Questions tagged [htop]

htop is CLI-based command that gives information on processes and memory usage, similar to top.

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PSI Full IO / PSI some IO meaning in htop

In the above screenshot, i examine a large white bar in the CPU Avg chart. Additional, i see PSI full IO/PSI some IO quite large. I assume the white bar is IO wait of some sort. What exactly does PSI ...
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Why only 1 of 4 core have 100% usage on ubuntu?

I've got problem with my usage when I'm on ubuntu 20.04 becasue my 3rd core in CPU have 100% when I'm doing nothing when I'm playing YouTube everything is lagging I have i5-7500 3.4 GHz and 16GB RAM, ...
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How to monitor system resource usage without showing process list

I want to monitor system resources usage, the htop works very well, but I don't care processes now, is it possible to hide process list parts? Or, is there any other tool can do that?
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CPU usage spikes when browsers are open

My Dell Latitude E6540 has been lagging and hanging with high CPU usage spikes without any load. Firefox regularly spikes with only few tabs open. Also even when switching to other browsers and in ...
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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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On tty1, run "htop" and then "login" on htop exit

Here's what I want: When my Ubuntu server boots, run htop on it's screen. In case of emergency, quit htop will return to tty login. Reply to Commect #1: A dummy user for running htop might be a good ...
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How I can close the preferences windows in ubuntu?

I try closing the window of the preferences in Ubuntu, but it's still stuck, I was used the ALT+F4 to close the window but it's still stuck, tried closing the terminal itself inevitably for closing ...
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Htop shows a mysqld that isn't in filesystem?

Upon cleaning up my filesystem and uninstalling services I don't use, I noticed that 'htop' shows what appears to be a MySQL daemon running at /usr/sbin/mysqld The thing is I don't have any MySQL ...
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Why are processors seemingly so active on an Ubuntu 20.04 Server with no appreciable services running in an LXC container?

On a minimal Ubuntu 20.04 server that's just been set up (and with some services disabled), I'm finding that htop is conveying that there's more processor activity going on than what I figure should ...
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Understanding the Htop output

I am a recent user of Ubuntu. I am running some simulations in my Ubuntu 20.04 which don't run successfully. When I look at the usage, I see numbers like these. Does this mean that my machine is ...
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261 views

How to manage number of cores used on my institution's server

I'm using a remote server where I'm not supposed to request more than 24 of the 100 cores. I'm running a couple of R scripts which seem to be using too many... How can I tell, in htop, how many cores ...
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Overall CPU utilization% of 'htop' is smaller than a process' cpu usage

Because of my stupidity, I can't provide any screenshot of such phenomenon. My 2-core system's cpu utilization(which is output of htop command) is smaller than the cpu usage of a process. For example, ...
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Running htop when system boots (CLI)

I have been searching for what feels like ages now, but have not been able to solve this problem. The furthest I have gotten is opening htop on boot, but without any updates(just the initial CPU usage ...
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Showing total CPU usage by using htop

Online I found the following figure where you can see "CPU" as first row and it should represent the total amount of the used CPU. Amongst the options of the htop I run on my PC there isn't ...
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Summarize CPU load for a full process tree in htop or other tool

I want to see the full load MS teams creates, which has plenty of threads. I already tried the tree view but the values from (1) are not added up in (2) Can this be seen in htop or another nice tool? ...
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How to install the `htop` manpage?

I have htop installed via snap, but apparently the man page (man htop) is not installed. Is it possible to install this?
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"Error: File /etc/sensors3.conf: Permission denied" when running htop

When running htop I get Error: File /etc/sensors3.conf: Permission denied the permissions: $ ls -l /etc/sensors3.conf -rw-r--r-- 1 root root 10368 Apr 5 2017 /etc/sensors3.conf htop still works ...
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Rofi does not launch certain programs in Ubuntu 20.04

I use Rofi as my application launcher. However, when I try to launch certain applications like anaconda-navigator, spyder I get the following error message: Failed to execute: 'spyder' Error: 'Failed ...
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Very high RAM usage in Ubuntu 20.04 on startup

When I start my computer, the htop command shows a very high RAM usage, even without having started the web browser, which is a very common resource eater. Is this normal? Can I do something to reduce ...
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htop and sytem-monitor shows 0 cpu ubuntu 20.04 ryzen 3950x

I freshly built a new PC and make dual boot with an Ubuntu 20.04. Im having trouble with ryzen 3950x, htop and system monitor didn't recognize cpu (instead of 32 shows 1 thread). I must start it with ...
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Ubuntu 18.04 repeatedly crashes on HP laptop with AMD Ryzen 3550H

So I bought a new laptop with an AMD Ryzen 5 3550H CPU, with Nvdia graphics, and have dual booted Ubuntu 18.04 onto it. The problem I face is that the system keeps on crashing after some time, every ...
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htop Memory usage vs bar depicted

Attached is a screenshot from htop command. I am wondering why the Mem bar is like 50% full when only 4.1GB out of 126GB is used. Are the Mem bar and the 4.1GB figures representing something different?...
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iftop never stops working

I recently learned about iftop and used it for monitoring my wifi data usage few times today. sudo iftop -i wlp2s0 is how I call it. After 4-5 opening closing of iftop, I figured out that my ...
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Check how many processor cores my Python code is running on?

I want to check how many cores my Python script is using. Suppose that I have this code: while True: print('Hello World!') When I run top, it gives the CPU, Memory, percentage in addition to ...
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Mystic activity when idle

When my computer is running idle with no programs running i can see unusual spikes in the processor and network activity in the system monitor. I has been like this for quite a while. It happens even ...
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Ubuntu Studio running slow after some months

I am a Ubuntu Studio user and general Linux novice. I installed the latest Ubuntu Studio on my Dell Vostro 400 Q6600 quad-core, and it ran perfectly for many months. Now it's unusable. When I boot up,...
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Track a process using htop

I have a process that runs for while gets killed and restarts itself for every 15 seconds and I want to track the nice value of it how to do it using htop .I can track using PID by my PID changes ...
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Start glances with a few switches

I've got the gnome-terminal set to open on login, using the following command: gnome-terminal -- glances. I'd like to use these commands that work when glances is running, at launch: / 0 U F. I'm not ...
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How do you see the cpu temperature in htop command? Does this work for WSL?

Is there a way to see the CPU temperature in htop. I am using windows10 wsl, so I'm not sure if WSL1 has access to CPU temperature reading.
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avahi process maxing out 18 CPUs on VM

I'm not quite sure what the avahi process does, I see from searching that it "facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite" and I understand it comes default on ...
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1 answer
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Custom keyboard shortcut for terminal command `htop` not working

On Ubuntu 18.04 I can setup custom keyboard shortcuts to run terminal commands via: Settings > Devices > Keyboard > + Name: htop keyboard shortcut Command: htop ShortCut: Ctrl+Super+...
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How to use htop or other system monitor as screensaver

I want to make system monitor like htop as screensaver or when I block computer. Is it possible to use htop or other terminal system monitor as I want?
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Average of CPU and memory use of ALL process that appear during some time interval

I know some ways that I can see the average of CPU and memory use for one process, but I never saw a way to see the average of all process that appeared during some time. The goal is, for example, to ...
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Remove htop grey filler

I recently started to notice grey "filler" in some of my servers when viewing htop as shown in the image below. Does anybody know how to get rid fo this and go back to "normal" like below:
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Xorg causing unusual High Amount of CPU and Hard Drive use

After reboot from update noticed high use of Hard Drive and CPU. ran HTOP and getting this at top of queue: /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -...
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HTOP understanding

Sorry new to linux/ubuntu. I have read through a bunch of htop posts here, but I just wanted to clarify what the values mean. I run a 32-bit program, and my understanding is that roughly 4.2 is the ...
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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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fcitx consume 93.4% cpu

I check processes with htop and find the input method manager/fcitx consumes 93.4% cpu, What's might be the problem? Is it a single cpu or all the cpu?
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htop displays identical program in multiple lines

When I use htop, I found that an identical program occupies multiple lines: Additionally the PID could not be traced: me@host:~$ ps 16255 16256 16259 24772 16254 PID TTY STAT TIME COMMAND ...
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htop isn't displaying consistent information

I'm running a computationally intense serial python script, and htop is giving me an inconsistent information. It shows that a thread is almost 100% in use, but that python isn't using any CPU power. ...
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1 answer
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How can I show only zombie processes in htop?

I would like to monitor in real time zombie process in htop?
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Vim, terminal, or htop won't start

Starting Vim, terminal or Htop from the Ubuntu 16.04 Unity desktop "Search your computer" doesn't work. When I select Vim for example, The Vim icon appears in the launcher and oscillates between ...
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htop graphics cut off in AWS Ubuntu

htop is not working properly on an AWS Ubuntu instance. F2 or ALT-F2 do nothing. Does anybody come across this issue? This screenshot shows that htop only shows part of the graphics.
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Task/Resource Manager Memory Usage Accuracy Ubuntu 18

I'm running Ubuntu 18.04LTS (8GB RAM) and I noticed how the Gnome task manager, the "top" and "htop" applications give me 3 considerably different memory usage figures. For instance, right now: ...
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Unable to stop VIM with Kill, Htop, or anything else

I'm running Ubuntu Bionic. I installed SLiM display manager so my GUI uses tty2 and I ran vim to edit some C++ code in tty1. Suddenly, it froze completely. I tried to type things but nothing would ...
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Command fails in crontab but works in terminal

I have checked this question regarding crontab failures. I am running this command to capture the htop command and create a snapshot of it in html format (htop output to human readable file): /bin/...
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what is cinnamon --replace process?

I use cinnamon 3.6.7 <> cinnamon --replace became cinnamon --replace --replace when I restarted it:
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Is htop becoming part of the default install?

I noticed that the htop package for 18.04 is in main, where previous releases had it in universe. This is reflected in the packages index and on Launchpad. Software in main is supported by Canonical, ...
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GNOME system monitor and top showing different CPU usage

When I play a movie with SMPlayer (video:mpv) and I check my CPU usage with GNOME system monitor, it shows %4 or %5 CPU usage (1 second update interval), but htop shows %45 CPU usage: top shows the ...
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Htop is showing 100% cpu usage on thread 1 , on a fresh install of 17.10

I have a freshly installed 17.10.1 (amd64) , my cpu : Intel(R) Core(TM) i7-6700K , and when I'm running the htop command I see that the first thread is always maxed out (98-100%), although I don't see ...