RFR: 8372861: Genshen: Override parallel_region_stride of ShenandoahResetBitmapClosure to a reasonable value for better parallelism

Tue Dec 2 20:02:16 UTC 2025

On Tue, 2 Dec 2025 19:28:58 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

> I think this is a 58% improvement (in the header) rather than a 100% improvement.

To be precise, it is  58% time reduction, 100+% speed/throughput improvement, I have updated the description.

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PR Comment: https://git.openjdk.org/jdk/pull/28613#issuecomment-3603737834