JEP proposed to target JDK 21: 439: Generational ZGC

Mark Rotteveel mark at lawinegevaar.nl
Fri May 12 08:39:14 UTC 2023


On 03-05-2023 22:45, Mark Reinhold wrote:
> The following JEP is proposed to target JDK 21:
> 
>    439: Generational ZGC
>         https://openjdk.org/jeps/439
> 
>    Summary: Improve application performance by extending the Z Garbage
>    Collector (ZGC) to maintain separate generations for young and old
>    objects.  This will allow ZGC to collect young objects — which tend
>    to die young — more frequently.
> 
> Feedback on this proposal from JDK Project Committers and Reviewers [1]
> is more than welcome, as are reasoned objections.  If no such objections
> are raised by 23:59 UTC on Wednesday, 10 May, or if they’re raised and
> then satisfactorily answered, then per the JEP 2.0 process proposal [2]
> I’ll target this JEP to JDK 21.

The JEP has a broken link on the text "weak generational hypothesis" in 
section "Motivation": it links to 
`https://openjdk.org/jeps/(https://docs.oracle.com/en/java/javase/17/gctuning/garbage-collector-implementation.html#GUID-71D796B3-CBAB-4D80-B5C3-2620E45F6E5D)` 
instead of 
`https://docs.oracle.com/en/java/javase/17/gctuning/garbage-collector-implementation.html#GUID-71D796B3-CBAB-4D80-B5C3-2620E45F6E5D`

Mark
-- 
Mark Rotteveel



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