How To Install cpulimit on CentOS 8

cpulimit is CPU Usage Limiter for Linux

Introduction

In this tutorial we learn how to install cpulimit on CentOS 8.

What is cpulimit

cpulimit is a simple program which attempts to limit the CPU usage of a process (expressed in percentage, not in CPU time). This is useful to control batch jobs, when you don’t want them to eat too much CPU. It does not act on the nice value or other scheduling priority stuff, but on the real CPU usage. Also, it is able to adapt itself to the overall system load, dynamically and quickly.

We can use yum or dnf to install cpulimit on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install cpulimit.

Install cpulimit on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install cpulimit using dnf by running the following command:

sudo dnf -y install cpulimit

Install cpulimit on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install cpulimit using yum by running the following command:

sudo yum -y install cpulimit

How To Uninstall cpulimit on CentOS 8

To uninstall only the cpulimit package we can use the following command:

sudo dnf remove cpulimit

cpulimit Package Contents on CentOS 8

/usr/bin/cpulimit
/usr/lib/.build-id
/usr/lib/.build-id/94
/usr/lib/.build-id/94/25e37e4095f0c0baf36697c7667a5840e157ea
/usr/share/doc/cpulimit
/usr/share/doc/cpulimit/README.md
/usr/share/licenses/cpulimit
/usr/share/licenses/cpulimit/LICENSE

References

Summary

In this tutorial we learn how to install cpulimit on CentOS 8 using yum and dnf.