Integrated: Track promotion rate into old generation

[William Kemper]

On Thu, 16 Sep 2021 20:38:58 GMT, William Kemper <wkemper at openjdk.org> wrote:

> The member `_bytes_allocated_since_last_gc` has been moved into the `ShenandoahGeneration` abstraction and is updated accordingly. Evacuations into the old generation (i.e., promotion) are counted as allocations against the old generation. Promotion of entire regions is not recorded in the promotion rate.

This pull request has now been integrated.

Changeset: 52973cc9
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.java.net/shenandoah/commit/52973cc9b2ef8e5768fbd6fd24604978240a144a
Stats:     133 lines in 8 files changed: 62 ins; 56 del; 15 mod

Track promotion rate into old generation

Reviewed-by: rkennke, kdnilsen

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PR: https://git.openjdk.java.net/shenandoah/pull/70