snmp oid for memory usage, vmstat -i and others

Reply: Yuri : "Re: snmp oid for memory usage, vmstat -i and others"
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From: Victor Gamov <vit_at_otcnet.ru>
Date: Mon, 24 Jan 2022 21:42:26 UTC

Hi All

Some questions about bsnmpd.

Is it possible to get memory usage via bsnmpd?  When I tried to get 
something like "snmpget hrStorageDescr.1 hrStorageAllocationUnits.1 
hrStorageSize.1 hrStorageUsed.1" then I've got this values:

=====
HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: Real Memory Metrics
HOST-RESOURCES-MIB::hrStorageAllocationUnits.1 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 391488
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 391252
=====

How I must process it to calculate actual memory usage for machine with 
4GB RAM and without swap?

=====
$ sysctl hw | egrep 'hw.(phys|user|real)'
hw.physmem: 4243894272
hw.usermem: 3580182528
hw.realmem: 4294967296
=====


Also I want to get interrupt rate like 'vmstat -i '.

Is it possible to find such info via bsnmpd?

-- 
CU,
Victor Gamov