Calculate CPU usage from SNMP CPU ticks

moonb0w

We have TippingPoint Secure Management System (SMS) that having different exposed OID with other IPS TippingPoint, this one use UC Davis SNMP MIB

So we got below OID which is a CPU ticks:

UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 633703849

UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 325761775

UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 2539553087

I read on online to calculate from CPU ticks is require delta value, so need 2 samples of value taken from different time.

But I don’t see if UnDP is supported to store a variable and and transform such things

any way to achieve this?

1. Collect two samples at time t1 and t2:
   • user1, system1, idle1 at t1
   • user2, system2, idle2 at t2
2. Compute deltas:
   deltaUser = user2 - user1
   deltaSystem = system2 - system1
   deltaIdle = idle2 - idle1
3. Compute total delta:
   deltaTotal = deltaUser + deltaSystem + deltaIdle
4. Calculate percentages:
   CPU_User%   = (deltaUser / deltaTotal) * 100
   CPU_System% = (deltaSystem / deltaTotal) * 100
   CPU_Idle%   = (deltaIdle / deltaTotal) * 100

ref:

monitoring - How to calculate CPU % based on raw CPU ticks in SNMP - Server Fault

attached full snmpwalk output for reference

[View:/cfs-file/__key/communityserver-discussions-components-files/4/snmpwalk-tippingpoint-sms.txt:820:615]