elapsed_nanoseconds()

int64 xtd::diagnostics::stopwatch::elapsed_nanoseconds ( ) const

noexcept

Gets the total elapsed time measured by the current instance, in nanoseconds.

Returns

A long integer representing the total number of nanoseconds measured by the current instance.

Remarks

This property represents the number of elapsed nanoseconds in the underlying timer mechanism. A nanosecond is the smallest unit of time that the stopwatch timer can measure. Use the Frequency field to convert the ElapsedTicks value into a number of seconds.

You can query the properties xtd::diagnostics::stopwatch::elapsed, xtd::diagnostics::stopwatch::elapsed_milliseconds, xtd::diagnostics::stopwatch::elapsed_ticks, and xtd::diagnostics::stopwatch::elapsed_nanoseconds while the xtd::diagnostics::stopwatch instance is running or stopped. The elapsed time properties steadily increase while the xtd::diagnostics::stopwatch is running; they remain constant when the instance is stopped.

By default, the elapsed time value of a xtd::diagnostics::stopwatch instance equals the total of all measured time intervals. Each call to start begins counting at the cumulative elapsed time; each call to xtd::diagnostics::stopwatch::stop ends the current interval measurement and freezes the cumulative elapsed time value. Use the xtd::diagnostics::stopwatch::reset method to clear the cumulative elapsed time in an existing xtd::diagnostics::stopwatch instance.