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Result from htop showing a user called 524288: [Main] [I/O] PID USER PRI NI VIRT RES SHR S 49724 newbyte 20 0 227M 2492 2224 S 49726 524288 20 0 1780 1344 1156 S ...
Newbyte's user avatar
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I want to ask mostly out of curiosity to understand, what detail can have impact on behavior of htop program (or any other in the future) in following case. By default I had htop v3.1 installed, but ...
Jacob's user avatar
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By default, htop shows many more processes than other tools (top, ps). The solution is to press H, as mentionned in Why are there many processes listed under the same title in htop?, to get the "...
Basj's user avatar
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How can I best debug the following issue from here on? I have a python application running in a podman container which has plenty disk I/O due to a numpy memmap of two huge files, one input file ...
Semnodime's user avatar
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On my system htop is constantly showing 100% load on four out of the eight logical cores on my system (system specs below). The issue is that it's a freshly installed Ubuntu Server 22.04 and there are ...
pete's user avatar
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I think these bash commands were created with the intention of increasing htops refresh interval, cant remember where i found them. However I have since figured out all that was needed to do to get it ...
bob king's user avatar
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219 views

It is well known that OpenBSD disables hyper-threading by default. However, htop shows 16 CPUs: 8 online and 8 offline, which takes extra space on the screen and is not very informative. Moreover, ...
nalzok's user avatar
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From the author of htops answer https://stackoverflow.com/questions/41224738/how-to-calculate-system-memory-usage-from-proc-meminfo-like-htop/41251290#41251290 I got to know that the total memory in ...
ArunJose's user avatar
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I am running a virtualized Arch Linux machine. From time to time, it shows a high memory consumption and I do not know the reason because basically, the machine is sitting idle. # ps aux --sort=-%mem ...
Stacker12345's user avatar
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I change htop settings by accident from time to time, and sometimes I don't know what I've changed. It's really easy when just about every key changes a setting. Is there any way to reset the ...
trr's user avatar
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I have a server with two cpus (24 core * 2), recently, I noted that htop always report one cpu is fully usage But I cant find any threads with highly cpu usage by htop, top or ps -ef I have tried: ...
zhang's user avatar
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htop 3.2.2 running as a regular user only shows I/O rates (IO_RATE/IO_READ_RATE/IO_WRITE_RATE) for some processes and "N/A" for others. Running as root shows I/O for all processes. How can I ...
genpfault's user avatar
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htop gives unlimited multiple green lines under white line on linux. What do multiple green lines mean? And how can I prevent it? It seems that each takes a certain amount of memory
Antonio SEO's user avatar
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A DELL R730XD server with 32GiB * 8, totaling 256GB of memory, is correctly recognized as 256GB in the BIOS. When checking the memory information using "dmidecode -t memory" in Linux, the ...
BreakingGood's user avatar
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569 views

I like htop a lot, with fewer CPUs there is a bar next to each CPU showing how much it is utilised, however at 127 CPUs the usage bar is gone... I would like to know how to spread the CPUs over the ...
guesty's user avatar
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I recently see that there is new "I/O" (blue one) on htop, how to switch to that tab?
Kokizzu's user avatar
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I have the following htop output: What are the green, blue, and yellow bars respectively in this memory output?
Foobar's user avatar
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I was running a pipe command with one section being the following: sort -t $'\t' -T . -k1,1g When I was monitoring htop I saw this instead: What is the reason behind this? Does this mean my command ...
paropunam's user avatar
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If htop shows more "kthr" than Tasks for me, how to interpret that? Shouldn't Tasks include all kernel threads, meaning it should always be Tasks >= kthr? Ubuntu 18.04.5, htop 2.1.0
Konstantin's user avatar
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On Windows, there is a program available for download which is part of what's called the sysinternals suite of tools. This program is called Process Explorer 64 aka ProcExp64. The program is useful ...
the_endian's user avatar
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I've applied CPUAffinity to certain systemd services. I've checked Cpus_allowed_list from /proc/PID/status, and it works fine. Now I want to find out which process is using CPU 0 or CPU 1, how can I ...
daisy's user avatar
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I am reviewing a web service with Ubuntu 18.04.6 that is reported to load the sites mounted in it so slow. Reviewing the process running with htop, I detected that much of the memory is used by ...
Eliacim DAVILA - CENSERE's user avatar
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I want to monitor the CPUs' usage when a program is running. I came out with the idea, that htop has the CPU usage information on the top. I wonder if I can somehow run htop, make it refresh every 0.1 ...
Erwin Zangwill's user avatar
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My workstation have 256 logic cores, and it seems htop can only display 4 cores usage in one row. So there are 64 rows to display cpu usage, thus I can't see any process information in htop. And I do ...
fajin yu's user avatar
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17 votes
2 answers
6k views

My system was running slow recently and I checked htop to identify resource consumption. RES Column is 213M which is quite normal for chrome. I was surprised after looking at VIRT column, Google ...
Milan's user avatar
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1 answer
991 views

I'm using zsh on macOS 12.4, apple M1. When I run htop normally using the command htop and use ctrl+z it behaves as expected and sends the process to the background. I can evoke it again using the fg ...
Shriram's user avatar
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was out exploring in the binary jungle and found that my htop on Ubuntu WSL2 showed half the memory that windows shows. So, I'm running a 32GB machine, but htop only admits it having 16GB. Anyone know ...
Dreyfus's user avatar
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I have a 48-CPU UBUNTU and it has loaded with lots of processes. Here is the htop page, At core section, the green bar means the usage from normal user, the red one represents the kernel usage, but ...
user3595231's user avatar
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I'm running some intensive tasks on my Linux (Manjaro) server and the CPU is at 100% of all its cores, but I saw that the percentages of CPU use per process sum to a much higher number than 400% on my ...
oskark's user avatar
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top hides all the idle processes with the -i flag. From man of the top: PERFORMANCE/ACCURACY TRADEOFF Calculating detailed memory statistics is fundamentally resource-intensive. To reduce the ...
alper's user avatar
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1 answer
756 views

I'm on a system with 48 threads and the view for usage is taking up 4/5 of the vertical screen space. Is there a way to toggle the CPU usage window to just view the active PIDs?
BitShift's user avatar
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1 answer
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My node application spawns ffmpeg processes. In htop, there are a bunch of ffmpeg processes I would have expected to have ended but they are still shown in htop. The threads in green are the process ...
Isiah L's user avatar
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1 answer
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when i do a ps -efT (where -T = Show threads, possibly with SPID column.), i see all the threads have the same PID, which is as expected. myroot 24958 24958 7942 0 20:20 pts/12 00:00:00 java -...
samshers's user avatar
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You can list the process ID of each widow with this command: wmctrl -lp Does there exist a command that shows the running command of each window (kind of like htop has a column for "Command"...
Lonnie Best's user avatar
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1 answer
1k views

Is there a way to filter processes in htop by their state — e.g., only show running processes (state R)?
jhansen's user avatar
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1 answer
107 views

I’m running FreeBSD 12.1-RELEASE on my home server. From time to time, the server’s HDDs thrash for hours on end, even though the server itself should be idle. (I have no cron jobs scheduled, and I ...
Dan Li's user avatar
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-1 votes
1 answer
2k views

My server is actually on this state: I am executing htop as root, so I'd see everything. Sorting by MEM%, I see al processes under 1%. And this even in tree view). But what does it mean when memory ...
realtebo's user avatar
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7 votes
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3k views

Now I am using htop to show the process of my server, but I face a problem that when the command is very long, I just see part of the command and I did not know the full information of the process, is ...
Dolphin's user avatar
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I have a little issue that I can't understand. I have 8x128GB sticks of RAM, which makes 1024GB of RAM. But the command htop displays 996G and not 1024G as expected. You can see the following ...
youpilat13's user avatar
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2 votes
1 answer
1k views

I write a simple test.sh script which only does this: while true; do cp ./target-file ./target-file.tmp; done wherein target-file is created using dd if=/dev/urandom of=target-file bs=1M count=100 and ...
Gaurang Tandon's user avatar
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I used htop to check the system monitor. I run the program app.py but I saw 2 line display app.py run. Is my app.py duplicate run?
Toan Nguyen Phuoc's user avatar
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3 votes
1 answer
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I am running a java program from inside IntelliJ IDEA (an IDE) on a Mac. The program spawns 2 threads. I have installed htop and I am trying to see the process along with the spawned threads (they are ...
Jim's user avatar
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58 views

I have recently observed an undocumented state "I" displayed in htop output. The default help message doesn't disclose any information about this hidden state. Given all processes that ...
TJM's user avatar
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1 answer
59 views

I'm using Debian 10, and today I suddenly realize my CPU up to 100 percent and I use htop to saw which process take action, and I saw my system try to unrar a file in my download directory but I don't ...
SiaVash Moghaddas's user avatar
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7 votes
1 answer
3k views

I'm using Debian 9 to host a game server. Specifically, I'm hosting about 10 instances of the game Don't Starve Together. The other day I noticed one of those instances (which was getting a lot of ...
Mr. Smith's user avatar
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1 answer
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I'm trying to measure the CPU% consumed by my app on a multi-core machine, meaning htop CPU% reports can go over 100%. I'm trying to get a simple read on CPU usage difference when I run my app in one ...
CCJ's user avatar
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1 vote
1 answer
697 views

My goal is to track the resource usage of a certain command in a easily parse-able time-series. Here's an example where I'm tracking all the node commands for 3 batches: top -b -n3 | grep node ...
icicleking's user avatar
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3 votes
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I have a PC with 64 GB of RAM in my work. I am noticing that there is something that is taking a lot of my memory, sometimes 20 GB or even more than 40 GB. I could not find which process is ...
Cayo Emilio's user avatar
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1 answer
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I need to know why those processes are using so many CPUs. Are there any commands or tools to check? PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
Ash Adams's user avatar
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5 votes
2 answers
503 views

I am using Ubuntu 20.04 LTS. The kernel version is 5.4.0-42. Here is an example program: // mre.c // Compile with: cc -o mre mre.c -lSDL2 #include <stdio.h> #include <SDL2/SDL.h> int main(...
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