Use Admin Essentials to evaluate your Core Memory usage.
Figure 1: Core Memory
From the Profile view you can also check the memory usage for both Applications and Adapters. You can also compare the memory usage here to the memory being used in your local server controls.
Figure 2: Applications Memory
If the memory for an app keeps growing over time and does not show a decrease, there may be a memory leak. Please enter an ISD ticket with Itential for any product apps or adapters showing higher memory use.