Obviously with your background you know this offhand, but is there a mere-mortals reference for JVM JIT behaviors and capabilities to keep in one's back pocket?

Obviously with your background you know this offhand, but is there a mere-mortals reference for JVM JIT behaviors and capabilities to keep in one's back pocket? I have a pretty strong understanding of a lot of the Java universe (particularly around the JMM) but modern JVM JIT behaviors are a black box to me.