PostgreSQL supported metrics

Hardware metrics:

Metrics	Description
Type of OS	Type of OS on which DB is running (Linux/Windows etc.)
Architecture	The OS architecture.
Host name	Configured host name on which DB is present
Availability	Active/Inactive [The database availability]
Average CPU usage	Average CPU usage of the machine
Average memory usage	Average memory usage of the machine
Disk usage	Disk usage on the configured host
CPU usage	CPU usage on the configured host
Memory usage	Memory usage on the configured host
Network I/O	I/O megabytes per second
Connections & sessions	Number of connections per minute

Query Performance:

Metrics	Description
Query	List of slow queries performed/available
Total Execution	Count of executions of each slow queries performed/available
Execution Time	Total execution time of each collected query
Timestamp	Last timestamp of each collected query

Connections:

Metrics	Description
Number of connections	Number of connections made for the database
Number of sessions	Number of session established for the database
Session details	User/Query list for established session

Metrics:

Metrics	Description
Bulk operations	Number of bulk operations per minute
Confis operations	Number of confis operations per minute
Tup operations	Number of Tup operations per minute
Xact operations	Number of Xact operations per minute

Note: Disk usage shows in GB and other metrics will be available in MB.