[jdk17u] Integrated: 8272783: Epsilon: Refactor tests to improve performance

[Aleksey Shipilev]

On Wed, 8 Sep 2021 15:54:57 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to improve testing.
> 
> Additional testing:
>  - [x] `gc/epsilon` pass faster

This pull request has now been integrated.

Changeset: f32703f8
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.java.net/jdk17u/commit/f32703f81de883550d4a24d5a45c5b2312754479
Stats:     408 lines in 21 files changed: 271 ins; 29 del; 108 mod

8272783: Epsilon: Refactor tests to improve performance

Backport-of: 7f80683cfeee3c069f48d5bce45fa92b2381b518

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PR: https://git.openjdk.java.net/jdk17u/pull/56