Re: [PATCH] sound: rawmidi: Add framing mode

Dne 15. 05. 21 v 9:15 David Henningsson napsal(a):

This commit adds a new framing mode that frames all MIDI data into 32-byte frames with a timestamp.

The main benefit is that we can get accurate timestamps even if userspace wakeup and processing is not immediate.

Testing on a Celeron N3150 with this mode has a max jitter of 2.8 ms, compared to the in-kernel seq implementation which has a max jitter of 5 ms during idle and much worse when running scheduler stress tests in parallel.

Signed-off-by: David Henningsson coding@diwic.se

Reviewed-by: Jaroslav Kysela perex@perex.cz