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sys.sysperfinfo (Transact-SQL)

Applies To: SQL Server 2014, SQL Server 2016 Preview

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Contains a Microsoft SQL Server Database Engine representation of the internal performance counters that can be displayed through the Windows System Monitor.

Important note Important

This SQL Server 2000 system table is included as a view for backward compatibility. We recommend that you use the current SQL Server system views instead. To find the equivalent system view or views, see Mapping SQL Server 2000 System Tables to SQL Server 2005 System Views. This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.

Applies to: SQL Server (SQL Server 2008 through current version).

Column name

Data type




Performance object name, such as SQL Server: Lock Manager or SQL Server: Buffer Manager.



Name of the performance counter within the object, such as Page Requests or Locks Requested.



Named instance of the counter. For example, there are counters maintained for each type of lock, such as Table, Page, Key, and so on. The instance name distinguishes between similar counters.



Actual counter value. Frequently, this will be a level or monotonically increasing counter that counts occurrences of the instance event.



Type of counter as defined by the Windows performance architecture.

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