batching changes after update

[cobaltspark]

Posting this in case it saves someone else a little time.

If you were starting from scratch today for this use case, what would you choose first and what would you ignore?

I'm especially interested in mistakes worth avoiding.

[audioriver]

I think the bottleneck is somewhere else. I get why that seems right, but on Threadripper box the bottleneck felt elsewhere. Could be a workload difference, but I wouldn't generalize too fast from one setup.