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PERF_COUNTER_BULK_COUNT

Updated: March 28, 2003

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

 

Description

This counter type shows the average number of operations completed during each second of the sample interval. Counters of this type measure time in ticks of the system clock. The variable F represents the number of ticks per second. The value of F is factored into the equation so that the result is displayed in seconds. This counter type is the same as the PERF_COUNTER_COUNTER type, but it uses larger fields to accommodate larger values.

Generic type

Difference.

Formula

(N1 - N0) / ( (D1 - D0) / F, where the numerator (N) represents the number of operations performed during the last sample interval, the denominator (D) represent the number of ticks elapsed during the last sample interval, and the variable F is the frequency of the ticks.

Average

(Nx - N0) / ((Dx - D0)/ F)

Example

System\File Read Bytes/sec

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