RE: Free memory

From: Vince (jhary_at_unsane.co.uk)
Date: 07/05/05

  • Next message: Joe Schmoe: "ntop binary for 5.x in existence ? (the real ntop, not the kitchen sink one...)" 
    To: <Mathias@TeleCity.com>
Date: Tue, 5 Jul 2005 21:57:17 +0100

    Heh well that will teach me to belive what I read on the web
    without testing it myself.
    I can repeat your results and cant realy give a reason other than
    getting memory information on freebsd seems to be a bit tricky
    (see sysctl vm.vmtotal for more confusion, I'm still not sure what
    That all realy means.)

    I do my memory monitoring localy (based on the scripts at
    http://www.ag0ny.com/graphs/) and just assumed that net-snmp would
    "just work".
    My best suggestion now would be to either ask on questions@ or
    on the net-snmp mailing lists.

    Vince
     

    > -----Original Message-----
    > From: owner-freebsd-net@freebsd.org
    > [mailto:owner-freebsd-net@freebsd.org] On Behalf Of
    > Mathias@TeleCity.com
    > Sent: 04 July 2005 10:33
    > To: jhary@unsane.co.uk
    > Cc: freebsd-net@freebsd.org
    > Subject: RE: Free memory
    >
    > Forgot to mention:
    >
    > root@rs1# snmpd -v
    >
    > NET-SNMP version: 5.2.1
    > Web: http://www.net-snmp.org/
    > Email: net-snmp-coders@lists.sourceforge.net
    >
    >
    > -----Original Message-----
    > From: Mathias Kenfack-Tabakem (LON)
    > Sent: Monday, July 04, 2005 10:29 AM
    > To: 'vince'
    > Cc: freebsd-net@freebsd.org
    > Subject: RE: Free memory
    >
    > Thanks for your reply but It doesn't work. I am probably
    > doing something wrong; but not sure what. This is what I get:
    >
    > root@rs1# snmpwalk -v1 -c public localhost
    > .1.3.6.1.4.1.2021.4.11 UCD-SNMP-MIB::memTotalFree.0 = INTEGER: 36108
    >
    > root@rs1# snmpwalk -v1 -c public localhost
    > .1.3.6.1.4.1.2021.4 UCD-SNMP-MIB::memIndex.0 = INTEGER: 0
    > UCD-SNMP-MIB::memErrorName.0 = STRING: swap
    > UCD-SNMP-MIB::memTotalSwap.0 = INTEGER: 1022664
    > UCD-SNMP-MIB::memAvailSwap.0 = INTEGER: 1022664
    > UCD-SNMP-MIB::memTotalReal.0 = INTEGER: 442176
    > UCD-SNMP-MIB::memAvailReal.0 = INTEGER: 20772
    > UCD-SNMP-MIB::memTotalSwapTXT.0 = INTEGER: -1
    > UCD-SNMP-MIB::memAvailSwapTXT.0 = INTEGER: -1
    > UCD-SNMP-MIB::memTotalRealTXT.0 = INTEGER: -1
    > UCD-SNMP-MIB::memAvailRealTXT.0 = INTEGER: -1
    > UCD-SNMP-MIB::memTotalFree.0 = INTEGER: 36096
    > UCD-SNMP-MIB::memMinimumSwap.0 = INTEGER: 16000
    > UCD-SNMP-MIB::memShared.0 = INTEGER: 26072
    > UCD-SNMP-MIB::memBuffer.0 = INTEGER: 61472
    > UCD-SNMP-MIB::memCached.0 = INTEGER: 15324
    > UCD-SNMP-MIB::memSwapError.0 = INTEGER: 0
    > UCD-SNMP-MIB::memSwapErrorMsg.0 = STRING:
    >
    > root@rs1# dmesg | grep memory
    > real memory = 536805376 (511 MB)
    > avail memory = 515633152 (491 MB)
    >
    > Regards
    > Mathias,
    >
    > -----Original Message-----
    > From: vince [mailto:jhary@unsane.co.uk]
    > Sent: Friday, July 01, 2005 4:29 PM
    > To: Mathias Kenfack-Tabakem (LON)
    > Cc: freebsd-net@freebsd.org
    > Subject: Re: Free memory
    >
    > Mathias@TeleCity.com wrote:
    >
    > >Hi Guys,
    > >
    > >I am trying to find out what mib value I can use to get the free
    > memory.
    > >I am running FreeBSd5.4 on a pc compatible machine (FreeBSD
    > 5.4-RELEASE
    > >i386 GENERIC). MIB-2 gives me the total memory. I can get the free
    > >memory from a sun box using sun's mib(.1.3.6.1.4.1.2021.4.6.0) which
    > >does not work with standard pc box. Could anyone point me to
    > the right
    > >direction please?
    > >
    > >
    > >
    > If you are using net-snmp try this from
    > http://net-snmp.sourceforge.net/tutorial/tutorial-4/mrtg/
    >
    > .1.3.6.1.4.1.2021.4.11.0
    >
    >
    >
    > >Regards
    > >Mathias,
    > >
    > >
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