The Memory Analysis Dashboard¶
The Memory Analysis dashboard provides an overview of the memory usage for the selected server and server host for the previous week:
Use parameters on the PEM Server Configurations dialog to specify the auto-refresh rate for the dashboard. To access the Server Configuration dialog, select Server Configuration… from the PEM web interface Management menu.
The Memory Analysis dashboard header displays the date and time that the server was started, the date and time that the dashboard was last updated and the number of current alerts for objects monitored by the PEM server.
The Database Server section displays memory usage trends for the selected server.
- The Server Memory Activity graph displays the previous week’s activity on the server; the Legend at the bottom of the graph provide a key to the colors used to chart information for each database. A vertical key on the left side of the graph indicates the actual block count for each value.
- The Server Memory Configuration pie chart displays the current memory usage (in megabytes):
- The blue portion of the chart represents the amount of memory dedicated to shared buffers.
- The red portion of the chart represents work memory.
- The yellow portion of the chart represents the amount of memory dedicated to write-ahead log buffers.
The Host section displays the free and used memory on the host system:
- The Host Memory Activity chart plots the free and used memory on the host system over the last week. The red line represents the amount of memory available (in megabytes), while the yellow line represents the total amount of memory on the selected server (in megabytes).
- Sections of the Host Memory Configuration pie chart represent the free and available memory on the host system when the last probe executed. The red section represents host memory used; the yellow section represents host memory available.