PerformanceCounterType Enum

Definition

Namespace:

System.Diagnostics

Assembly:

System.Diagnostics.PerformanceCounter.dll

Specifies performance counter types that map directly to native types.

public enum class PerformanceCounterType

public enum PerformanceCounterType

type PerformanceCounterType = 

Public Enum PerformanceCounterType

Inheritance

Object

ValueType

Enum

PerformanceCounterType

Fields

Name	Value	Description
NumberOfItemsHEX32	0	An instantaneous counter that shows the most recently observed value in hexadecimal format. Used, for example, to maintain a simple count of items or operations.
NumberOfItemsHEX64	256	An instantaneous counter that shows the most recently observed value. Used, for example, to maintain a simple count of a very large number of items or operations. It is the same as NumberOfItemsHEX32 except that it uses larger fields to accommodate larger values.
NumberOfItems32	65536	An instantaneous counter that shows the most recently observed value. Used, for example, to maintain a simple count of items or operations. Counters of this type include Memory\Available Bytes.
NumberOfItems64	65792	An instantaneous counter that shows the most recently observed value. Used, for example, to maintain a simple count of a very large number of items or operations. It is the same as NumberOfItems32 except that it uses larger fields to accommodate larger values.
CounterDelta32	4195328	A difference counter that shows the change in the measured attribute between the two most recent sample intervals.
CounterDelta64	4195584	A difference counter that shows the change in the measured attribute between the two most recent sample intervals. It is the same as the CounterDelta32 counter type except that is uses larger fields to accommodate larger values.
SampleCounter	4260864	An average counter that shows the average number of operations completed in one second. When a counter of this type samples the data, each sampling interrupt returns one or zero. The counter data is the number of ones that were sampled. It measures time in units of ticks of the system performance timer.
CountPerTimeInterval32	4523008	An average counter designed to monitor the average length of a queue to a resource over time. It shows the difference between the queue lengths observed during the last two sample intervals divided by the duration of the interval. This type of counter is typically used to track the number of items that are queued or waiting.
CountPerTimeInterval64	4523264	An average counter that 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 CountPerTimeInterval32 except that it uses larger fields to accommodate larger values. This type of counter is typically used to track a high-volume or very large number of items that are queued or waiting.
RateOfCountsPerSecond32	272696320	A difference counter that 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. Counters of this type include System\ File Read Operations/sec.
RateOfCountsPerSecond64	272696576	A difference counter that 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. This counter type is the same as the RateOfCountsPerSecond32 type, but it uses larger fields to accommodate larger values to track a high-volume number of items or operations per second, such as a byte-transmission rate. Counters of this type include System\ File Read Bytes/sec.
RawFraction	537003008	An instantaneous percentage counter that shows the ratio of a subset to its set as a percentage. For example, it compares the number of bytes in use on a disk to the total number of bytes on the disk. Counters of this type display the current percentage only, not an average over time. Counters of this type include Paging File\% Usage Peak.
CounterTimer	541132032	A percentage counter that shows the average time that a component is active as a percentage of the total sample time.
Timer100Ns	542180608	A percentage counter that shows the active time of a component as a percentage of the total elapsed time of the sample interval. It measures time in units of 100 nanoseconds (ns). Counters of this type are designed to measure the activity of one component at a time. Counters of this type include Processor\% User Time.
SampleFraction	549585920	A percentage counter that shows the average ratio of hits to all operations during the last two sample intervals. Counters of this type include Cache\Pin Read Hits %.
CounterTimerInverse	557909248	A percentage counter that displays the average percentage of active time observed during sample interval. The value of these counters is calculated by monitoring the percentage of time that the service was inactive and then subtracting that value from 100 percent. This is an inverse counter type. It measures time in units of ticks of the system performance timer.
Timer100NsInverse	558957824	A percentage counter that shows the average percentage of active time observed during the sample interval. This is an inverse counter. Counters of this type include Processor\% Processor Time.
CounterMultiTimer	574686464	A percentage counter that displays the active time of one or more components as a percentage of the total time of the sample interval. Because the numerator records the active time of components operating simultaneously, the resulting percentage can exceed 100 percent. This counter type differs from CounterMultiTimer100Ns in that it measures time in units of ticks of the system performance timer, rather than in 100 nanosecond units. This counter type is a multitimer.
CounterMultiTimer100Ns	575735040	A percentage counter that shows the active time of one or more components as a percentage of the total time of the sample interval. It measures time in 100 nanosecond (ns) units. This counter type is a multitimer.
CounterMultiTimerInverse	591463680	A percentage counter that shows the active time of one or more components as a percentage of the total time of the sample interval. It derives the active time by measuring the time that the components were not active and subtracting the result from 100 percent by the number of objects monitored. This counter type is an inverse multitimer. It differs from CounterMultiTimer100NsInverse in that it measures time in units of ticks of the system performance timer, rather than in 100 nanosecond units.
CounterMultiTimer100NsInverse	592512256	A percentage counter that shows the active time of one or more components as a percentage of the total time of the sample interval. Counters of this type measure time in 100 nanosecond (ns) units. They derive the active time by measuring the time that the components were not active and subtracting the result from multiplying 100 percent by the number of objects monitored. This counter type is an inverse multitimer.
AverageTimer32	805438464	An average counter that measures the time it takes, on average, to complete a process or operation. Counters of this type display a ratio of the total elapsed time of the sample interval to the number of processes or operations completed during that time. This counter type measures time in ticks of the system clock. Counters of this type include PhysicalDisk\ Avg. Disk sec/Transfer.
ElapsedTime	807666944	A difference timer that shows the total time between when the component or process started and the time when this value is calculated. Counters of this type include System\ System Up Time.
AverageCount64	1073874176	An average counter that shows how many items are processed, on average, during an operation. Counters of this type display a ratio of the items processed to the number of operations completed. The ratio is calculated by comparing the number of items processed during the last interval to the number of operations completed during the last interval. Counters of this type include PhysicalDisk\ Avg. Disk Bytes/Transfer.
SampleBase	1073939457	A base counter that stores the number of sampling interrupts taken and is used as a denominator in the sampling fraction. The sampling fraction is the number of samples that were 1 (or true) for a sample interrupt. Check that this value is greater than zero before using it as the denominator in a calculation of SampleFraction.
AverageBase	1073939458	A base counter that is used in the calculation of time or count averages, such as AverageTimer32 and AverageCount64. Stores the denominator for calculating a counter to present "time per operation" or "count per operation".
RawBase	1073939459	A base counter that stores the denominator of a counter that presents a general arithmetic fraction. Check that this value is greater than zero before using it as the denominator in a RawFraction value calculation.
CounterMultiBase	1107494144	A base counter that indicates the number of items sampled. It is used as the denominator in the calculations to get an average among the items sampled when taking timings of multiple, but similar items. Used with CounterMultiTimer, CounterMultiTimerInverse, CounterMultiTimer100Ns, and CounterMultiTimer100NsInverse.

Remarks

For more information about this API, see Supplemental API remarks for PerformanceCounterType.

See also

• PerformanceCounter