Analyzing scheduled KPI affecting CPU usage and performance. What could be the reason

Analyzing scheduled KPI affecting CPU usage and performance. What could be the reason

For Scheduled KPI, when we click on 'Analyze' button, a 'Schedule Report' page gets displayed. There's an option to select the generation type of the output (either Excel or XML). By opting for 'XML' method, the data retrieval will be considerably faster. Whereas by selecting the 'Schedule Now' button, it directly executes the report without displaying the type of file to be generated. Attached doc containing screen prints will help. For scheduled KPIs which has large result, we suggest to always use 'Analyze' --> select the 'Recurrence Pattern' -->opt for XML