How to Install and Uninstall realtime-setup.x86_64 Package on Fedora 39

Last updated: January 10,2025

1. Install "realtime-setup.x86_64" package

Please follow the step by step instructions below to install realtime-setup.x86_64 on Fedora 39


    
        
            $
        

        
            
                sudo dnf update
            
                    
    
    Copied


    
        
            $
        

        
            
                sudo dnf install
            
                        
                realtime-setup.x86_64
            
                    
    
    Copied

2. Uninstall "realtime-setup.x86_64" package

Please follow the instructions below to uninstall realtime-setup.x86_64 on Fedora 39:


    
        
            $
        

        
            
                sudo dnf remove
            
                        
                realtime-setup.x86_64
            
                    
    
    Copied


    
        
            $
        

        
            
                sudo dnf autoremove
            
                    
    
    Copied

3. Information about the realtime-setup.x86_64 package on Fedora 39

Last metadata expiration check: 1:07:00 ago on Thu Mar 7 17:44:52 2024.
Available Packages
Name : realtime-setup
Version : 2.4
Release : 1.fc39
Architecture : x86_64
Size : 16 k
Source : realtime-setup-2.4-1.fc39.src.rpm
Repository : updates
Summary : Setup RT/low-latency environment details
URL : https://gitlab.com/rt-linux-tools/realtime-setup.git
License : GPL-2.0-or-later
Description : Configure details useful for low-latency environments.
:
: Installation of this package results in:
: - creation of a realtime group
: - adds realtime limits configuration for PAM
: - adds udev specific rules for threaded irqs and /dev/rtc access
: - adds /usr/bin/slub_cpu_partial_off to turn off cpu_partials in SLUB
: - adds net-socket timestamp static key daemon (realtime-entsk)
:
: The slub_cpu_partial_off script is used to turn off the SLUB slab allocator's
: use of cpu-partials, which has been known to create latency-spikes.
:
: The realtime-entsk program is a workaround for latency spikes caused when the
: network stack enables hardware timestamping and activates a static key. The
: realtime-entsk progam is activated by the systemd service included and merely
: enables the timestamp static key and pauses, effectively activating the static
: key and never exiting, so no deactivation/activation sequences will be seen.
:
: Neither the slub script or realtime-entsk are active by default.