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  1. JDK
  2. JDK-8284995

G1: Do not mark through Closed Archive regions during concurrent mark

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 19
    • 19
    • hotspot
    • gc
    • b20

    Description

      Contents of closed Archive regions are supposed to be always live. Currently G1 marks through them anyway. See if there is a cheap way to avoid that.

      One option to avoid marking and scanning through the could be setting ntams to bottom at mark start.

      Full GC already does not mark through these regions.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8283555 G1: Concurrent mark accesses uninitialized BOT of closed archive regions

          • P1 - Blocks development and/or testing work, production could not run.
          • Closed
          links to

          Commit Commit openjdk/jdk/82f0ac02

          Review Review openjdk/jdk/8315

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              tschatzl Thomas Schatzl
              tschatzl Thomas Schatzl
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              Dates

                Created:
                Updated:
                Resolved: