JDK-8273626 : G1: Factor out concurrent segmented array from G1CardSetAllocator
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2021-09-11
  • Updated: 2021-11-30
  • Resolved: 2021-10-19
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JDK 18
18 b20Fixed
Related Reports
Blocks :  
JDK-8254739 - G1: Optimize evacuation failure for regions with few failed objects
Relates :  
JDK-8274993 - G1: support concurrent freeing of segments after GC in evacuation failure handling
Relates :  
JDK-8275607 - G1: G1CardSetAllocator::drop_all needs to call G1SegmentedArray::drop_all
Relates :  
JDK-8274987 - G1: reuse the newly allocated G1SegmentedArrayBuffer even if current thread failed the race
Relates :  
JDK-8276094 - Region Pinning in G1
Relates :  
JDK-8267834 - Refactor G1CardSetAllocator and BufferNode::Allocator to use a common base class
Relates :  
JDK-8274988 - G1: refine G1SegmentedArrayAllocOptions and G1CardSetAllocOptions
Relates :  
JDK-8275381 - G1: refactor 2 constructors of G1CardSetConfiguration
Description
Enhance G1CardSetAllocator(and G1CardSetBuffer, G1CardSetBufferList) to support element size less than pointer size, and factor out this basic function as a more generic segmented array (G1SegmentedArray).

Note: this is not a duplicate as JDK-8267834.
Comments
Changeset: d17d81a8 Author: Hamlin Li <mli@openjdk.org> Date: 2021-10-19 12:24:21 +0000 URL: https://git.openjdk.java.net/jdk/commit/d17d81a8b2a6336f37e17f31413a62c7adf49936
19-10-2021