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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

Software Engineer, Google Inc
Steven Rostedt currently works for Google on their ChromeOS team. Steven is the main developer and maintainer of ftrace, the official tracer of the Linux kernel, as well as the user space tools trace-cmd, the ftrace tracing libraries and co-maintainer of KernelShark. Steven is one... Read More →



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