Monitoring performance

Performance monitoring includes checks for traffic measurements, memory usage, and process status.

Procedure

To request traffic measurements from the Messaging server using the SMI, perform the following:
1. On the Administration menu, click Messaging > Server Reports > Measurements (Storage).
2. On the Messaging Measurements Web page, select the required information.
3. Click Get Report.
  The system displays the traffic details in a report.
To check memory-related details on the Messaging server using the SSH terminal, perform the following:
1. Log in to the Messaging server using the SSH Terminal.
2. On the shell prompt, type vmstat and click Enter.
  The system displays the following fields related to memory usage:
  - swpd: The amount of virtual memory used.
  - free: The amount of idle memory.
  - buff: The amount of buffer memory used.
  - cache: The amount of cache memory used.
  Check the memory usage details for the Messaging server. The values are in KiloBytes (KB).
  
  If the system is running, the free memory is usually low. Free memory is wasted memory, that is, memory not used for anything. Linux systems use the memory as much as possible. However, if memory is available, buffers and caches use the memory.
  
  In a system that functions properly, free memory can be under 50,000, buffer and cache memory together can easily be 1,00,000 or higher, the higher the better and virtual memory must be below 2,00,000, or ideally below 50,000.
To view the status of each application or the individual processes using the SMI, perform the following:
1. On the Administration menu, click Server (Maintenance) > Server > Process Status.
2. In the Content area, click Summary or Detailed.
3. In the Frequency area, click Display once or Refresh Page every _ seconds.
4. To display the process status of all server applications, click View.
  The system displays the Process Status Results Web page.