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  1. JDK
  2. JDK-8205725

Update the JVMTI Spec for Heap Sampling

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P2
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 11
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Introduced In Version:
      11
    • Resolved In Build:
      b23

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        Description

        The spec for the heap sampling system has three elements that should be fixed/updated:

        1) Instead of sampling_rate, it should be referred to as a sampling_interval; since a rate is a frequency.

        2) The spec does not define correctly how soon does it produce a callback when setting the interval to 0; this can lead to confusion.
              Fix this by putting in the spec that the setting of a rate is not an immediate effect, it may take time to start

        3) The sampling interval should be defined more generally, instead of providing information such as geometrical variable.

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                • Assignee:
                  jcbeyler Jean Christophe Beyler
                  Reporter:
                  sspitsyn Serguei Spitsyn
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                    Updated:
                    Resolved: