How To Install iowatcher on CentOS 8

iowatcher is Utility for visualizing block layer IO patterns and performance

Introduction

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

What is `iowatcher`

iowatcher generates graphs from blktrace runs to help visualize IO patterns and performance as SVG images or movies. It can plot multiple blktrace runs together, making it easy to compare the differences between different benchmark runs. You should install the iowatcher package if you need to visualize detailed information about IO patterns.

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

Install iowatcher 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 iowatcher using dnf by running the following command:

sudo dnf -y install iowatcher

Install iowatcher 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 iowatcher using yum by running the following command:

sudo yum -y install iowatcher

How To Uninstall iowatcher on CentOS 8

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

sudo dnf remove iowatcher

iowatcher Package Contents on CentOS 8

/usr/bin/iowatcher
/usr/lib/.build-id
/usr/lib/.build-id/d8
/usr/lib/.build-id/d8/5d75ae00a23b17386591d253e7c6e284f79856
/usr/share/doc/iowatcher
/usr/share/doc/iowatcher/COPYING
/usr/share/doc/iowatcher/README
/usr/share/man/man1/iowatcher.1.gz

References

iowatcher website

Summary

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