RFR: 8318986: Improve GenericWaitBarrier performance [v2]

Mon Nov 6 10:54:06 UTC 2023

On Thu, 2 Nov 2023 20:57:31 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> I think this is good for review. The reproducer that used to hang/fail on assert is now passing. `tier1 tier2 tier3` are all passing. I am running more tests overnight.

Testing seems all good. I'll leave the `Linux` -> `Generic` switch in this PR, until the very last moment before integration to keep testing more easily.

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PR Comment: https://git.openjdk.org/jdk/pull/16404#issuecomment-1794549935