JDK-6817598 : G1: remove unnecessary card traversals
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs15
  • Priority: P5
  • Status: Closed
  • Resolution: Duplicate
  • OS: generic
  • CPU: generic
  • Submitted: 2009-03-16
  • Updated: 2023-12-13
  • Resolved: 2011-08-15
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tbdResolved
Related Reports
Duplicate :  
JDK-6826318 - G1: remove traversal-based refinement code
Description
Since Andrey's push for 6760309, we don't need to traverse all cards before a GC to find cross-region references; we can just rely on RSets. Also, there's still an option in G1 to turn off update buffer concurrent refinement and do it instead by traversing cards. We never use that. So, it'd be nice to rip out the card traversal code we don't need to simplify G1.
Comments
PUBLIC COMMENTS We did this as part of 6826318, so I'm closing this one as a dup.
15-08-2011