DataPower contains a file called DPmon that stores nmon information. This is extremely useful for investigating resource constraints

Once the file is extracted from DataPower temporary:///dpmon/dpmon it can be loaded into NMONVisualizer.

This can be downloaded from https://nmonvisualizer.github.io/nmonvisualizer/

Before the file can be loaded in it must be manually renamed to add .nmon extension.

(image above taken from NMONVisualizer website)