Prior to Java 9 I was familiar with a set of "mandatory" (as recommended in Optimizing Java) flags for GC logging that I would enable for instances of a JVM. These were:
-Xloggc:gc.log -XX:+PrintGCDetails -XX:+PrintTenuringDistribution -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps
With Java 9 and the introduction of Unified GC Logging is are there any recommendations for an equivalent set of "mandatory" GC logging settings?