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  1. JDK
  2. JDK-8232620

General sampling heap allocation event

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 14
    • Fix Version/s: 16
    • Component/s: hotspot
    • Subcomponent:
      jfr

      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.

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              Assignee:
              jbachorik Jaroslav BachorĂ­k
              Reporter:
              hirt Marcus Hirt
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