Linux time management componentstime_init()timer_interrupt()do_timer()struct timespec xtimecalc_load()profile_tickset_rtc_mmssupdate_process_times()Delaying executionDynamic timer github.comhttps://github.com/torvalds/linux/blob/ffc253263a1375a65fa6c9f62a893e9767fbebfa/kernel/time/timekeeping.c#L2289