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  1. JDK
  2. JDK-4717079

Sybase Java Application startup time is SLOW in JDK 1.4 compared to JDK 1.3.1_02

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Icon: P2 P2
    • None
    • 1.4.0
    • client-libs

      This is a continuation of bug # 4653558/4690509
      addressing Swing issues found by Fred Oliver
      See comments for further info, see attachments to
      bug# 4653558 fro test case.

      Sybase Java Application startup time is SLOW in JDK 1.4 compared to JDK 1.3.1_02

      Customer Problem Description:
      ----------------------------

      ----
      We have noticed here that jdk 1.4 starts our applications slower than
      Jdk 1.3.1 did. In fact we have found it to be about 50% worse. I
      thought I had heard that startup time was improved with JRE 1.4.

      I have attached a log file that shows my results for one application. I
      compared different java compilers, jar indexing, and the 1.3.1_02 and 1.4
      VMs.

      Are these the results I should be expecting when comparing 1.3.1_02 with
      1.4?

      I have attached a sample application which shows this behavior

      Unzip it into a directory. PerfTest2 is the batch file
      that runs everything. You will have to change:
       set jdk=1.3.1_02 to match your machine.

      PerfRun.bat assumes that your jre's are installed with the naming pattern
      c:\jdk followed by the setting for jdk in PerfTest2.bat.

      Note: I run the test once and throw the results away. Then I run it again
      - that way everything should be in memory.

      In our case jdk_1.3.1_02_13.log is the same as jdk_1.3.1_02_13c.log
      as we only run with Sun's javac compiler.


      (See attached file: perfTest2.log)

      Note: We haven't tested this application on Sparc platforms. But, if the
      performance problem does show up on Sparc, please fix it as we have
      customers using our application on Sun's UltraSparc servers.
      -----

            svioletsunw Scott Violet (Inactive)
            chrisphi Chris Phillips
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