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How IO overlapped with Createfile ,Read file ,write file will improve IO performane..? RRS feed

  • Question

  • Hiii

       How  IO overlapped with Createfile ,Read file ,write file will improve IO performance..?

       Any sample codes for the IO overlapped data transferring technique...????


    with regards
    Krish
    Tuesday, June 2, 2009 11:11 AM

Answers

  • It does nothing to improve I/O performance, it will just slow it down.  Overlapped I/O is there to allow an app to continue running while an I/O request is being completed.  If you want to find out the request is completed as fast as possible, make a blocking call.

    Hans Passant.
    • Marked as answer by Nancy Shao Monday, June 8, 2009 3:07 AM
    Tuesday, June 2, 2009 11:16 AM
    Moderator