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  1. JDK
  2. JDK-8262165

NMT report should state how many callsites had been skipped

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    • Enhancement
    • Resolution: Fixed
    • P4
    • 17
    • 17
    • hotspot
    • None
    • b19

    Description

      (This is a breakout from JDK-8261238, which seems to be stuck in review limbo (https://github.com/openjdk/jdk/pull/2428). In order to make that one more concise, I factor out the display changes, which hopefully are non-controversial enough to get upstream easily.)

      NMT silently omits call sites in its report whose allocation rate is too small to get over a certain, hidden, threshold:
      - there is a hard wired threshold of 1K in the baseline collector
      - then, we skip all sites whose size is less than what the unit is (eg scale=G, we skip all allocations < 1G

      NMT should state how many call sites had been omitted.


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              stuefe Thomas Stuefe
              stuefe Thomas Stuefe
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                Updated:
                Resolved: