[jdk17u-dev] RFR: 8271579: G1: Move copy before CAS in do_copy_to_survivor_space

[Dmitry Chuyko]

On Wed, 29 Dec 2021 15:58:57 GMT, Dmitry Chuyko <dchuyko at openjdk.org> wrote:

> Small change in G1 with good performance effect. Original patch applies cleanly.
> 
> Testing: jtreg tier1 & gc (aarch64 build).

No failures in test/hotspot/jtreg/applications/jcstress on Graviton2, 64 cpus.

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PR: https://git.openjdk.java.net/jdk17u-dev/pull/42