JDK-8320924 : Improve heap dump performance by optimizing archived object checks
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: svc
  • Affected Version: 11,17,21,22
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2023-11-28
  • Updated: 2025-01-27
  • Resolved: 2023-12-04
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JDK 21 JDK 22
21.0.4Fixed 22 b27Fixed
Related Reports
Relates :  
JDK-8230674 - Heap dumps should exclude dormant CDS archived objects of unloaded classes
Description
Profiling heap dumping code reveals another simple issue: mask_dormant_archived_object on dumping hotpath takes quite a bit of time. We can reflow it for better inlineability.
Comments
[jdk21u-fix-request] Approval Request from Aleksey Shipilëv Clean backport to further improve heap dump performance. Applies cleanly. Heap dump tests pass.
09-04-2024
A pull request was submitted for review. URL: https://git.openjdk.org/jdk21u-dev/pull/479 Date: 2024-04-09 07:25:38 +0000
09-04-2024
Changeset: f32ab8cc Author: Aleksey Shipilev <shade@openjdk.org> Date: 2023-12-04 08:20:23 +0000 URL: https://git.openjdk.org/jdk/commit/f32ab8cc47c8a1b4887e9c7c86b145ce4b85c546
04-12-2023
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/16863 Date: 2023-11-28 20:24:17 +0000
28-11-2023