taglinefilesource code
nsec1160kernel/sched.clong nsec = value->tv_nsec;
nsec1164kernel/sched.cnsec += 1000000000L / HZ - 1;
nsec1165kernel/sched.cnsec /= 1000000000L / HZ;
nsec1166kernel/sched.creturn HZ * sec + nsec;