Performance monitor constants describe Windows NT Performance Monitor polling behavior. The Windows NT Performance Monitor can poll continuously or poll when directed by the user.
The polling behavior of the Windows NT Performance Monitor can be changed after the application has started successfully.
| Constant | Value | Description |
|---|---|---|
| SQLDMOPerfmon_Continuous | 0 | Configures Windows NT Performance Monitor statistics polling by using the operating system default time slice |
| SQLDMOPerfmon_MaxSet | 1 | SQLDMOPerfmon_ OnDemand |
| SQLDMOPerfmon_MinSet | 0 | SQLDMOPermon_ Continuous |
| SQLDMOPerfmon_None | 1000 | Invalid value |
| SQLDMOPerfmon_OnDemand | 1 | Windows NT performance monitor polls for statistics when directed to do so by the user |