RFR: 8291555: Implement alternative fast-locking scheme [v29]

Sat Mar 25 16:33:51 UTC 2023

On Thu, 23 Mar 2023 16:32:57 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> Roman Kennke has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Merge remote-tracking branch 'origin/JDK-8291555-v2' into JDK-8291555-v2
>>  - Set condition flags correctly after fast-lock call on aarch64
>
> Is anybody familiar with the academic literature on this topic? I am sure I am not the first person which has come up with this form of locking. Maybe we could use a name that refers to some academic paper?

@rkennke Would you mind integrating these changes to LockStack: https://github.com/tstuefe/jdk/tree/10907%2Blockstack-veris

Mainly lockstack wiping unused slots on pop, more verifications and better output.

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PR Comment: https://git.openjdk.org/jdk/pull/10907#issuecomment-1483864128