On: How ZGC allocates memory for the Java heap

[twoodfin]

When your comment and the article refer to “physical” addresses, those are physical in the context of the JVM, right? To the OS they’re virtual addresses in the JVM process space?

[acchow → twoodfin]

Correct. ZGC has no way to escape from the virtualization by the kernel (assuming your hardware and kernel uses an MMU)

[MBCook → acchow]

Thank you for the answer, I was wondering that as well.