[jffhn]

>any recommendations for a low latency work queue (with in a jvm)?

I toyed around the ring buffer pattern a decade ago, creating a unicast one (using CAS on entries, and eventually a logarithmic scan for next readable entry, not to brute-force-scan them all), but I'm not sure that its latency is much better than that of a regular ThreadPoolExecutor (the throughput could be better though).

Latency also depends on whether it spins or blocks when waiting for a slot to read or write.

If you want to give it a try: https://github.com/jeffhain/jodk/blob/master/src/net/jodk/th...