On May 15, 9:28 pm, "David L. Mills" <[EMAIL PROTECTED]> wrote: > > A timer interrupt is required each second to update the clock frequency > no matter what. In addition, a sweep is made through the associations to > see if a poll is pending. It would be in principle posssible to > implement a system of queues to avopid sweeping the associations each > second, but that would save very few cycles, add some more cycles and > additional complexity.
NTP could set a reminder for itself not for the next second, in case there's a poll pending, but for the minimum period left among all polled servers. This would be pretty simple and power-friendly. Mind you, a CPU uses orders of magnitude less power in a stand-by state, even a simple halt-instruction, than running. See page 3 of http://download.intel.com/technology/itj/2006/volume10issue02/vol10_art03.pdf for more info. HTH _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
