[jdk20] RFR: 8298642: ParallelGC -XX:+UseNUMA eden spaces allocated on wrong node

[Albert Mingkun Yang]

On Wed, 21 Dec 2022 09:55:35 GMT, Nick Gasson <ngasson at openjdk.org> wrote:

> Doesn't it? I think mmap-ing over an existing mapping has the effect of freeing the physical pages backing it,

Yes, you are right. I tested just now using `mincore` that overwriting existing mmapings releases the underlying physical mem.

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PR: https://git.openjdk.org/jdk20/pull/33