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  1. #1
    Join Date
    Nov 2003
    Posts
    4

    Post Memory consumption on HP-UX

    Hi,

    how do I find out how much memory Oracle uses on an HP-UX box?

    Finding the shared memory portion (i.e. SGA) is fairly easy...

    But how do I find out how much memory each dedicated user process is consuming?

    Or is the rule of thumb like this: no matter whether you have 10 or 500 users, the memory consumed by the user processes will never exceed pg_aggregate_target?

    This would mean that the maximum memory consumption is SGA + PGA_AGGREGATE_TARGET. No matter how many users are on the system (of course you would size PGA_aggregate_target accordingly beforehand).

    This is 9.2 on HP-UX 11.

    Thanks,
    Helmut

  2. #2
    Join Date
    Nov 2003
    Posts
    9
    When PGA_AGGREGATE_TARGET parameter is set oracle 9i will ignore all of the PGA parameters in the init.ora, including all parameter like sort%.
    Once the pga_aggregate_target has been set oracle will automatically manage PGA memeory allocation, based upon the individual needs
    It can be dynamically changed by alter system command.

    There are some workarea_% parametee which can be used in conjuction with the pga_aggregate_target.

    Total Unix Ram=fixed sga+ pga + ram reserved for OS

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