Using SCHED_DEADLINE: Implementation, Advantages, and Challenges

Explore the SCHED_DEADLINE scheduling class introduced in Linux 3.14 in this 50-minute talk by Steven Rostedt from Red Hat. Learn about Earliest Deadline First (EDF) implementation, Constant Bandwidth Scheduler (CBS), and their applications in robotics, media players, and virtual machine management. Discover how to implement SCHED_DEADLINE in applications, address potential issues, and explore workarounds. Gain insights into the Real Time patch, ftrace kernel tracer, and related tools from the perspective of an experienced Linux kernel developer and maintainer.

Using SCHED DEADLINE
What is SCHED DEADLINE?
Other Schedulers
SCHED_RR (Round Robin)
Priorities Nuke Washing Machine
Rate Monotonic Scheduling (RMS)
Implementing SCHED_DEADLINE
sched yield()
Donut Hole Puncheri
Deadline vs Period
Multi processors! (Dhall's Effect)
The limits of SCHED DEADLINE
Giving SCHED DEADLINE Affinity
Calculating WCET
GRUB (not the bootloader)
Questions?