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  1. JDK
  2. JDK-6335793

HPROF file dumps on Windows slower than expected

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    • b60
    • x86
    • windows

      Subject says it all and the problem can be easily reproduced/verified.

      It is believed the main cause is unbuffered I/O. Testing with 512MB heaps
      resulted in ~60 seconds to dump the HPROF file. A temporary fix of the
      buffering issue was tried and this reduced the dump to 23 seconds, which
      seems more reasonable.

            alanb Alan Bateman
            clucasius Carlos Lucasius (Inactive)
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