RFR: 8318986: Improve GenericWaitBarrier performance [v2]

[David Holmes]

On Thu, 9 Nov 2023 08:04:47 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> @shipilev - I'm glad that:
>> 
>> vmTestbase/nsk/monitoring/ThreadInfo/isSuspended/issuspended002.java
>> 
>> has proven to useful. I had been thinking about removing it from my weekly stress
>> kit runs since it has been a long time since I've seen a failure flushed out by that
>> test running the stress config. I think I'll keep it around for longer...
>
> All right! Any other reviewers for this? @dcubed-ojdk, @dholmes-ora, maybe?

Sorry @shipilev  I'm not in a position to evaluate the correctness or performance of this code.  As usual I'm interested in any general performance impact this may have, and any new pathologies it may introduce.

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PR Comment: https://git.openjdk.org/jdk/pull/16404#issuecomment-1804999975