Login to 'NetVision' GUI and open 'Page Performance Detail' section. Apply time filter and select the concerned page from drop-down. Now you can see performance of all the resources of that particular page for the applied time period. Click the 'Trend' icon from 'Actions' field to draw the trend of any particular resource. You can also draw the trend graph for all the resources or some of the resources by selecting the checkbox(es) and clicking the 'Trend' icon.