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  1. JDK
  2. JDK-4531326

Server VM shows poorer performance using XML parsing benchmark program

    Details

    • Subcomponent:
    • Resolved In Build:
      04
    • CPU:
      sparc
    • OS:
      solaris_8

      Backports

        Description


        ###@###.### 2001-11-26

        J2SE Version (please include all output from java -version flag):
         JDK1.4 b84 both Server VM and Client VM

        Does this problem occur on J2SE 1.3? Yes / No (pick one)
         No

        Operating System Configuration Information (be specific):
         Solaris 8

        Hardware Configuration Information (be specific):
         UltraSPARC 400MHz x 1CPU
         128M RAM

        Bug Description:

         JDK1.4 Hotspot Server VM shows poorer performance compared to Client
         VM using XML parsing benchmark program.

        Steps to Reproduce (be specific):

        Benchmark program used: SAXBench(saxbench.zip)

        XML parser: Apache xerces.jar (1.4.3)

        Results:
        W=warm up loops before benchmarking
        N=number of times to repeat. The result shows the average of N measurements.

        Platform: 1 x UltraSPARC 400MHz 128MB RAM Solaris8
                               W=20/N=20 average(milisec)
        ----------------------------------------------
        [Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b84)]
        [Java HotSpot(TM) Server VM (build 1.4.0-beta3-b84, mixed mode) ]
        avg. = 3860 ms <----- Very Bad

        [Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b84)]
        [Java HotSpot(TM) Client VM (build 1.4.0-beta3-b84, mixed mode) ]
        avg. = 574 ms

        [Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-b24) ]
        [Java HotSpot(TM) Client VM (build 1.3.1-b24, mixed mode) ]
        avg. = 684 ms

        [Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-b24) ]
        [Java HotSpot(TM) Server VM (build 1.3.1-b24, mixed mode) ]
        avg. = 445 ms
        ----------------------------------------------

        Steps to reproduce:

        unzip the attached file saxbench.zip

        Run "run.bat" for Windows, "run.csh" for Solaris.
        Set JAVA and JAVAOPT to appropriate values in the above script files.

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                • Assignee:
                  azeemj Azeem Jiva
                  Reporter:
                  tyao Ting-Yun Ingrid Yao (Inactive)
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                    Updated:
                    Resolved:
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