Questions tagged [htop]

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

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Full CPU usage but no command in htop

Ubuntu server is running at 100% cpu when booting. Htop is not showing any process above 2-3% usage. Is there any way to investigate which processes using the cpu? Htop usage in terminal
Jamshid Tursunboyev's user avatar
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83 views

How to identify where IOPS on zpool is coming from?

I am running a zpool which seems to always carry a load of ~300M writes. I am having trouble identifying why the load is so high. In the screenshot, i run zpool iostat 30 and observed the load ~300M ...
Trevor K Smith's user avatar
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1 answer
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VPS server htop shows 4 bars in 100% with yellow!

what is the yellow color means!? is it DDos attack or something else !? its VPS with Ubuntu 20.04 64bit from Hostinger with Cpanel installed. all websites are down
mohamad salama's user avatar
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1 answer
109 views

Available memory low despite no process using a lot of memory

so I fired up my personal Ubuntu 22.04 server today, and noticed that it was extremely slow in comparison to yesterday. I checked via commands what was going on and am really confused: As you can see ...
Franky's user avatar
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Thread names truncated - show full?

Seems like thread names get truncated everywhere (for example "IpcPipeBroadcas" instead of "IpcPipeBroadcast". I've checked both htop and the below ps command. Is this hardcoded or ...
Daniel Krajnik's user avatar
1 vote
1 answer
99 views

Htop display options

I need help setting the second in the display options section. I accidentally pressed space too long on highlight time (in seconds), and now it is 2190, and I don't know how to lower it. I've tried to ...
Fluffy3763's user avatar
2 votes
0 answers
379 views

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 ...
Trevor K Smith's user avatar
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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, ...
Ritijo's user avatar
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2 votes
1 answer
532 views

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?
beng in's user avatar
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218 views

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 ...
97f8sa797vhaa's user avatar
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154 views

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 ...
bbuck's user avatar
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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 ...
ylluminate's user avatar
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1 vote
1 answer
552 views

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 ...
Sandeep Parameshwara's user avatar
0 votes
2 answers
467 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 ...
Michael Smith's user avatar
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1k views

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, ...
양석우's user avatar
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1 answer
165 views

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 ...
Hector Kolind's user avatar
5 votes
1 answer
15k views

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 ...
Gennaro Arguzzi's user avatar
5 votes
3 answers
3k views

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? ...
Alex's user avatar
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2 votes
1 answer
257 views

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?
red_trumpet's user avatar
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6 votes
2 answers
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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 ...
ezekiel's user avatar
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1 answer
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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 ...
SwayamShree's user avatar
1 vote
1 answer
1k views

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 ...
fernandezr's user avatar
0 votes
1 answer
503 views

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 ...
MTG's user avatar
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1 answer
196 views

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 ...
Rishab Balasubramanian's user avatar
1 vote
1 answer
7k views

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?...
Black Jack 21's user avatar
2 votes
0 answers
1k views

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 ...
muyustan's user avatar
  • 268
4 votes
2 answers
5k views

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 ...
singrium's user avatar
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0 votes
1 answer
132 views

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 ...
Frederik H's user avatar
1 vote
0 answers
499 views

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,...
Colin R. Turner's user avatar
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1 answer
1k views

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 ...
DEV's user avatar
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0 votes
1 answer
132 views

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 ...
listenlight's user avatar
9 votes
2 answers
11k views

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.
Patoshi パトシ's user avatar
1 vote
0 answers
73 views

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 ...
clifgray's user avatar
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3 votes
1 answer
2k views

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+...
Display name's user avatar
  • 2,191
4 votes
1 answer
941 views

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?
ElConrado's user avatar
  • 143
0 votes
1 answer
46 views

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 ...
André Carvalho's user avatar
4 votes
1 answer
639 views

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:
Programster's user avatar
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1 vote
0 answers
421 views

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 -...
Leon's user avatar
  • 11
3 votes
1 answer
625 views

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 ...
Jeff's user avatar
  • 131
11 votes
2 answers
10k 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 ...
Livy's user avatar
  • 348
2 votes
0 answers
133 views

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?
Wizard's user avatar
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11 votes
1 answer
7k views

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 ...
Alice's user avatar
  • 1,670
2 votes
1 answer
2k views

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. ...
Alexander Armen Berian's user avatar
4 votes
1 answer
8k views

How can I show only zombie processes in htop?

I would like to monitor in real time zombie process in htop?
townie's user avatar
  • 141
1 vote
0 answers
481 views

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 ...
Eddie's user avatar
  • 11
1 vote
0 answers
116 views

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.
Brian Simison's user avatar
1 vote
0 answers
392 views

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: ...
Freeman's user avatar
  • 11
0 votes
0 answers
1k views

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 ...
Baaing Cow's user avatar
0 votes
1 answer
2k views

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/...
Chillar Anand's user avatar
3 votes
0 answers
4k views

what is cinnamon --replace process?

I use cinnamon 3.6.7 <> cinnamon --replace became cinnamon --replace --replace when I restarted it:
Mah35h's user avatar
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