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September 11-14, 2017 - Los Angeles, CA
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Monday, September 11 • 11:50am - 12:30pm
Understanding SCHED_DEADLINE - Steven Rostedt, VMware

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Starting in Linux version 3.14, a new scheduling class was introduced. Called SCHED_DEADLINE, this scheduling class 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 time frame. 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 in development.


Speakers
avatar for Steven Rostedt

Steven Rostedt

Open Source Programmer, VMware
Steven Rostedt is one of the original developers of the Real Time (PREEMPT_RT) patch. He currently maintains the v4.14-rt stable branch. Steven has been an active Linux kernel developer since 1998 where he converted the TCP/IP stack from a send/ack stack to a credit/nack stack for... Read More →



Monday September 11, 2017 11:50am - 12:30pm
Gold 1

Attendees (42)