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Wednesday, May 31 • 16:00 - 16:40
Understanding SCHED_DEADLINE - Steven Rostedt, VMware

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Starting in Linux version 3.14, a new scheduling class was introduced. This class is called SCHED_DEADLINE. It implements Earliest Deadline First (EDF) along with a Constant Bandwidth Scheduler (CBS) that is used to give applications a guaranteed amount of CPU for a periodic period. This type of scheduling is advantageous for robotics, media players and recorders, as well as virtual machine guest management. This talk will explain the history of SCHED_DEADLINE and compare it with various other methods to deal with periodic deadlines. It will also discuss some of the current issues with the current Linux implementation and some of the improvements that are currently being worked on.

Speakers
avatar for Steven Rostedt

Steven Rostedt

VMware
Steven Rostedt currently works at VMware. He's the maintainer of the stable releases for the Real Time patch (PREEMPT_RT). He is also one of the original developers for the Real Time patch. Steven is the main developer and maintainer for ftrace, the official tracer of the Linux k... Read More →


Wednesday May 31, 2017 16:00 - 16:40
Hall B-1

Attendees (23)