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  1. JDK
  2. JDK-8241361

ZGC: Implement memory related JFR events

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 15
    • 15
    • hotspot
    • gc
    • b18

    Description

      ZAllocationStall - Record when we run out of heap memory and the Java threads stall, waiting for the GC to free up memory.

      ZPageAllocation - Updated the existing event to also record the duration of the event.

      ZPageCacheFlush - Record when the page cache needs to be flushed. This usually happens when we run out of a specific page size and have to detach the physical and virtual memory to materialize a new ZPage. We also flush pages when we uncommit memory.

      ZRelocationSet - Record information about the selected relocation set.

      ZUncommit - Record when we uncommit and hand back memory to the OS.

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            stefank Stefan Karlsson
            stefank Stefan Karlsson
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              Created:
              Updated:
              Resolved: