Hi guys,
I'm having a hard time of gaining a feeling for what is a high CPU Utilization, when I should consider it high, or be worried that jobs are hogging CPU resources?
From what I understand currently, CPU% Utilization is just the percentage of time the processing unit was busy during the elapsed time. (How much elapsed time is a 'good' amount of time to judge CPU% on?). CPU Utilization depends on a lot of factors: Is your partition uncapped? Are you sharing processors? If so your CPU % can be greater than 100.
Using QSYS2.SYSTEM_STATUS_INFO SQL view I have found that my Configured_CPU's on my partition is 4, this partition is uncapped. Does that mean the "max" CPU % Utilization could be (4x100) 400%? I feel like the answer is yes, but I'm skeptical that it's true? Can somebody smack some sense into me on this? Another thing I frequently find is that our AVERAGE_CPU_RATE is around 80%, I believe this suggests to me that our CPU is typically throttled and operating under a low load and has the ability to handle a lot higher load, despite the frequent >100% CPU % that I see.
Thanks
SYSTEM_STATUS_INFO view
I'm having a hard time of gaining a feeling for what is a high CPU Utilization, when I should consider it high, or be worried that jobs are hogging CPU resources?
From what I understand currently, CPU% Utilization is just the percentage of time the processing unit was busy during the elapsed time. (How much elapsed time is a 'good' amount of time to judge CPU% on?). CPU Utilization depends on a lot of factors: Is your partition uncapped? Are you sharing processors? If so your CPU % can be greater than 100.
Using QSYS2.SYSTEM_STATUS_INFO SQL view I have found that my Configured_CPU's on my partition is 4, this partition is uncapped. Does that mean the "max" CPU % Utilization could be (4x100) 400%? I feel like the answer is yes, but I'm skeptical that it's true? Can somebody smack some sense into me on this? Another thing I frequently find is that our AVERAGE_CPU_RATE is around 80%, I believe this suggests to me that our CPU is typically throttled and operating under a low load and has the ability to handle a lot higher load, despite the frequent >100% CPU % that I see.
Thanks
SYSTEM_STATUS_INFO view
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