-void timer_msleep (int64_t ms);
-void timer_usleep (int64_t us);
-void timer_nsleep (int64_t ns);
+void timer_sleep (int64_t ticks);
+void timer_msleep (int64_t milliseconds);
+void timer_usleep (int64_t microseconds);
+void timer_nsleep (int64_t nanoseconds);
+
+void timer_print_stats (void);