1.3.2 Differences in performance data collection from PFM - Agent for Virtual Machine
Before a PFM - RM for Virtual Machine instance can collect performance data, you must specify the Interval setting (collection process execution interval) during instance environment setup. Note that this setting does not exist in PFM - Agent for Virtual Machine.
PFM - Agent for Virtual Machine collects performance data at the interval specified by the Collection Interval property. PFM - RM for Virtual Machine executes the collection process at the interval specified by the Interval property (the default is 300 seconds) to create a temporary performance information file. PFM - RM for Virtual Machine then collects performance data from that file at the interval specified by the Collection Interval property (the default is 300 seconds). For this reason, the Collection Interval value must be larger than the Interval value.
If the value of the Collection Interval property is smaller than the value of the Interval property, performance data will be collected at the interval specified by the Interval property.