PERF_PRECISION_TIMER
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
Description |
This counter type shows a value that consists of two counter values: the count of the elapsed time of the event being monitored, and the frequency from the system performance timer. This counter type differs from other counter timers in that the clock tick value accompanies the counter value, eliminating any possible difference due to latency from the function call. Precision counter types are used when standard system timers are not precise enough for accurate readings. |
Generic type |
Percentage. |
Formula |
Nx - N0 / D1 - D0, where the numerator (N) represents the counter value, and the denominator (D) represents the value of the system performance timer. |
Average |
Nx - N0 / D1 - D0 |
Example |
There are no counters of this type installed with the Windows Server 2003 family. |