Total CPU Utilization of a Server

Question

How to find total CPU utilization of a server using SNMP ? I am trying to find the CPU utilization % of one server having 64 CPU's ?

Thanks.

Answer 1

I'm going to guess you're using Linux, but because you don't specify, I can't guarantee that these will be OK (although they apply to most major Unix distribution as well)

The OID's you're looking for are (taken from here):

Load

• 1 minute Load: .1.3.6.1.4.1.2021.10.1.3.1
• 5 minute Load: .1.3.6.1.4.1.2021.10.1.3.2
• 15 minute Load: .1.3.6.1.4.1.2021.10.1.3.3

CPU

• percentage of user CPU time: .1.3.6.1.4.1.2021.11.9.0
• raw user cpu time: .1.3.6.1.4.1.2021.11.50.0
• percentages of system CPU time: .1.3.6.1.4.1.2021.11.10.0
• raw system cpu time: .1.3.6.1.4.1.2021.11.52.0
• percentages of idle CPU time: .1.3.6.1.4.1.2021.11.11.0
• raw idle cpu time: .1.3.6.1.4.1.2021.11.53.0
• raw nice cpu time: .1.3.6.1.4.1.2021.11.51.0

Memory Statistics

• Total Swap Size: .1.3.6.1.4.1.2021.4.3.0
• Available Swap Space: .1.3.6.1.4.1.2021.4.4.0
• Total RAM in machine: .1.3.6.1.4.1.2021.4.5.0
• Total RAM used: .1.3.6.1.4.1.2021.4.6.0
• Total RAM Free: .1.3.6.1.4.1.2021.4.11.0
• Total RAM Shared: .1.3.6.1.4.1.2021.4.13.0
• Total RAM Buffered: .1.3.6.1.4.1.2021.4.14.0
• Total Cached Memory: .1.3.6.1.4.1.2021.4.15.0

I can't remember off the top of my head, but I think the percentage of CPU time is 100*processors, so in your case, 100% is actually 6,400%

You can find all sorts of interesting things to monitor via SNMP here.