I have recently attended the SilkPerformer Results Analysis course and found it very helpful. I was wondering whether anyone has documented standard problems that can be seen when looking at graphs, e.g. what a memory leak looks like, how to find a NIC problem, etc.
There is a new piece of functionality in version 6.5/6.5.1 were you can find 'Root Cause' by executing the correlation wizard.
Also your example of memory leak and NIC problems depend on how your script is configured i.e. application type and also how your agent and/or server monitor/s are set up.