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  1. JDK
  2. JDK-4806446

scimark FFT 11.1% drop between s9u3_01 and s9u3_02 due to JRE change

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Duplicate
    • Affects Version/s: 1.4.1_01, 1.4.2
    • Fix Version/s: None
    • Component/s: hotspot
    • Subcomponent:
    • CPU:
      generic, x86
    • OS:
      linux, solaris_9

      Description

      Hi,

      we're seeing an -11.1% performance drop between s9u3_01 and s9u3_02 builds in Scimark benchmark, namely its sci_14_lrg2aServer_FFT metric.

      We believe it's due to the fact that Java Runtime Environment has changed between the named two builds.

      In s9u3_01 JRE was:
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0_02-b02)
      Java HotSpot(TM) Server VM (build 1.4.0_02-b02, mixed mode)

      In s9u3_02 JRE was:
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
      Java HotSpot(TM) Server VM (build 1.4.1_01-b01, mixed mode)

       Build %Change Mean %Range %Stdev Runs TTest
      s81_58shwpl3 -- 10.30 2.83 0.66 20 --
      s9u3_01 1.16 10.42 2.38 0.97 4 1.000
      s9u3_02 -9.94 9.28 3.10 0.80 40 0.000
      s9u3_03 -9.66 9.31 1.85 0.57 18 0.105
      s9u3_04 -9.52 9.32 1.66 0.43 19 0.349
      s9u3_05 -9.65 9.31 2.13 0.57 20 0.372

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              • Assignee:
                sdeversunw Steve Dever (Inactive)
                Reporter:
                duke J. Duke (Inactive)
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