Just purely based on symbol search, I can see these different timer in the system: c01124ab t create_pit_timer c0158d7c T posix_cpu_timer_create c0158e7d t process_cpu_timer_create c01569c9 T sys_timer_create c01575e8 W sys_timerfd_create c0158e67 t thread_cpu_timer_create a. what are the differences among these different timer? b. what are their individual purpose? c. since the hardware clock source is only a few possibility, what their individual hardware infrastructure based on? ie, all these have ONE single hardware clock source? WHY NOT? (resolution differences?) thanks for the sharing :-). -- Regards, Peter Teoh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ