Significant differences in memory usage between the primary and mirror servers in a 4D architecture are expected, as each server fulfills distinct roles with different workloads and cache behaviors.

1. The primary server:
   
   
   
   • Handles interactive users (UI-based interactions)
   
   
   • Executes automated tasks and robot processes


2. The mirror server:
   
   
   
   • Is typically free from user interaction delays
   
   
   • Integrates data progressively, so its cache usage increases over time
   
   
   • May be used for read-only operations, depending on the configuration

1. MEMORY STATISTICS Command
   
   
   
   • View current cache usage
   
   
   • Compare memory usage between the primary and mirror servers


2. 4D Server Activity Monitor
   
   
   
   • Use the "Processes" tab in the server administration window
   
   
   • Monitor the activity and load of individual processes in real time