RE: how to monitor memory usage on freebsd systems

Both! It depends which storage you want to measure. In the example
bellow 1 = Physical Memory 2 = Virtual Memory (This may change for
different systems).
 
The number at the beginning (1 or 2) is the index.
 
If you do the following command you get a table output. Column 1 is the
index. It is this number you use.
 
EXAMPLE:
 
-bash-3.00$ snmptable -cMyString -v1 <IP ADDRESS> hrStorageTable
SNMP table: HOST-RESOURCES-MIB::hrStorageTable
 
 hrStorageIndex                                hrStorageType
hrStorageDescr hrStorageAllocationUnits hrStorageSize hrStorageUsed
hrStorageAllocationFailures
              1           HOST-RESOURCES-TYPES::hrStorageRam Physical
memory               1024 Bytes       1022188        993792
?
              3 HOST-RESOURCES-TYPES::hrStorageVirtualMemory  Virtual
memory               1024 Bytes       3053796        993792
?
              6         HOST-RESOURCES-TYPES::hrStorageOther  Memory
buffers               1024 Bytes        176756             ?
?
              7         HOST-RESOURCES-TYPES::hrStorageOther   Cached
memory               1024 Bytes        575888             ?
?
              8         HOST-RESOURCES-TYPES::hrStorageOther   Shared
memory               1024 Bytes             0             ?
?
             10 HOST-RESOURCES-TYPES::hrStorageVirtualMemory      Swap
space               1024 Bytes       2031608             0
?
             31     HOST-RESOURCES-TYPES::hrStorageFixedDisk
/               4096 Bytes      16672164       1411974
?
             32     HOST-RESOURCES-TYPES::hrStorageFixedDisk
/boot               1024 Bytes        101105         12120
?

and the command you used gives the total size of the Physical Memory.
-bash-3.00$ snmpwalk -cMyString -v1 <IP ADDRESS>
hrStorageTable.hrStorageEntry.hrStorageSize.1
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 1022188
 
To get the used part of the Physical Memory, use:
 
-bash-3.00$ snmpwalk -cMyString -v1 <IP ADDRESS>
hrStorageTable.hrStorageEntry.hrStorageUsed.1
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 993544

Hope this helps.

________________________________

From: [email protected]
[mailto:[email protected]] On Behalf Of Chee
Meng Gui
Sent: 11 August 2008 05:49
To: [email protected]
Subject: how to monitor memory usage on freebsd systems


Hi All

I am trying monitor memory usage on a few Freebsd systems.
Running net-snmp-5.4.1.2  on Freebsd 6.2 and 5.4.

Question: How to monitor memory usage from the snmp info?
Is it 
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.1 ? 
Or
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.2 ?
Or  something else?

Thank you.
Gui


A section of the snmpwalk results on one system:

.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.1 = STRING: Physical memor
y
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.2 = STRING: Real memory
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.3 = STRING: Virtual memory
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.6 = STRING: Memory Buffer
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.7 = STRING: Cached memory
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.8 = STRING: Shared virtual
 memory
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.9 = STRING: Shared real me
mory
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageDescr.10 = STRING: Swap space

....

.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.1 = INTEGER: 259673
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.2 = INTEGER: 253060
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.3 = INTEGER: 121646841
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.6 = INTEGER: 28448
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.7 = INTEGER: 8621
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.8 = INTEGER: 6310
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.9 = INTEGER: 3190
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.10 = INTEGER: 1310688
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.31 = INTEGER: 5077079
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.32 = INTEGER: 2
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.33 = INTEGER: 2538519
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.34 = INTEGER: 211119221
.iso.org.dod.internet.mgmt.mib-2.host.hrStorage.hrStorageTable.hrStorage
Entry.hrStorageSize.35 = INTEGER: 15231318


-- 
Gui




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