function::cpu_clock_ns
名称
function::cpu_clock_ns — Number of nanoseconds on the given cpu's clock
Synopsis
cpu_clock_ns:long(cpu:long)
Arguments
cpu- Which processor's clock to read
Description
This function returns the number of nanoseconds on the given cpu's clock. This is always monotonic comparing on the same cpu, but may have some drift between cpus (within about a jiffy).
