[jdk16u] Integrated: 8259231: Epsilon: improve performance under contention during virtual space expansion

[Aleksey Shipilev]

On Tue, 2 Mar 2021 11:43:15 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This improves Epsilon performance under heavy contention.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `gc/epsilon`
>  - [x] Linux x86_64 release `gc/epsilon`

This pull request has now been integrated.

Changeset: 81395c4f
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.java.net/jdk16u/commit/81395c4f
Stats:     39 lines in 1 file changed: 17 ins; 4 del; 18 mod

8259231: Epsilon: improve performance under contention during virtual space expansion

Backport-of: 722f23610e128991e21ba1b56ddf2b7eec99e5c2

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PR: https://git.openjdk.java.net/jdk16u/pull/66