JDK-8290966 : G1: Record number of PLAB filled and number of direct allocations
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 20
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2022-07-25
  • Updated: 2024-08-07
  • Resolved: 2022-08-01
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JDK 17 JDK 20
17.0.13Fixed 20 b09Fixed
Related Reports
Relates :  
JDK-8288966 - Better handle very spiky promotion in G1
Relates :  
JDK-8258088 - Improve G1 PLAB allocator pathological case where it keeps doing direct allocations
Description
Gather number of PLABs filled and number of direct allocations during GC. This is a useful statistics to understand PLAB sizing better.
Comments
[jdk17u-fix-request] Approval Request from Ben Taylor Clean, low risk backport of a change to improve GC logging around full PLABs and direct allocations.
05-08-2024
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk17u-dev/pull/2777 Date: 2024-08-02 21:36:02 +0000
02-08-2024
Changeset: 30205bb2 Author: Thomas Schatzl <tschatzl@openjdk.org> Date: 2022-08-01 09:53:37 +0000 URL: https://git.openjdk.org/jdk/commit/30205bb289e9b25d60474b24b891e15923071b5a
01-08-2022
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/9626 Date: 2022-07-25 14:11:24 +0000
25-07-2022