[alsa-devel] Fast Track Ultra latency and new streaming logic.

[Grant Diffey]

Daniel,

In continuing my personal habit of looking gift horses in the mouth...

I can't seem to get below 512frames in flight (2 256sample frames or 4 128
or 8 64's) without consistant overruns.

I have a feeling that the pcm <-> urb layer is buffering until a urb is max
urbsize from a quick look at the code does this seem like the right track?

This leads to rather high latencies (22ms+) or is this conclusion bogus?

Grant.