IBM Support

Determining how much memory you have on HP-UX

Question & Answer


Question

Memory on HP-UX - How to use dmesg to determine the amount of physical memory you have.

Answer


When tuning IBM Informix® database servers you need to know the amount of memory on your HP-UX system. The values you use in the Shared Memory Parameters section of the ONCONFIG configuration file determine the amount of memory the database server needs. The amount of memory on the computer limits how much memory the database server has available.

On HP-UX you can use the command dmesg to determine how much physical memory the computer has. This command (located in /usr/sbin) queries a buffer for recently printed diagnostic messages and prints them on the standard output.


STEPS

    1. Log in as user root

    2. Run the command dmesg


    Example:

    This is an example from a computer with 5 GB of physical memory.

    $ dmesg

    Memory Information:
    physical page size = 4096 bytes,
    logical page size = 4096 bytes
    Physical: 5242880 Kbytes, lockable: 4051216 Kbytes,
    available: 4651796 Kbytes

Note: Contact your OS support if you need additional help with this command or other ways to identify the amount of memory on your computer.
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Document Information

More support for:
Informix Servers

Software version:
10.0, 11.1, 7.3, 9.4, 11.5

Operating system(s):
HP-UX

Document number:
332117

Modified date:
16 June 2018

UID

swg21143448

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