sys.dm_os_performance_counters
Returns a row per performance counter maintained by the server. For information about each performance counter, see Using SQL Server Objects.
| Column name | Data type | Description | |
|---|---|---|---|
|
object_name |
nchar(128) |
Category to which this counter belongs. | |
|
counter_name |
nchar(128) |
Name of the counter. | |
|
instance_name |
nchar(128) |
Name of the specific instance of the counter. Often contains the database name. | |
|
cntr_value |
bigint |
Current value of the counter.
| |
|
cntr_type |
int |
Type of counter as defined by the Windows performance architecture. See WMI Performance Counter Types or your Windows Server documentation for more information on performance counter types. |
Note: If the installation instance of your SQL Server fails to display the performance counters of the Windows Operating System, use the following Transact-SQL query to confirm that performance counters have been disabled.
SELECT COUNT (*) FROM sys.dm_os_performance_counters
If the return value is 0 rows, the performance counters have been disabled. You should then look at the setup log and search for error 3409, "Reinstall sqlctr.ini for this instance, and ensure that the instance login account has correct registry permissions" This denotes that performance counters were not enabled. The errors immediately prior to the 3409 listing should indicate the root cause for the failure of performance counter enabling. For more information about setup log files, see How to: View SQL Server 2005 Setup Log Files
