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  1. JDK
  2. JDK-6987135

Performance regression on Intel platform with 32-bits edition between 6u13 and 6u14.

    Details

    • Subcomponent:
    • Resolved In Build:
      b24
    • CPU:
      x86
    • OS:
      windows_2008
    • Verification:
      Verified

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        Description

        Result of running the test case Bm1.java provided by the customer on my test server. It's a very simple test case mono threaded (lower values are better):

        JDK Version Time (ms)
                    32-bits 64-bits
        6u12 11300 9471
        6u13 11178 9455
        6u14 19810 2672
        6u15 19898 2778
        6u16 19750 2651
        6u17 19791 2733
        6u18 18973 2589
        6u19 18867 2630
        6u20 18892 2651
        6u21 18146 2645

        We are seeing a big performance regression between 6u13 and 6u14.

        The issue is seen with the -server VM argument set. Switching to -client improves the situation but still there is a little performance regression.

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                • Assignee:
                  poonam Poonam Bajaj Parhar
                  Reporter:
                  gsalaun Gildas Salaun (Inactive)
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