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Workload

 Workload is also referred to as Active Time.
 
Workload is a measurement of the Oracle instance's net processing time, measured in seconds. Workload is calculated by aggregating the net activity (non-idle time) for all Oracle processes.
 
Performance Analysis considers an Oracle process active when it is either:
 
Consuming CPU
 
Queued by the operating system, waiting for CPU to become available
 
Marked by Oracle as active with a non-idle wait event 
 
The Workload indication is used in various contexts to reflect application load; such contexts can be the overall Oracle instance load, individual session activity, program load over time, etc. and its interpretation may vary among the various totaling methods:
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