Questions tagged [top]

Command-line application for monitoring running processes.

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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
2 votes
0 answers
448 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
2 votes
0 answers
550 views

Context menu missing when right-clicking on top panel in Ubuntu 20.04

I did a clean install of 20.04 a couple of days ago and have been customizing my machine since then. When I right-click on the top panel, the context menu doesn't appear. I am used to using earlier ...
Scott Semel's user avatar
2 votes
0 answers
2k views

Multiple copies of same process running in background, why?

When I run htop, I see multiple processes that seem to be exactly the same: What is happening? What are these processes?
ER H's user avatar
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2 votes
1 answer
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Sublime Text: see how many resources each plugin is using

How can I see how many resources each Sublime Text plugin is using?
Ashton Six's user avatar
2 votes
0 answers
1k views

iotop shows 99.8% IO load on "--render" and "--extension" and "dropbox \fataldb" processes

folks. System works more or less fine, but stucks from time to time. I've tried to detect using iotop it and it seems that disk io is the bottleneck. chrome and jbd2 keep writing to disk all the ...
MInner's user avatar
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1 vote
0 answers
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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 ...
general2000vn's user avatar
1 vote
0 answers
2k views

How is possible to clear kswapd0 with high CPU consumption?

I use Ubuntu 20.04 on my computer. When I use top -i command, I see one of the users consume a high amount of CPU for kswapd0. To terminate this, first of all I used ps -ax| grep kswapd0 and killed it....
Martin's user avatar
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134 views

"free -g" and top reporting wildly different memory usage on MySQL server

I am aware of buffers, cache, swap, etc. but can anyone explain this one to me? First, Here's a TOP output sorted by memory usage. Note that MySQL is using 39.4% of the RAM in the system. Every other ...
Tony Maro's user avatar
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1 vote
0 answers
512 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
1 vote
0 answers
985 views

How to increase the number of characters in top's COMMAND column?

OS: Ubuntu 18.04.1 When I run top from gnome-terminal as a maximized window, I see that entries in the "COMMAND" column don't exceed fifteen characters. (I'm not asking about the command-line mode ...
DK Bose's user avatar
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396 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
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1 vote
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131 views

Title bar problem with Ambiance theme in Ubuntu 16.04

I was messing around, installing themes which went well. However, I might have tweaked something that I can't roll back which is the top menu panel font as shown in this picture: I am keeping a ...
Muhammad Salah's user avatar
1 vote
0 answers
283 views

Ensure hardware acceleration feature working

Firefox in my ubuntu distribution typically takes up high resources of CPU. Since hardware acceleration is an often suggested way to ensure performance, i have enabled it under the browser preference, ...
dd_rookie's user avatar
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top CPU does not sum for all CPUs

From my box: root@arrakis:/tmp# top top - 09:53:14 up 28 days, 15:10, 15 users, load average: 0,59, 0,64, 0,67 Tasks: 391 total, 2 running, 386 sleeping, 1 stopped, 2 zombie %Cpu0 : 4,5 us, ...
user2913139's user avatar
1 vote
1 answer
2k views

Heavy CPU Load IRQ Related

Hey guys I'm curious as to what anyone here thinks. I have an HP Envy Laptop running Ubuntu 15.10 and it has a 4th generation quad core i7. For some reason since I first installed it my fan spins up, ...
ssvegeta96's user avatar
1 vote
1 answer
1k views

How to get CPU Utilization for a certain process

I am running Ubuntu 14.04 on my machine. I need to get the CPU utilization for a process running at a required monitoring interval. I have tried the following have a few questions about them. I ...
Ankit's user avatar
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1 vote
1 answer
221 views

What is hammering the CPU when top is not running?

On Kubuntu 12.10 I can see with the KDE System Monitor Plasmoid that the CPU usage is fluctuating between 60% - 90% on both cores. As soon as I open top it goes down to 3% - 10%. I thought that the ...
dotancohen's user avatar
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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
0 votes
0 answers
49 views

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 ...
mallo's user avatar
  • 1
0 votes
1 answer
108 views

How can I remove (uninstall) top (table of processes)

Is there a way to remove (uninstall) top (table of processes)?
Chairman Meow's user avatar
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0 answers
23 views

Snap applications do not startup randomly

There are some applications like firefox and chromium, spotify that are now recommended to be installed from snap. When I do that on ubuntu 20.04 and ubuntu 22.10, they randomly stop launching. Win-...
Tatty Man's user avatar
  • 101
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1 answer
267 views

How to manually give configuration file to top command?

I know that top behaviour can be changed interactively and can be stored as a cfg file as toprc and it will use that cfg automatically. Is there a way to write and feed the configuration file (stored ...
Bharath S's user avatar
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0 answers
66 views

Very high values in top command Ubuntu

I am getting very high VIRT values of applications in the top command even though I just turned on my laptop. Also the laptop's fan is turning on very frequently even with just a browser and VSCode ...
Ayush Dhiman's user avatar
0 votes
0 answers
27 views

getting disallowed error for top command

while entering top command from a script getting the below error: praveen.kumar@MUM:/home/admin$ top -b -n 1 -d1 |grep "Cpu(s)"| awk -F' ' '{print $2}'|awk -F' ' '{print $1}' top: -d ...
Praveen Kumar's user avatar
0 votes
0 answers
195 views

Ubuntu is very slow, due to these processes or other issues?

TIME+ COMMAND ------------------ 73:39.09 gnome-shell 6:39.58 kswapd0 7:20.54 kcompactd0 46:26.92 Xorg ...
Willow Lu's user avatar
0 votes
0 answers
737 views

Very high load even nothing is done

I have the below Ubuntu server hosted by a commercial hoster. The hoster says he has no clue. Attached a screenshot from top where can be seen which processes are slowing down the server. It's more or ...
Peter VARGA's user avatar
0 votes
0 answers
89 views

Why is my Ubuntu server running many tmux server processes?

I'm running Ubuntu 21.04 on a Raspberry Pi 4B. I'm viewing top to monitor what's going on and it is showing at the moment 11 'tmux: server' processes. Tmux is running, showing one window containing ...
Forkbeard'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
0 votes
0 answers
123 views

Output of `top` command not saved to variable

I created the follow bash script, called ./notify-me.sh, in Ubuntu: #!/bin/bash emailmessage=$(top -b -o %CPU) echo $emailmessage But when I run this script by doing ./notify-me.sh and pressing the ...
learningtech's user avatar
0 votes
0 answers
137 views

How do I launch the network manager pop-up menu window displayed in attachment within Ubuntu 18.04 and LXDE?

I would like to know: What is the name of the program that manages the network icon on the top bar of Ubuntu 18.04 with LXDE? The network icon I meant gets highlighted with a red circle on the ...
thosecars82's user avatar
0 votes
0 answers
217 views

unknown users when running top command

When I run top command there is 1 users listed but then other users are listed in running proecesses they are message+, kernoops, and syslog, I am trying to work out if my system is compromised but am ...
papercup's user avatar
0 votes
1 answer
283 views

top command till a process runs out

I'm running a process and I want to store its CPU usage. So I used top command { test_case.sh > out.log ; } && { sleep 2s ; x=`pidof test_case` ; top -p $x -d 5 -b > cpu.log ; } But the ...
Avinash Baldi's user avatar
0 votes
0 answers
165 views

Unknown user 2003 running haiduc command in my vps

There is an unknown user named 2003 running command haiduc on my vps when i run the command 'top'. However the user 2003 does not exist. Does anybody know what this is?
user1034912's user avatar
0 votes
1 answer
433 views

Distance between icons

Anybody knows how to change distance between icons in top panel ubuntu 18.04? I need to do it smaller
Maksim Ryabchenko's user avatar
0 votes
1 answer
21 views

Why showing double vhost-2473 in KVM?

why system showing double vhost-2473? I have installed KVM and created a Guest machine with two interfaces on the Ubuntu-14.04 server. When I keep running the Guest machine, the Host machine showing ...
kabir's user avatar
  • 1
0 votes
1 answer
4k views

Root process suddenly uses gzip and takes up %75> CPU

I've been noticing late that my laptop will slow down suddenly, and the culprit is usually gzip being launched by a root process. This happens occassionally and I have no idea what's causing it. It ...
AAZ's user avatar
  • 1
0 votes
0 answers
362 views

Error: You must specify exactly one target process

what is the syntax to use cpulimit to throttle Web Content? Note the space between Web and Content. top - 09:16:00 up 1:09, 2 users, load average: 1.80, 1.70, 1.77 Tasks: 215 total, 2 running, ...
Thufir's user avatar
  • 4,551
0 votes
2 answers
3k views

cpu usage per user

When I type lscpu I can read of the number of CPUs on our server (56). We are a few people working on this server and I would like to see how many CPU's are being used per user. When I run top I can ...
BillyJean's user avatar
  • 947
0 votes
1 answer
110 views

System resources process questions

Is there a way you can find the percentage of CPU time used by a process on the command line? Also I want to find out what the cpu time is by a certain process as well as the percentage of memory ...
Jeff Meacham's user avatar
0 votes
2 answers
63 views

In Consistent RAM reports

"System Monitor" tells me i am using 1.3GB of 2.9GB at 42.8% "atop" tells me i am have 174.8M Free "top" tells me i have 3072772 total, 2894424 used, 178348 free 3072772KB = 2.93042373657227GB "...
user285611's user avatar
0 votes
1 answer
1k views

What is wrong with the memory usage?

I can't figure out what is consuming my memory... Could anyone help me? user@desktop:~$ free total used free shared buffers cached Mem: 8176992 6186776 ...
user282723's user avatar
-1 votes
1 answer
182 views

What's the difference between two PID processes?

What's the difference between the two processes here, they both have similar files and dir inside them?
Anshul Choudhary's user avatar