RFR: 8312116: GenShen: make instantaneous allocation rate triggers more timely [v4]

[Kelvin Nilsen]

On Thu, 8 Jan 2026 21:29:23 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Kelvin Nilsen has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 65 commits:
>> 
>>  - Fix comment
>>  - Use PROPERFMT macros
>>  - Simplify code flow: reviewer suggestion
>>  - Merge remote-tracking branch 'jdk/master' into accelerated-triggers
>>  - Remove develop/debug instrumentation
>>  - add another override
>>  - Change type of command-line args
>>  - fix white space
>>  - Add override to virtual methods
>>  - Fix race between allocation reporting and querying
>>  - ... and 55 more: https://git.openjdk.org/jdk/compare/dd20e915...7f3a6d1e
>
> src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.cpp line 145:
> 
>> 143: }
>> 144: 
>> 145: double ShenandoahAdaptiveHeuristics::get_most_recent_wake_time() const {
> 
> This introduces a cyclic dependency between control/regulator threads and the heuristics. Since control/regulator threads already _know_ about heuristics, could we instead have the threads invoke setters on the heuristics to provide these values?

I've refactored this code now according to your suggestion.  Thanks.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29039#discussion_r2695322992