Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8080919

Perf: SPECjb2013 critical jOPs - up to 50% regressed

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1
    • Resolution: Duplicate
    • Affects Version/s: 8u45
    • Fix Version/s: None
    • Component/s: performance
    • Labels:
      None
    • Subcomponent:
    • Introduced In Build:
      b45
    • Introduced In Version:
    • CPU:
      x86
    • OS:
      linux

      Description

      SYNOPSIS:
      Perf: SPECjb2013 critical jOPs - up to 50% regressed

      OPERATING SYSTEM(S):
      All platforms

      FULL JDK VERSION(S):

      jdk 8u45

      DESCRIPTION:

      STEPS TO REPRODUCE:
      Run benchmark test SPECjbb2013 on configuration Multi-JVM (2-group).

      Result obtained :
      critical jOPS regression by 50%
                                                    maxJOPs critical_jOPS hbIR_max hbIR_settled
      =============================================================================
      jdk 8u25 (20140917) 28193.667 12447 33169 31275
      jdk 8u45 (20150410) 28110.750 8449 33169 31042

      Expected Result :
      The regression doesn't happen.


      Description:
      The regression is caused by an oracle bug change "8056248: Improve ForkJoin thread throttling".


      Proposed fix :

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                sfriberg Staffan Friberg (Inactive)
                Reporter:
                youdwei Deven You
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: