This week at LWN: Deadline scheduling for Linux
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Much of the realtime scheduling work in Linux has been based around getting the best behavior out of the POSIX realtime scheduling classes. Techniques like priority inheritance, for example, exist to ensure that the highest-priority task really can run within a bounded period of time. In much of the rest of the world, though, priorities and POSIX realtime are no longer seen as the best way to solve the problem. Instead, the realtime community likes to talk about "deadlines" and deadline-oriented scheduling. In this article, we'll look at a deadline scheduler has recently been posted for review and related discussion at the recent Real Time Linux Workshop in Dresden.
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