On Java case, depends on which toolchain it is being tested, how many JIT levels it supports, if PGO is part of the picture, if it does JIT caching, if there is an AOT compilation available as well.

On Android/ART, multiple factors collaborate for the best AOT compilation with optimising compiler, when the device is idle, while a tiered JIT does its best, depending if PGO data was downloaded alongside the APK, or needed to be generated from scratch.

Then there are all the other JVMs.