JDK-8197932 : Better split work in rebuild remembered sets phase
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 11
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2018-02-14
  • Updated: 2018-06-21
  • Resolved: 2018-03-28
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JDK 11
11 b10Fixed
Related Reports
Blocks :  
JDK-8180415 - Rebuild remembered sets during the concurrent cycle
Description
Currently, when rebuilding remembered sets, one thread takes a whole single region to scan as work unit.

This, particularly for large regions, can defer the pause quite a bit, i.e. increase time to safepoint quite a bit.

Split up the work in parts, each with a yield-point at the end.