MPMCQueue.h VS readerwriterqueue

I have looked at the commonly recommended - https://github.com/cameron314/readerwriterqueue - https://github.com/rigtorp/MPMCQueue

You can align and pad each ring buffer slot to the cache line size. Example https://github.com/rigtorp/MPMCQueue/blob/master/include/rig...

I have looked at the commonly recommended - https://github.com/cameron314/readerwriterqueue - https://github.com/rigtorp/MPMCQueue

The PREEMPT error looks like its a C module but I cannot tell from he little snippet of the log - you may do better to move the *arr and Synchthing into Docker containers to keep the OS cleaner.

For audio DSP in a Qt app I have good success with using a lock-free queue (e.g. https://github.com/cameron314/readerwriterqueue) to communicate from / to the UI threads. Code more-or-less looks like

    connect(model, &ModelObject::somethingChanged, [=] {

We recently removed readerwriterqueue from our project due to issues and replaced with simple locking queue (and got better performance in the result). Your code looks interesting, but we can't use it due to C++17 usage.