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mrosedale_13329's avatar
mrosedale_13329
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Sep 13, 2013

SNMP CPU Usage

I'm curious what the difference between these two numbers is? sysGlobalHostCpuUsageRatio (uses a 5-second polling interval) sysGlobalHostCpuUsageRatio5s (also uses a 5-second polling interval)   ...
active monitors
application health monitoring
snmp
  • Derek_Stender_1's avatar
    Derek_Stender_1
    Sep 13, 2013

    There appears to be a known issue for certain versions: http://support.f5.com/kb/en-us/solutions/public/13000/000/sol13091.html

     

Derek_Stender_1's avatar
Derek_Stender_1
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There appears to be a known issue for certain versions: http://support.f5.com/kb/en-us/solutions/public/13000/000/sol13091.html

 

Derek_Stender_1's avatar
Derek_Stender_1
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Sep 17, 2013
The F5-BIGIP-SYSTEM-MIB file shows the following: sysGlobalHostCpuUsageRatio Description: "This is usage ratio of CPU for the system. It is calculated by (sum of detals for user, niced, system)/(sum of deltas of user, niced, system, idle, irq, softirq, and iowait), where each delta is the difference for each stat over the last 10-second interval; sysGlobalHostCpuUser5s Description: "The average time spent by the specified processor in user context for the system in the last five seconds." I've pulled some extra lines out of the full description, but hopefully that gives you enough information.