High Resolution Timing
The high resolution timer feature provides access to a fine-grained counter source for applications. This counter is used for functions such as fine-grained ordering of events in a node, measurements of short segments of code and fault-detection mechanisms between nodes.
The high resolution timer has a resolution better than or equal to one microsecond, and does not roll over more than once per day.
High Resolution Timer API
The high resolution timer API is summarized in the following table:
|
Function |
Description |
|---|---|
|
hrTimerValue() |
Get the current value of the fine-grained timer in ticks |
|
hrTimerFrequency() |
Get the frequency of the fine-grained timer in Hertz |
|
hrTimerPeriod() |
Get the difference between the minimum and the maximum of the possible values of the fine-grained timer in ticks |
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