PipeWire: The Linux audio/video bus

Re:PipeWire: The Linux audio/video bus by the8472 on Wednesday March 03, 2021 @10:13AM (#26329338)

> AFAIK, Windows runs part of the Audio subsystem outside the kernel, but these processes get special treatment by the scheduler to meet deadlines.

Assigning deadline-based scheduling priorities to the pipewire daemon wouldn't do the same job?

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Re:PipeWire: The Linux audio/video bus by gmueckl on Wednesday March 03, 2021 @10:27AM (#26329557)

Isn't the deadline realtime scheduler optional? How many distros do actually ship it in their default kernels? I honestly didn't manage to keep track of this.

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Re:PipeWire: The Linux audio/video bus by cycloptic on Wednesday March 03, 2021 @11:51AM (#26331000)

The deadline scheduler is upstream, see "man 7 sched" for a description: https://man7.org/linux/man-pages/man7/sched.7.html

What is not upstream (yet) is the PREEMPT_RT patch which makes all kernel threads fully preemptible.

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