sys.dm_resource_governor_external_resource_pools (Transact-SQL)

Applies to: SQL Server 2016 (13.x) and later versions

Returns information about the current external resource pool state, the current configuration of resource pools, and resource pool statistics.

Transact-SQL syntax conventions

Column name	Data type	Description
external_pool_id	int	The ID of the resource pool. Is not nullable.
name	sysname	The name of the resource pool. Is not nullable.
pool_version	int	Internal version number.
max_cpu_percent	int	The current configuration for the maximum average CPU bandwidth allowed for all requests in the resource pool when there is CPU contention. Is not nullable.
max_processes	int	Maximum number of concurrent external processes. The default value, 0, specifies no limit. Is not nullable.
max_memory_percent	int	The current configuration for the percentage of total server memory that can be used by requests in this resource pool. Is not nullable.
statistics_start_time	datetime	The time when statistics was reset for this pool. Is not nullable.
peak_memory_kb	bigint	The maximum amount of memory used, in kilobytes, for the resource pool. Is not nullable.
write_io_count	int	The total write IOs issued since the Resource Governor statistics were reset. Is not nullable.
read_io_count	int	The total read IOs issued since the Resource Governor statistics were reset. Is not nullable.
total_cpu_kernel_ms	bigint	The cumulative CPU user kernel time in milliseconds since the Resource Governor statistics were reset. Is not nullable.
total_cpu_user_ms	bigint	The cumulative CPU user time in milliseconds since the Resource Governor statistics were reset. Is not nullable.
active_processes_count	int	The number of external processes running at the moment of the request. Is not nullable.

Permissions

Requires VIEW SERVER STATE permission.

Permissions for SQL Server 2022 and later

Requires VIEW SERVER PERFORMANCE STATE permission on the server.

See Also

sys.dm_resource_governor_external_resource_pool_affinity (Transact-SQL)