Re: AIX Memory and Paging Space

From: Mark Ray (raym_at_US.IBM.COM)
Date: 05/04/05

  • Next message: jeff barratt-mccartney: "Re: AIX/SAN Storage" 
    Date:         Wed, 4 May 2005 08:26:45 -0400
To: aix-l@Princeton.EDU

    Simon is correct; svmon would be your best bet to monitor real memory.
    Here's the syntax to
    do so; by adding an interval count in with the command, you can easily make
    a script that
    will capture snapshots of real memory usage:

    svmon -Pu -t 3|grep -p Pid|grep '^.*[0-9]'

    Basically, this command lists out you top users of real memory.

    Mark Ray

                 "Green, Simon"
                 <Simon.Green@EU.A
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                                           Re: AIX Memory and Paging Space

                 05/04/2005 05:06
                 AM

                 Please respond to
                      IBM AIX
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    AIX will always try to use 100% of real memory, (apart from a very small
    amount left unused for sudden demands). If you've got enough memory,
    paging space use will be very low: 5% is about right, allowing for the
    overheads of LVM and a small amount of paging space use after a boot.

    There are several tools which can give you a more detailed picture of how
    memory is being used. "svmon" is very comprehensive. Tools such as topas
    and nmon will also give you a bit more information. 

    --
Simon Green
Altria ITSC Europe s.a.r.l.
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      -----Original Message-----
      From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf
      Of Akash Jain
      Sent: 04 May 2005 07:00
      To: aix-l@Princeton.EDU
      Subject: AIX Memory and Paging Space
      Hi,
      Is it correct to say that AIX server is running on full 100%
      utilisation and memory usage is below 5%( paging space). What does
      this mean? Please explain if any one has any idea about it.
      Is there anyway of monitoring actual memory utilisation without
      paging space.
  • Next message: jeff barratt-mccartney: "Re: AIX/SAN Storage"

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