htop is an interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses.
Questions tagged [htop]
71 questions
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htop 100% fake CPU load
Recently my VPS show 100% CPU usage of all cores in htop and observium, but there is no process that uses > 5% CPU. In fact, the statistics of my VPS host shows there is no activity at all. Is this a bug? I've read something about a leap second. But…

Maarten Oosting
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htop CPU usage information does not look consistent
Please have a look at htop screenshot below
You can see there that current host has two CPU cores (or CPUs).
All processes are ordered by CPU usage descending.
So how is it possible that with two processes eating 10% of CPU summary info shows that…

humkins
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RHEL5: htop shows empty command-column
When issue the command htop on my RHEL5 box I get a normal view, however when I scroll down I have several "blank" command ranges as can be seen here:
Can someone explain me how this happens/occurs?
Update:
my .htoprc file:
# Beware! This file is…

timmeyh
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top and htop disagree on memory usage, but swap is being used on GlusterFS server. Can this be improved?
If I run free -m, top and htop, I get different memory uses. The system is also using a small amount of swap. I understand from this question why they are reporting different values (some of the data is considered "discardable" and so included by…

Luke Cousins
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Understanding difference between system and process memory in htop
I'm a bit confused by the memory stats that htop is reporting on one of our servers. On the top bars, it's showing system memory as:
Mem: 456 / 7950MB
So, looks very low usage.
However, my main process is showing it's memory usage as:
VIRT RES …

UpTheCreek
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Two CPU cores at 100% utilization after soft lockup on two CPUs, is this normal?
I had two of my CPUs lock up on one of my servers. From dmesg:
BUG: soft lockup - CPU#1 stuck for 23s! [vmx-vcpu-0:6148]
and later:
BUG: soft lockup - CPU#2 stuck for 23s! [vmx-vcpu-0:6148]
I'm trying to figure out why this would happen; the…

Tom Marthenal
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htop lying about vmware-tools memory consumption
I am experiencing a problem where htop (top too) is incorrectly reporting the memory consumption of a process, in this case the vmware-tools service (highlighted below). I am colorblind and thought I might be mistaking used memory for cache, so I…

Tag
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Htop installation failed
I'm trying to install the htop , but I can't since I'm getting this fatal error:
# cd /usr/ports/sysutils/htop && make install clean
===> Installing for htop-1.0.1
===> htop-1.0.1 depends on executable: lsof - not found
===> Verifying install…

Cyclone
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Linux: 100 Mi RAM free but no processes with high-memory usage
A Debian Bullseye server is using almost 100% RAM quantity (7.65G / 7.79 G):
But there are no processes with more than 0.0% memory usage
DEV root@postgres2 ~# free -h
total used free shared buff/cache …

Mat
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Bridge interface causes high CPU utilization
We are facing a weird issue with a server we have on our laboratory. Specifically, the server shows high CPU utilization from low priority processes (blue color in htop) with 50% of the cores appearing to have 100% utilization as shown in the…

Dimos Masouros
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Memory usage: big difference in `free -m` and htop as well calculation of used memory in htop compared from /proc/meminfo
I'm aware of this question https://stackoverflow.com/questions/41224738/how-to-calculate-system-memory-usage-from-proc-meminfo-like-htop
Answer seems outdated regarding memory usage and this question seems more complex.
htop definitely now doesn't…

Hannes
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Memory usage doesn't add up: most of the RAM gone mysteriously
I have a Fedora 30 [5.6.13-100.fc30.x86_64] machine with 32GB of RAM onboard.
Right after boot both free -h and htop indicate that 21-22GB is used:
[ andriim@dev-r-vrt-007 ~/work ] $ free -h
total used free shared …

Andy Mac
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Where is my bottleneck: RAM, CPU or disk?
I have a 32 core, 64 thread, 128GB RAM system with internal SSD.
I'm running 64 data mining/simulation jobs in parallel that each load 1GB from disk and run for about 5-10 minutes .
I want to know if I'm bottlenecked by CPU, disk or RAM. I have the…

JacksonCounty
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new admin wondering why htop and top show different numbers on scientific linux VM
I am trying to figure out if I am using htop correctly. A top on this VM reveals:
top - 17:52:39 up 98 days, 23:05, 1 user, load average: 0.04, 0.01, 0.00
Tasks: 178 total, 1 running, 177 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.1%us, …

Codejoy
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free and htop report totally different numbers
See the following screenshot:
The "total" amount of memory is reported at 8GB by both htop and free, but while free reports that only 2.7GB is "used", htop reports that 7.53GB is used. free reports that 5GB is buffers/cache, while htop reports this…

Fela Maslen
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