Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8232620

General sampling heap allocation event

    Details

    • Type: Enhancement
    • Status: In Progress
    • Priority: P3
    • Resolution: Unresolved
    • Affects Version/s: 14
    • Fix Version/s: tbd
    • Component/s: hotspot
    • Subcomponent:
      jfr
    • Understanding:
      Cause Known

      Description

      After seeing first hand how useful allocation profiling events are in production, but also how extremely expensive they are, we really need to introduce a less costly sampling heap allocation event. One that gives a statistically accurate picture of how much memory is allocated along with the stack traces, but that has a more configurable emission rate. For certain high allocation loads, the recordings can get quite large and they can also introduce quite a bit of overhead.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                jbachorik Jaroslav BachorĂ­k
                Reporter:
                hirt Marcus Hirt
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated: