[AMD Zen2][lockless dmix] crackling sound

alsa-project / alsa-lib

The Advanced Linux Sound Architecture (ALSA) - library

GNU Lesser General Public License v2.1

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Open sylware opened 1 year ago

sylware commented 1 year ago

Everything in the title. Latest alsa-lib, (1.2.8) if I do enable lockless dmix, I get crackling sound on my AMD Zen2.

Once I do enable the lock, no crackling sound.

perexg commented 1 year ago

The lockless scheme is not so useful for modern multi-core CPUs.