There are open source 'pauseless' (really: ultra low pause) GCs for the JVM now. Azul made good money selling such a thing to the finance industry for a long ti

There are open source 'pauseless' (really: ultra low pause) GCs for the JVM now. Azul made good money selling such a thing to the finance industry for a long time. Typical pauses may be far less than a millisecond in these GCs because they do almost everything in parallel.