Unless you have numbers to share for CMS latency in Java I have no reason to assume that they are materially different from G1. I am using CMS for my server app

Unless you have numbers to share for CMS latency in Java I have no reason to assume that they are materially different from G1. I am using CMS for my server applications and multi second latency is quite common STW pauses in CMS. In general Oracle JDK uses order of magnitude more memory and order magnitudes higher GC latency compare to Go. IMO it is quite useful to remember when deciding on language on new projects. If hotspot people think that these numbers are not true I am sure they would let people know.