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Sunny_Aujla_888's avatar
Sunny_Aujla_888
Icon for Nimbostratus rankNimbostratus
Apr 07, 2011

CPU Usage through iControl and SNMP

Hi,

 

 

 

I have just finished writing a perl script which calculates the CPU usage (not TMM) by getting the metrics from an SNMP OID.

 

 

I have noticed that on _some_ of the BIG-IP appliances which have 2 CPU's (running 9.4.8), show the second CPU as _always_ 100%. Is there a way we can work around this issue?

 

 

 

*On the other boxes (running 10.0.2), it work like a charm.

 

 

 

Here are the two OID's i'm using.

 

 

 

my $sysCpuUsageRatio = '.1.3.6.1.4.1.3375.2.1.7.5.2.1.11.1.49.';

 

my $cpuIndex = '.1.3.6.1.4.1.3375.2.1.7.5.2.1.2';

 

 

 

 

I was also trying to get the CPU usage through iControl, can someone show me how I can get this done?

 

 

 

Cheers,

 

Sunny

 

dev
devops
iControl

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  • Sunny_Aujla_888's avatar
    Sunny_Aujla_888
    Icon for Nimbostratus rankNimbostratus
    Apr 08, 2011
    Tutorial is great, but i was thinking if there was something in PERL.

     

     

    Also, i'm _still_ trying to get the answer of why the 2nd CPU SNMP Metric is always at 100% on the boxes which run 9.4.8's?

     

     

     

    Thanks,

     

    Sunny

     

  • Hamish's avatar
    Hamish
    Icon for Cirrocumulus rankCirrocumulus
    Apr 11, 2011
    Have a look at walkf5stats. http://devcentral.f5.com/wiki/default.aspx/iControl/walkF5Stats.html

     

     

    It's perl... Gathers multi-cpu stats via SNMP and also stats via iControl. When it was written, multi-cpu wasn't available via iControl. So it was grafted on with SNMP. It could probably be changed now, but iControl is so much heavier than SNMP, so I've never bothered.

     

     

    H