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The real-time GC in java RTS is not a generational collector so it doesn't have the concept of partial-GC and full-GC that generational collectors do.
Note you can get even more GC details using -XX:+ PrintGCDetails
BTW if you are concerned about performance why are you running in the interpreter (-Xint) ?
Thanks for the -Xint, it shouldn't be there !
I did run the program with Jprofiler but didnt see that some commands forced the rtjvm into non-determinstic mode. So when the log was full of "Full GC" I thought maybe "Full GC" = mark + sweep .
( that "Full GC" by the rtjvm ment one completed period of mark+sweep )
works nice !
Using some JVMTI capabilities forces the RT VM into "non-deterministic mode" which causes the Serial GC to be used rather than the Real-time GC.