Re: Heavy performance problems (I/O)

From: at (R.Mariotti)
Date: 12/26/03

  • Next message: Burkhard Schultheis: "Re: Please help: Big HACMP problem" 
    Date: Thu, 25 Dec 2003 23:21:25 GMT

    On 24 Dec 2003 00:59:36 -0800, geekorg@yahoo.de (Oli) wrote:

    >Hi AIX world
    >
    >Our new bank application performs very bad since weeks (AIX 4.3.3).
    >During my investigations, I found out, that some processes produces
    >massive more write than read operations during the day (ESS disk).
    >
    >Using lsof, I found about 600 files at the related filesystem which
    >are open for read and write (I/O) by the application (jBASE ops).
    >
    >What I'm interested on is howto find out, which of these 600 files are
    >heavily used for write operations. I'm looking for a utility which is
    >able to monitor the I/O from a file (filemon was not able to do that).
    >
    >Tips? Thanks
    >Oli

    Oli;

    Just for information... what banking system are you using?

    Bob

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