Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8195670

JFR source of allocation pressure when instrumenting file events

XMLWordPrintable

    • jfr
    • b31
    • x86_64
    • linux

      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.

            redestad Claes Redestad
            webbuggrp Webbug Group
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

              Created:
              Updated:
              Resolved: