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PERF_COUNTER_LARGE_QUEUELEN_TYPE

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 monitors the average length of a queue to a resource over time. Counters of this type display the difference between the queue lengths observed during the last two sample intervals, divided by the duration of the interval. This counter type is the same as the PERF_COUNTER_QUEUELEN_TYPE counter type, except that it uses larger fields to accommodate larger values.

Generic type

Average.

Formula

(N1 - N0) / (D1 - D0), where the numerator (N) represents the number of items in a queue, and the denominator (D) represents the time elapsed during the sample interval.

Average

(Nx - N0) / (Dx - D0)

Example

PhysicalDisk\ Avg. Disk Queue Length

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