JDK-8355319 : Update Manpage for Compact Object Headers (Production)
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 25
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • OS: linux
  • Submitted: 2025-04-22
  • Updated: 2025-05-28
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tbdUnresolved
Description
The manpage sources need to be updated.

The section "Advanced Runtime Options for Java" should note the -XX:+UseCompactObjectHeaders option and that it improves Java heap memory usage: https://docs.oracle.com/en/java/javase/24/docs/specs/man/java.html#advanced-runtime-options-for-java

The sources are here (used to not be in the open repository): src/java.base/share/man/java.md

Since UseCompactObjectHeaders seems more useful than some of the other options in the list (except the JFR and NMT options), I think it should go first.

[~rkennke] Would you like to write the description to document the option?
Comments
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/25491 Date: 2025-05-28 11:30:46 +0000
28-05-2025
Sure, I will do that.
27-05-2025
[~lfoltan] The manpage source is now in the open so can be updated by anyone.
22-04-2025