RFR: 8326957: Implementation of JEP 474: ZGC: Generational Mode by Default

[Erik Österlund]

On Wed, 20 Mar 2024 09:24:51 GMT, Axel Boldt-Christmas <aboldtch at openjdk.org> wrote:

> This is the implementation task for `JEP 474: ZGC: Generational Mode by Default`. See the JEP for details. [JDK-8326667](https://bugs.openjdk.org/browse/JDK-8326667)

Looks good. One nit in terminology, don't need to see the new version.

src/hotspot/share/gc/x/xInitialize.cpp line 44:

> 42:                      VM_Version::vm_release(),
> 43:                      VM_Version::jdk_debug_level());
> 44:   log_info(gc, init)("Using deprecated single-generation mode");

Change to non-generational instead of single generation, for consistency.

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Marked as reviewed by eosterlund (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18393#pullrequestreview-2005396592
PR Review Comment: https://git.openjdk.org/jdk/pull/18393#discussion_r1568450065