LAL Causing specific cores to be underutilized compared to others.

[calculusteacher]

When using the program, cpu core 0 is drastically underutilized compared to other cores. (This persists until I restart my computer)

With LAL Running

With LAL Closed

However, it seems like during stress tests (p95 large fft) cpu 0 was being fully utilized again. It's only under loads like OW2 where it happens.

Some other people have reported this as well. I'm not sure why this happens.

[spddl]

Is it known that the API blocks the core probably to provide truly low latency.

I have tested different variations but as soon as IAudioClient3 is started with a smaller buffer it looks like this in the task manager.

https://github.com/miniant-git/REAL/issues/9

[spddl]

I don't know when this behavior occurs, but if the PeriodInFrames is called less than 10ms in IAudioClient3::InitializeSharedAudioStream, it can happen that the calling process allocates the first CPU thread and sets it to realtime, so this application runs mostly alone. The solution is to check and remove this binding afterwards, because this program only runs in the background and does not need a realtime flag.

can you test the new version again?

[calculusteacher]

doesn't happen on new version, all cores are at normal utilization 👍