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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Ubuntu 18.04 LTS on a MacBook 5, 1 (late 2008 unibody). Poor performance. Is it to be expected on a 11 or so year old laptop?

Note: I am more interested in the theory behind any answers. I am interested to know if such perceived poor performance is expected. Can it be due to aged hardware, etc? This is a secondary laptop and ...
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Own Python app + other apps makes system freeze - where to start searching for issues?

I wrote a long-running (hours/days) app in Python which takes 100% CPU on one core and around 1GB of RAM - as intended. (load at around 1 according to htop) Usually, I don't use the Kubuntu 19.04 HP ...
Chris's user avatar
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unattended-upgrade taking a lot of CPU power

I've recently upgraded my OS from Ubuntu 16 LTS to Ubuntu 18.04 LTS and it's been a few days that the process unattended-upgrade is taking a lot of CPU power, forcing my fan to be quite noisy (cf ...
Jeanba's user avatar
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multipassd uses 100% of cpu core

I run Ubuntu 18.04.3 LTS on a Dell Latitude 5491 After each restart the cooling fan works hard. The CPU usage is about 100% for one core by multipassd. %CPU %MEM TIME+ COMMAND 99,7 0,3 1:18....
Pep's user avatar
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Ubuntu VPS CPUs sometimes go wild with a process I don't recognize

My VPS sometimes goes wild because of: /tmp/.X17-unix/.rsync/c/lib/64/tsm --library-path /tmp/.X17-unix/.rsync/c/lib/64/ /tmp/.X17-unix/.rsync/c/tsm64 -t 302 -f 1 -s 8 -S 8 -p 0 -d 1 After killing ...
Amos's user avatar
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When I lock my PC, the fans get very noisy as if there was some kind of a rogue process

The moment I lock my PC, the fans get really noisy, which means there has to be some kind of CPU/GPU load behind the scenes. I told myself, I need to know, what process is doing this, so I've crafted ...
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Is it possible to patch without spiking the CPU? [duplicate]

I'm using unattended upgrades to patch about 300 ubuntu (16.04 LTS) machines (network appliances really), some are 1 CPU VMs running on ESXi, azure and AWS and others bare-metal quad core Atom IOT ...
Peter Turner's user avatar
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Ubuntu High CPU usage because of mysql.pid

Ubuntu High volume cpu usage Cant find why mysql.pid use 95% of my cpu Machine Spec: 6 vCore /16 GB Memory / 320 GB Disk / SFO2 - Ubuntu 18.04 x64 Here is my mysqld.cnf # The MySQL database ...
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how to enable cpu parallelism on ubuntu 18.04

I have a question about multicore cpus I have a multicore cpu on ubuntu 18.04 OS How can I get a good performance on heavy process? I think about cpu parallelism... is this make work every core at ...
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Blender (and others) video editing: slow and/or bumpy playback - 100% CPU load

I use Blender for Video editing on Ubuntu 18.04, and whenever I playback the video I’m working on, the CPU load hits 100% and the playback is slow or bumpy or both. This happens even if there is only ...
Ole Olsen's user avatar
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Why is xdg-mime using so much CPU?

Every time I start Discord, I see four processes called xdg-mime appear in the System Monitor, each consistently using somewhere between 20-25% of a CPU. What are these processes, and what are they ...
Draconis's user avatar
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Calculating CPU Usage from 'sar'

I started using Linux OS a while ago so, I am a beginner. I wanted to collect total CPU for a given process into a file with a given interval. For that reason I am using sar utility. cpx@cpx-...
cpx's user avatar
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Ubuntu 19.04 Xorg cpu usage after sleep

I recently updated to 19.04 from 18.04 with a fresh install, because it was going very slow (not sure what the reason was, possibly something I did wrong). But from day 1 on ubuntu 19.04 I noticed it ...
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High CPU load and temperature after installing Flatpak - Ubuntu 18.04

I did install Flatpak with its official Quick Setup. Also I've read somewhere else how to setup Nvidia driver on Flatpak (sadly I have an Nvidia Optimus video card!). Everything was easy and like a ...
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Ubuntu 19 kidle_inject process

i have a friend of mine which have a brand new ASUS laptop. I tried to use Ubuntu 18 which works fine on my ASUS laptop, but on his laptop, the screen was freezing maybe because of not supported ...
Bouchez Benoit's user avatar
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High CPU usage systemd+

I updated my Ubuntu from 16.04 to 18.04. After the update I noticed that the CPU usage was going crazy for no reason. Here is the result of "top" PID USER PR NI VIRT RES SHR S %CPU %...
cianibegood's user avatar
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Ubuntu 19.04 lags and high CPU usage

CPU usage sometimes rises to 100% without anything running in the background. Also the animations lag. My rig: Processor : Intel(R)Core(TN)[email protected] Installed RAM: 4.00GB Graphics : ...
Kira Sakura's user avatar
11 votes
1 answer
5k views

Ubuntu 19.04 high cpu use

I have high cpu use in Ubuntu 19.04, and my screen seems laggy. Watching top I see gnome-shell running about 50% very often.
Charles Green's user avatar
2 votes
1 answer
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Ubuntu 18.10 CPU1 always around 100% despite no programs are running

I'm new user who transitioned from Windows and I have this nasty problem since I installed Ubuntu 18.10 on my HP ProBook 450 with I3-6100 with 2 core and 4 threads my CPU 1 is around 100% and CPU 2,3,...
Lovro Saric's user avatar
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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 ...
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RNGD service consuming high CPU usage after pointing /dev/random to behave as urandom

I have executed these commands while installing my application on Ubuntu system. The following commands are specific for /dev/random to behave as urandom sudo rm /dev/random sudo mknod /dev/random c ...
Sachin Aryal's user avatar
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Sudden high CPU usage followed by Input/Output error

First a little bit of information about my system: OS: Ubuntu 18.04 with encryption while installing DE: i3wm (probably doesn't have to with this, because the same problem appears in Gnome) ...
andoril's user avatar
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How to get execution Log of any running applicaion

When I start running application on Ubuntu 16.04, i have face a problem of CPU usage of 100% for each application for long time. I need to get log of that particular application (its execution log) so ...
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CPU usage 100% at runing every application

Whenever the application starts executing(running) the CPU usage touch 100%, and stuck(hanged) the system for some minutes. Even a light text editor CPU usage is 100%. %CPU COMMAND 143 ...
abbasi_ahsan's user avatar
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 ...
Barbaud Julien's user avatar
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 ...
Sim's user avatar
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Ubuntu weird process use 60-70 percent of the CPU

Recently I noticed that my VPS is doing a lot of work, I ran 'top' command and I saw a process with a weird name who using 60-70 percent of the CPU (I attached pictures). When I kill those process ...
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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%. ...
Gowthamy.95's user avatar
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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 ...
donghoon's user avatar
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Variety and convert loads up all cpu

As reported in this question, when changing wallpaper, the application 'Variety' eats all my CPUs computational power, and makes everything lag. Tried reinstalling variety (also from the market) and ...
Exodd's user avatar
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gnome-shell 3.28.2 in ubuntu 18.0.4.01 LTS takes up 100% CPU

gnome-shell 3.28.2 in ubuntu 18.0.4.01 LTS takes up 100% CPU causing poor performance and consistent lag I am running ubuntu under virtual box 5.2.22 with 1 cpu (i7) 4GB RAM, 128MB VRAM, 40GB HDD (...
kash's user avatar
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7 votes
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'/etc/.a/kernelupd /etc/.a/.cf --daemonized' Using 100% CPU

I found this process which uses all CPU Power: /etc/.a/kernel upc /etc/.a/.cf --daemonized I have not started this myself, what is this? It seems to be a kernel update, but as I said. I did not ...
hag o hi's user avatar
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2 answers
2k views

Strange CPU usage behaviour with systemd, sleep, initctl or gvfsd processes owned by user

I have noticed in my 'indicator-multiload' application that my CPU usage some time after booting is raised permanently at about 50 to 100 percent. After running 'top' I can see a process owned by the ...
John's user avatar
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Ubuntu 18.04 Intel i5 4-Cores peaking one at a time

I'm having an issue with different programs making my quad-core i5 peak. Not sure exactly what to do. Any help is appreciated. Update: I was able to break it down to the “gedit” program. It drives my ...
Michael ocasio's user avatar
2 votes
1 answer
319 views

Gnome-shell process has huge CPU usage

My pc was fine yesterday. It was on for about 20 hours and went to sleep mode couple times during that. I noticed my pc was lagging, opened task manager and saw gnome-shell using 4GBs of ram and using ...
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1 answer
1k views

Ubuntu 18.04 takes lots of cpu for every copying procedure

I have worked with ubuntu 14.04, 16.04 and 18.04 (x64) on my laptop and I had the same problem in each one of them. The problem is copying takes CPU and it takes a lot of it. It doesn't matter the ...
tr64's user avatar
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2 answers
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Distribute workload among different CPUs

On my Ubuntu 16.04, I am running a program that is relatively expensive in terms of CPU usage. It takes quite much time to finish, and other tasks (like browsing the web) get slower as a consequence. ...
Py-ser's user avatar
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1 answer
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Is it possible to make Ubuntu always responsive? [closed]

I have been with Ubuntu for over 10 years and I have installed and used it on machines ranging from low-end laptops through mining rigs to i7, 8Gb RAM desktop computers. And on every single ...
Martin Drozdik's user avatar
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1 answer
218 views

How can I identify or find the origin of this mysterious process?

I have a strange process on Ubuntu 14.04 that fires up fairly frequently. It appears as a bash shell in top, I haven't actually located it in ps xfa. When it runs, top says it's using 215% CPU and ...
A.Adverse's user avatar
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2 votes
1 answer
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Java problem with high CPU running Universal Media Server

I have used Universal Media Server for many years to stream family photos, home videos, music and movies to smart TV from desktop PC running Ubuntu (now on Bionic 18.04). The media library is very ...
user824808's user avatar
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1 answer
2k views

CPU core stuck at 100% utilization

I noticed that my laptop's fans were running continuously at high RPM for a few hours. I installed HTOP to check CPU utilization, and found that one of the 8 cores is stuck at 100%. Even after ...
Quest Monger's user avatar
9 votes
2 answers
3k views

After upgrade from Ubuntu 16 to 18.04, systemd-udevd uses 100% CPU

Since I upgraded from Ubuntu 16 to 18.04, CPU usage is high. Sometimes 100% cpu usage, and when that happens we can't do anything. If we check on the process systemd-udevd, we find it is using 100% ...
Shibin Raju Mathew's user avatar
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0 answers
722 views

Ryzen System Freezing When Under Heavy Load

I have been having problems with my system completely locking up (no keyboard or mouse input, no display output change) when the CPU is under heavy load e.g. Tensorflow or Raytracing with Blender. I ...
John P's user avatar
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2 votes
3 answers
2k views

High CPU load while browsing (AMD A6)

My CPU is AMD A6-9220 RADEON R4. I use Ubuntu 16.04.1. No additional (proprietary) drivers available. CPU loads both in Chrome and Firefox, hardware acceleration is off in Chrome. It happens when I ...
R S's user avatar
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11 votes
1 answer
7k views

Xorg: High CPU Usage (94%) on Moving Mouse (Ubuntu 18.04)

whenever I move my mouse enough it causes high cpu usage. Screenshot provided is on a fresh X session. Xorg Taking up a lot of CPU This also causes some frequent freeze ups if I'm running some other ...
Zephyr's user avatar
  • 113
18 votes
5 answers
18k views

Laptop CPU+GPU overheating after update to 18.04 LTS

I had this same issue in my last attempt to upgrade (with a clean install) from 16.04 LTS to 18.04 LTS. When I am browsing internet and specially when I am playing videos my CPU+GPU raises to fast to ...
user3368561's user avatar
1 vote
1 answer
499 views

How to remove OTRS ? (as it uses 20% CPU)

OTRS (Open-source Ticket Request System) is constantly using 15 to 20% of my CPU, making my passive cooling computer too hot. How do I remove it? The daemon name is otrs.Daemon.pl in the Task Manager. ...
Polypheme's user avatar
  • 131
4 votes
3 answers
4k views

non-interactive version of HTOP?

I'd like to periodically get snapshot of per-core utilization to save to file, basically same information as htop. However, htop is interactive so it's not friendly to scripting, is there an ...
Yaroslav Bulatov's user avatar
1 vote
0 answers
381 views

unity-contol-center makes Xorg CPU usage at 100% on 16.04

This is the issue: randomly my PC start to lag and top shows a 100% usage for Xorg. Now, I know that it couldn' be Xorg itself the problem but a call from a client. So I killed everything, one by one, ...
tarzanello666's user avatar
1 vote
1 answer
167 views

Total CPU load won't exceed 90% - is this by design?

Not worried, just curious: I'm currently running Handbrake 1.10 on my new Dell Inspiron 3576 with Bionic 18.04, and I see that all cores are working nice and hard. :) However, with all 8 virtual cores ...
Frank van Wensveen's user avatar

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