Integrated: 8327097: GenShen: Align PLAB sizes down rather than up

[Kelvin Nilsen]

On Mon, 26 Feb 2024 21:27:37 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

> When adjusting LAB sizes, round down rather than rounding up.  Otherwise, we may violate the ShenandoahHumongousThreshold bound.

This pull request has now been integrated.

Changeset: f1d98490
Author:    Kelvin Nilsen <kdnilsen at openjdk.org>
URL:       https://git.openjdk.org/shenandoah/commit/f1d98490f4e2fe94f2ed6db961934812c53395ae
Stats:     155 lines in 12 files changed: 73 ins; 35 del; 47 mod

8327097: GenShen: Align PLAB sizes down rather than up

Reviewed-by: ysr, wkemper

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PR: https://git.openjdk.org/shenandoah/pull/401