NAME

       function::cpu_clock_us - Number of microseconds on the given cpu's clock

SYNOPSIS

           cpu_clock_us:long(cpu:long)

ARGUMENTS

       cpu
           Which processor's clock to read

DESCRIPTION

       This function returns the number of microseconds 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).