>Are you sure ParallelGCThreads was deprecated? Definitely not sure it was that op exactly, reasonably sure it was something related to it (maybe it no longer

>Are you sure ParallelGCThreads was deprecated? Definitely not sure it was that op exactly, reasonably sure it was something related to it (maybe it no longer working with a gc it used to). TLDR:I found out "the hard way" -XX means "jvm specific, can change meaning at any time and is jvm vendor specific". oracle java 8 had a sweet spot that made perf awesome, nothing since has come close.