Calculations for Raw Counter Data (Windows Embedded CE 6.0)

1/5/2010

To obtain information from a counter, you might need to convert the raw data generated by the counter into data that is more easily interpreted.

Remote Performance Monitor supports the following PERF types as counters, including calculations that can be used to convert raw data:

Counter	Description
PERF_100NSEC_MULTI_TIMER	Performs timer sampling of multiple but similar items on a 100Nsec interval.
PERF_100NSEC_MULTI_TIMER_INV	Calculates the inverse of the timer for multiple but similar items on a 100Nsec interval.
PERF_100NSEC_TIMER	Performs timer sampling of a single object on a 100Nsec interval.
PERF_100NSEC_TIMER_INV	Calculates the inverse of the timer for single objects on a 100Nsec interval.
PERF_AVERAGE_BULK	Gives the bytes per operation when divided by the number of operations.
PERF_AVERAGE_TIMER	Gives time per operation when divided by the number of operations.
PERF_COUNTER_BULK_COUNT	Shows the byte transmission rates.
PERF_COUNTER_COUNTER	Tracks the rate of counts.
PERF_COUNTER_LARGE_RAWCOUNT	Gives instantaneous counter values for large values.
PERF_COUNTER_LARGE_RAWCOUNT_HEX	Gives instantaneous counter values in hexadecimal values for large values.
PERF_COUNTER_MULTI_TIMER	Performs timer sampling of multiple but similar items on a specified interval.
PERF_COUNTER_MULTI_TIMER_INV	Calculates the inverse of the timer for multiple but similar items on a specified interval.
PERF_COUNTER_QUEUELEN_TYPE	Calculates the inverse of the timer for multiple but similar items using (X1-X0)/(Y1-Y0).
PERF_COUNTER_RAWCOUNT	Gives instantaneous counter values for specified values.
PERF_COUNTER_RAWCOUNT_HEX	Gives instantaneous counter values in hexadecimal values for specified values.
PERF_COUNTER_TIMER	Performs timer sampling of a single object on a specified interval.
PERF_COUNTER_TIMER_INV	Calculates the inverse of the timer for single objects on a specified interval.
PERF_ELAPSED_TIME	Subtracts the start time of the item being measured, from the snapshot time to yield the elapsed time.
PERF_RAW_FRACTION	Calculates the instantaneous value, divided by the base data.
PERF_SAMPLE_COUNTER	Provides a count that is either 1 or 0 for each sampling interrupt.
PERF_SAMPLE_FRACTION	Calculates a percentage value of the number of samples with value 1, when each sampling interrupt is either 1 or 0.

See Also

Concepts

Performance Monitor Extension DLL Authoring
Performance Counter Key