isolate+" process CPU usage 100%

I have a completely new Ubuntu install with Firefox. When browsing on my usual sites, I get over 100% CPU usage due to the process "isolate+". Google has been completely useless. I have ...
1 vote
0 answers
51 views

strange process take a lot of CPU ! virus?

I have Ubuntu 22.04 server, running Apache, MariaBD, PHP, and a web app, facing to the Internet. Recently, the server always run 99% CPU, top command give the output as attached picture below. The dev ...
5 votes
2 answers
10k views

multi-core CPU usage

I am using the Windows Subsystem for Linux (WSL), and I am unexperimented in the capabilites of linux. Recently, I've been wanting to get better insight in the CPU usage of processes, but I am getting ...
8 votes
0 answers
1k views

constant CPU usage by gvfs-udisks2-volume-monitor

since more than one month I see this process "gvfs-udisks2-volume-monitor" using one of my cpu-cores constantly between 25 and 50 %. I'm running Ubuntu 22.04.3 LTS on Linux 6.2.0-35-generic, ...
87 votes
2 answers
59k views

How to identify which Chrome/Chromium tab is using up CPU?

I sometimes have a bunch of tabs opened in Google Chrome, which I believe creates a new process per tab. I would like to be able to identify the tab that is using up the CPU. Is there an easy way to ...
0 votes
1 answer
194 views

CPU Throttling on Ubuntu 22.04 (ok on 20.04)

I've made a fresh install of Ubuntu 22.04 on Lenovo Yoga X390 (previously using Ubuntu 20.04, which worked satisfactorily for a long time). The hardware configuration didn't change; the CPU is i5-...
1 vote
1 answer
89 views

rygel and tracker-extract-3 load one cpu thread on 100%

I'm worried about these two processes because they cause my water cooling to work almost at maximum, and it is very noisy. The system was not modified in any way except for installing a vlc, pass, ...
1 vote
1 answer
5k views

Kworker consumes ~80% of 1 CPU core, how to get rid of this once and for all?

Kworker takes about 80% of CPU1 each time I boot the system. I tried to do as explained in this answer. Here's the output of grep . -r /sys/firmware/acpi/interrupts: root@fmcomp:~# grep . -r /sys/...
0 votes
0 answers
34 views

Dock extension causing high gnome-shell CPU usage

I am running Ubuntu 22.04.3 LTS on a Dell XPS13. Ever since upgrading to 22.04, I've had trouble with gnome-shell using excessive amounts of CPU (upwards of 80-90%). In order to pinpoint the problem, ...
11 votes
2 answers
11k views

Avahi daemon uses excessive amounts of CPU?

It seems that avahi-daemon process, which is unknown to me, is using excessive amounts of CPU on my system I have tried both htop and system monitor, and only htop show the CPU use. Screenshots are ...
1 vote
2 answers
239 views

What is /var/tmp/php-fpm ? This command is consuming high % of CPU

Somebody kindly explain what kind of a file is /var/tmp/php-fpm and its uses? This command is consuming high CPU percentage when I checked using the top command. The file gets recreated even if I ...
1 vote
1 answer
413 views

High CPU usage (gnome shell, firefox)

This is a 4 cores 8 threads cpu machine which i monitor with Htop, Ubuntu 22.04, updated. Firefox is opened with a LAARRGGE number of windows and tabs (do not ask how many); Thunderbird is running, ...
0 votes
0 answers
616 views

Ubuntu 20.04 using full CPU usage

I have strange issue from last one day my ubuntu server machine using 100% of CPU resource, htop shows service gsd (gnome service daemon) is using full CPU. Please confirm which service it is and how ...
0 votes
2 answers
3k views

How to balance CPU cores loading for one process

When I only ran a real-time process and used 'top' to monitor CPU usage. I found CPU % usage is not balance for each core and the loading was concentrated specific cores. How can I achieve this ...
0 votes
0 answers
104 views

Ubuntu 22,04 server on digital ocean - daily spikes. why?

Once a day,for about an hour, cpu usage approaches 100% and disk i/o is about 400MB/sec (read). I will generate and analyse some performance metrics, but wonder if someone knows the answer to this off ...
1 vote
1 answer
339 views

System Monitor and top reporting wildly different cpu usage for process

When I monitor a process using top command it returns the CPU usage for the process like 99.5%. But when I monitor a same process using system monitor (Process tab) for the particular it shows 25%. ...
0 votes
0 answers
154 views

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 ...
1 vote
1 answer
521 views

CPU overloads with fans running high speed when laptop is plugged in to the power

I have a MONSTER TULPAR T7 V20.5 laptop(a foreign brand). I have Ubuntu 23.04 installed with the kernel version of 6.2.0-20-generic x86_64. The problem is CPU overload when the laptop is plugged into ...
0 votes
1 answer
402 views

sddm-greeter cpu usage, lxqt

I've got an annoying issue that I am trying to troubleshoot and could use some help! I have 10 lxqt VM's managed via proxmox on a rather old machine. The OS needs to be very light and low on resource ...
9 votes
4 answers
4k views

What is .dhpcd command and how to disable it?

Nowadays, my laptop frequently uses high %CPU (300%). I noticed that .dhpcd is involved in high %CPU. I could kill the process without any issue. However, it turns on automatically in about every 30 ...
20 votes
4 answers
17k views

unattended-upgrade CPU 100% for 4 hours (every time) [in case of many routing tables]

Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic During unattended-upgrade the CPU use 100% of resource for 4 hours Example: $ unattended-upgrade ...
5 votes
2 answers
5k views

Ubuntu 18.04 /w Macbook Pro: Kworker keeps hogging up my CPU

Just thought of dropping a question since this problem seems to have been around for quite some time. Just now I have installed the new Ubuntu 18.04 on my Macbook Pro, and I notice the kworker ...
13 votes
3 answers
6k views

Super high CPU usage randomly starts when using Zoom, and doesn't end until I restart

Update: Live screenshot of when it happens So... When I'm using Zoom, most often during screen sharing, or when someone else is screensharing, all of my cores zip up to 100%, as in the screenshot ...
0 votes
2 answers
201 views

How to troubleshoot extremely high load averge (over 550)?

I am Ubuntu 18.04 user, running in OVHCloud Datacenter for 3 years with PHP Application and Mysql server on it. For 2.5 years, everything was ok, but in last 6 months i have strange issuee: Every 4th ...
6 votes
4 answers
5k views

check which process cause high cpu utilization in last 24 hours

Is there any possible command or way to check which process caused high cpu utilization in last 24 hours , because last night at 11:30 pm date:-30-nov-2022 we got alert that cpu utilization was high , ...
0 votes
0 answers
250 views

Chrome and Firefox max out CPU usage after recent update, rendering computer unusable

I have system that is several years old and has been running well. A while ago I updated the OS 20.04.5 LTS and things still seemed pretty good. More recently I approved a normal suggested update that ...
1 vote
1 answer
67 views

Using ERGO WO2-CRC9 USB Modem/Roater make my laptop very hot and power-consuming

I'm LUbuntu 22.04.2 LTS user. When I insert ERGO LTE USB Wi-Fi router WO2-CRC9, the laptop (HP Probook) stays very-very hot independently on the current load, the fan runs continuously, and the ...
0 votes
0 answers
305 views

Crypto-mining maleware that disable input and output devices

I recently find my computer monitor sometimes shuts down itself and cannot be wake up by tying on my keyboard or my mouse. I turned off and on the monitor, but it shows 'no input signal'. I changed ...
3 votes
1 answer
4k views

kworker eating 85% CPU 1 most of the time!

I'm running Ubuntu 18.04, kernel 5.4.81, and kworker/0:1+kac is using 85% CPU 1 most of the time. Here is some useful info: top output: System Monitor CPU load: perf report: Samples: 56K of event '...
0 votes
0 answers
1k views

pmd high CPU usage

For a couple of days my laptop has been consuming a lot more power than before, noticeable by how fast the battery runs out when not plugged. This is matched by periodic (~20-30s) fan noise spikes ...
1 vote
0 answers
736 views

Gnome shell uses excessive amounts of CPU?

I'm running Ubuntu 22.04LTS, with only the Built-in extensions (i.e. Desktop Icons, AppIndicators and Dock) installed. Since updating to 22.04 I noticed that my mouse would begin to stutter frequently,...
91 votes
9 answers
98k views

Ubuntu 18.04 gnome-shell high CPU usage

I installed 18.04 from 17.04 (passing briefly through 17.10, didn't test it and jumped to 18.04) and I am experiencing a high cpu usage on gnome-shell, it takes almost all available CPU time: $ top ...
1 vote
0 answers
203 views

High CPU usage after Nvidia driver update in 22.04.1 LTS

I recently updated the OS on my Lenovo ThinkPad P51 from 20.04.3 LTS to 22.04.1 LTS. Everything was working normally after the update, except that a particular graphics-heavy website wasn't working ...
0 votes
1 answer
108 views

after changes in CPUQuota my system became very slow

I changed the CPUQuota=50% so that my system could use mimimum CPU resources but due to these changes my system became very very slow could anyone please help me to revert these changes and bring my ...
21 votes
3 answers
15k views

check-new-release process eating up resources on Ubuntu server 13.04

A small Ubuntu 13.04 virtual machine instance I run in a cloud environment regularly becomes slow/unresponsive because of a proces called check-new-release. Is there any way to disable this process ...
48 votes
6 answers
127k views

How to log CPU load?

How to log CPU load to a file in order to investigate a problem?
266 votes
9 answers
340k views

tracker-store and tracker-miner-fs eating up my CPU on every startup

Whenever I start my laptop the process tracker-store and tracker-miner-fs eats up my CPU between 30-40% for 10-15 minutes. I am on ubuntu 12.04. What does these processes do? How to get rid of ...
0 votes
1 answer
313 views

CPU usage on dual socket motherboard

Ubuntu's system monitor shows CPU usage for each core separately. I have a motherboard with two CPU sockets and want to know how much CPU on socket0 is loaded and how much CPU on socket1 is loaded. ...
0 votes
1 answer
120 views

Efficiently get PID's in certain ports from java

I know sudo lsof -t -i:{port} will give the list of PID's involved in that port and I can run this command via java by Runtime.getRuntime.exec() command. But the thing is I have thousands of thread ...
5 votes
1 answer
1k views

Why does gedit use too much cpu when minimised?

The text editor gedit in ubuntu takes up 30 to 50% of my cpu when I keep it minimised. When I maximise it to use it again, the cpu usage drops to zero. This happens even when gedit is idle without ...
0 votes
1 answer
399 views

400% CPU usage on Linux server

Recently we moved our full stack website to new server (Vultr instance). After moving to new server we are constantly getting 400% CPU usage issue. It's been fifth day since we are getting 400% CPU ...
1 vote
1 answer
667 views

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 ...
1 vote
1 answer
437 views

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 ...
38 votes
8 answers
79k views

Why is Xorg taking up so much memory and CPU?

I recently reinstalled Ubuntu 11.04 Natty after a massive hard drive failure. Now, for some reason, compiz and Xorg decide it's a fun idea to start eating up my RAM and CPU - GB by GB. Starts out at ...
0 votes
0 answers
474 views

Unknown process using high amount of CPU

My CPU usage is reporting as running at 100% Running top -i I get PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3696734 root 20 0 2492344 6456 3504 S 1143 ...
2 votes
1 answer
4k views

Sublime Text: see how many resources each plugin is using

How can I see how many resources each Sublime Text plugin is using?
1 vote
0 answers
133 views

Constant high CPU usage because of sound card interrupt

One of my 16 CPU cores is always working at around 50% CPU capacity. There is nothing showing in htop or top which indicates a high usage, so I started digging and found with (cat /proc/interrupts) ...
0 votes
1 answer
499 views

cmake consumes 100% of CPU

I noticed a very high CPU usage on Ubuntu 20.04.4 LTS (GNU/Linux 5.4.0-125-generic x86_64). Using htop I can see 3 processes with the command: /usr/share/[cmake] --config=/usr/share/[cmake].pid which ...
0 votes
1 answer
1k views

How to get (from terminal) total number of threads per core?

I want to know how can I get the total number of running threads per core (in the runqueue) in the terminal (to be used in a bash script)?

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