[HPADM] speed up - change Kernel Parameters?

From: Andreas Fischer (fischer_at_science-computing.de)
Date: 11/19/03

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    Date: Wed, 19 Nov 2003 15:50:06 +0100 (CET)
To: hpux sysadmin mailing list <hpux-admin@dutchworks.nl>

    Hallo,

    model: U 9000/782/C200+ (about 5-6 years old)
    OS: HP-UX B.11.11
    RAM: 512 MBbyte

    I installed HP-UX 11.11 in its 64bit version on the machine above. Since
    then the computer seems to be quite slow. "top" doesn´t show any
    "abnormalities" though - at least I could never detect any.

    specifying slow:
    We are especially using accoustic-measurement software, no CAD
    applications (which I suppose are quite RAM-Consuming). However after
    starting the application, the computer seems to "hang" from time to time.
    No input by keyboard or mouse is possible. After about 1 minute input is
    possible again.

    Do you know if it makes sense to change some kernel-parameters in order to
    "speed up" the computer? Which kernel parameters would you try to change?
    (maxdsiz?)
    Is the machine simply too old for HP-UX11.11?

    I found the same effect on another similarly installed machine, which is
    the same model but has only 256Mbyte RAM.

    Thank you for your help.

    Andreas Fischer 

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