Memory utilization is not displayed in the Performance TAB for the Cisco ASA firewall.
Release : 22.2.x, 23.3.x
Here are the steps to workaround the missing Memory Utilization for the Cisco ASA Firepower 4110 SM12:
1. Set the following values for the memory attributes (in the device's Attributes TAB):
2. Then reconfigure the model. Right-click on the device, select Reconfiguration --> Reconfigure Model
3. In the Thresholds and Watches subview, under Thresholds, the Memory source is Attribute Redirection.
4. Memory utilization is now visible in the Performance TAB: