RFR: 8316632: Shenandoah: Raise OOME when gc threshold is exceeded

[Y. Srinivas Ramakrishna]

On Thu, 21 Sep 2023 21:57:16 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> When a mutator allocation fails, it will block on this call and wait to be notified by the control thread to retry the allocation. The notification follows a degenerated or full GC.
>
> With this change, the mutator is also allowed to call the non-blocking version when it cannot allocate because the GC overhead has been exceeded. I didn't make sense to me to have the mutator block and wait for a GC cycle when the GC threshold is already exceeded.

OK, thanks, that makes sense.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15852#discussion_r1334903148