Being Systematic with systemd – Chris Simmonds, 2net Ltd

October 28, 2023

Systemd is the init daemon of choice for all but the smallest of embedded Linux project. Systemd is complex and can do many things (*). In this presentation I focus on the features most relevant to embedded devices

I begin with a review of the basics: Units, Targets, Services, and dependencies. Then I build on that to look at:
• Loading services on-demand, rather than just loading everything at boot time
• Controlling resource usage of daemons, following the principle of least privilege
• Using watchdogs to protect against lockups of key services
• Optimizing boot time

There will be demos, based on images built using Yocto Project

(*) Some people say systemd does too many things, but it’s up to you to decide

source

by The Linux Foundation

linux foundation