TICKS_2_MSEC
time_since_last_cleanup = TICKS_2_MSEC(ticks -
if (TICKS_2_MSEC(ticks - rl_sysctl_ticks) < 500) {
if (TICKS_2_MSEC(ticks - sc->rebuild_ticks) < 100) {
TICKS_2_MSEC(TP_SETBELLPD_DURATION(arg)) * SBT_1MS;
#define ticks_to_msecs(t) TICKS_2_MSEC(t)