If the author is here, have you tried the new ZGC collector? I've tried it experimentally and verified that pause time are indeed 10ms or less in every case with a couple of our apps.

I also heard Twitter is a big adoper of Graal but apparently not everywhere. How is that going? I'm deeply upset that Oracle is segmenting the CE and EE version by performance (to the point where I think a fork is likely), wondering what your experience with it was