RFR: 8373118: Test java/lang/Thread/virtual/Starvation.java timed out [v26]

[Doug Lea]

On Wed, 14 Jan 2026 13:01:14 GMT, Viktor Klang <vklang at openjdk.org> wrote:

>> Doug Lea has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Another set of contend vs deactivate vs park tradeoffs
>
> src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 1988:
> 
>> 1986:                     }
>> 1987:                 }
>> 1988:                 if (rescans > 0)
> 
> If avoiding arithmetic turns out successful, we might just introduce `static final` constants and treat this as a regular state machine :)

Ideally, runWorker would take its original form:
while(scanState != stop)  scanState = scan(scanState, ...);
But there are too many bits of state, and sometimes-slow encoding/decoding to do this. But I'll look into some compromises.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28797#discussion_r2690538961