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  1. JDK
  2. JDK-4089554

-prof cpu performance numbers suspect

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Details

    • Bug
    • Resolution: Duplicate
    • P3
    • None
    • 1.1.4
    • hotspot
    • x86
    • windows_nt

    Description



      Name: rm29839 Date: 10/29/97


      Running on W/NT 4.0, with the JDK 1.1.4
      interpreter, I used -prof. Thankfully,
      the heap reporting now works (it was broken
      in JDK 1.1.1, 1.1.2, and 1.1.3). But, the
      CPU values are incorrect.

      I see callee's that are only from java/lang,
      java/io, sun/jdbc, and COM/Vitria. But,
      I have classes that are in a package called
      hubscan. These only appear as caller's.
      Thus, they are never on the "left side"
      of the -prof output, but appear only
      on the right. From the -prof output,
      it would seem that the program does little
      but gc (15 sec), while it actually spends much
      of it's time doing real work (it ran
      for eight minutes consuming almost
      all of the CPU).

      It would seem that only classes in java,
      sun, and COM are being allowed
      (Review ID: 14489)
      ======================================================================

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              sliangsunw Sheng Liang (Inactive)
              rmandelsunw Ronan Mandel (Inactive)
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