Re: Vmtune question SOLVED. What is NaNQ%?

From: Andrew Townsend (Andrew.Townsend_at_BISYS.COM)
Date: 12/28/04

  • Next message: Mills, John T (9814): "Re: Vmtune question SOLVED. What is NaNQ%?" 
    Date:         Tue, 28 Dec 2004 14:08:07 -0500
To: aix-l@Princeton.EDU

    Initially, I was reading
    http://www.mppmu.mpg.de/computing/AIXuser/xlf-fltrap.html which refers to
    fortran on AIX. A quote from there says "It is default on AIX that an
    invalid floating-point number given as NaNQ (Not A Number) and the program
    continues running without any exception handling." which scared the heck
    out of me. So I did an lppchk ?v to see if I was missing something that may
    affect the output. As it turns out, my version of bos.adt.samples was
    back-level. I was at 5.1.0.35. I upgraded it to 5.1.0.55, rebooted, and it
    was all good. I could make the necessary changes at the command line, and
    make them permanent in the inittab. Why bos.adt.samples? The which_fileset
    command said it resides there. Why would IBM put the vmtune command in
    bos.adt.samples?

                          Holger.VanKoll@SW
                          ISSCOM.COM To: aix-l@Princeton.EDU
                          Sent by: IBM AIX cc:
                          Discussion List Subject: Re: Vmtune question. What is NaNQ% ?
                          <aix-l@Princeton.
                          EDU>

                          12/28/2004 01:07
                          PM
                          Please respond to
                          IBM AIX
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    i dont know what the q means, some further distinction
    here is a bit stuff about that:
    http://www.unm.edu/cirt/introductions/aix_xlfortran/xlflrm26.htm

    afaik means as far as i know,
    http://www.geocities.com/SouthBeach/Lagoon/9819/acronyms.html

    -----Original Message-----
    From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
    JOSEPH KREMBLAS
    Sent: Tuesday, December 28, 2004 6:38 PM
    To: aix-l@Princeton.EDU
    Subject: Re: Vmtune question. What is NaNQ% ?

    What does 'afaik' mean?

    -----Original Message-----
    From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
    Holger.VanKoll@SWISSCOM.COM
    Sent: Tuesday, December 28, 2004 9:47 AM
    To: aix-l@Princeton.EDU
    Subject: Re: Vmtune question. What is NaNQ% ?

    nan means "not a number", inf (afaik) = infinitive

    you should check if your vmtune is correct for you os/kernelversion

    -----Original Message-----
    From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
    Andrew Townsend
    Sent: Tuesday, December 28, 2004 7:39 AM
    To: aix-l@Princeton.EDU
    Subject: Vmtune question. What is NaNQ% ?

    I am trying to change a few of the tuning parameters on our AIX5.1 ML3
    p660 running in 64bit mode for the dba. When I view the current settings
    using vmtune (and/or vmtune64), I see a value for numclient as NaNQ%.
    What does this mean?

    number of valid memory pages = 3145712 maxperm=INF% of real memory
    maximum pinable=80.0% of real memory minperm=INF% of real memory
    number of file memory pages = 0 numperm=NaNQ% of real memory
    number of compressed memory pages = 11127 compressed=INF% of real
    memory
    number of client memory pages = 0 numclient=NaNQ% of real memory
    # of remote pgs sched-pageout = 0 maxclient=INF% of real memory

    When I try to change the settings for maxclient using vmtune, it also
    goes into a NaNQ%. If I then try to change the maxperm and minperm, they
    go into a NaNQ% and the system hangs and requires a hard reboot. The dba
    recomended the settings for minperm=2% and maxperm=3%. This box is
    running the database only and no other applications.

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  • Next message: Mills, John T (9814): "Re: Vmtune question SOLVED. What is NaNQ%?"

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