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  1. JDK
  2. JDK-5004651

Startup performance regression in NetBeans3.6 on JDK1.5.0

    Details

    • Subcomponent:
    • CPU:
      x86
    • OS:
      windows_xp

      Description

      The startup time of NetBeans application on Win XP executed with J2SDK1.5.0 is worse than with J2SDK1.4.2. Though there is no big difference on a warm vanilla start more complex cases show significant regression (~19%).

      Here are steps how to reproduce this behaviour:
      - download & install/extract NetBeans3.6beta (build 200402042050) from http://www.netbeans.org/downloads/ide/development.html . It is enough to d/l zip archives.
      - run the IDE from dir where it is extracted with command
      'netbeans\bin\runide.exe -userdir testuserdir -jdkhome <path_to_jdk> -J-Dnetbeans.full.hack=true'

      Measured values for IDE start on rebooted machine with j2sdk1.5.0b39 (two columns for two repeated measurements):
      Cold start:
      46.7 46.8
      Subsequent (warm) starts:
      8.5 8.6
      8.3 8.1
      7.6 7.5
      7.4 7.5
      Open 3 files (ColorPreview, ColorPreviewBeanInfo, README) and output window shown:
      25.3 25
      25.5 25.2
      25.4 25
      The same setup with class sharing turned off (-J-Xshare:off added to command line option):
      27.8 27.4
      26.4 25.8
      26.4 26.4
      26.3 26.1

      Results when the same case is run on J2SDK1.4.2_03
      Cold start:
      45.1 42.1
      Subsequent (warm) starts:
      8.2 8.1
      8.3 8.2
      7.6 7.6
      7.6 7.6
      Open 3 files (ColorPreview, ColorPreviewBeanInfo, README) and output window shown:
      21 21.1
      21.2 21
      21.3 21

      ###@###.### 2004-02-27
      ###@###.### 2004-02-27

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            • Assignee:
              resii Robert Strout
              Reporter:
              duke J. Duke (Inactive)
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              • Created:
                Updated:
                Resolved:
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