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  1. JDK
  2. JDK-8195670

JFR source of allocation pressure when instrumenting file events

    Details

    • Subcomponent:
      jfr
    • Resolved In Build:
      b31
    • CPU:
      x86_64
    • OS:
      linux

      Description

      FULL PRODUCT VERSION :
      java version "1.8.0_131"
      Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
      Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

      ADDITIONAL OS VERSION INFORMATION :
      4.13.10-100.fc25.x86_64 #1 SMP Fri Oct 27 17:05:04 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

      A DESCRIPTION OF THE PROBLEM :
      Similar to JDK-8187234
      With JFR enabled, jdk.jfr.events.File*Event cause allocation pressure for long running File interacting processes.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Similar to JDK-8187234
      A program that reads/writes to file with JFR file events enabled.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      No allocation on event
      ACTUAL -
      Object allocation on the event

      REPRODUCIBILITY :
      This bug can be reproduced always.

      CUSTOMER SUBMITTED WORKAROUND :
      Disabling file events.

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              • Assignee:
                redestad Claes Redestad
                Reporter:
                webbuggrp Webbug Group
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                Dates

                • Created:
                  Updated:
                  Resolved: