JEP proposed to target JDK 26: 522: G1 GC: Improve Throughput by Reducing Synchronization

Mark Reinhold mark.reinhold at oracle.com
Mon Sep 8 19:22:59 UTC 2025


The following JEP is proposed to target JDK 26:

  522: G1 GC: Improve Throughput by Reducing Synchronization
       https://openjdk.org/jeps/522

  Summary: Increase application throughput when using the G1 garbage
  collector by reducing the amount of synchronization required between
  application threads and GC threads.

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 20:00 UTC on Monday, 15 September, 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 26.

- Mark


[1] https://openjdk.org/census#jdk
[2] https://cr.openjdk.java.net/~mr/jep/jep-2.0-02.html


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