[ntp:questions] Power-saving patch to NTP

Jan Ceuleers janspam.ceuleers at skynet.be
Fri May 16 06:03:49 UTC 2008


Bill,

Bill Unruh wrote:
> Now of course I suspect that the kernel has to wake itself even more often
> than once a second (eg the timer interrupt) and if it did not, the effect
> on the time discipline would be pretty bad. 

The Linux kernel has recently gone tickless, meaning that it only 
schedules a wakeup for itself at the first time that it knows a timer 
will expire. A quick intro on that can be found here:

http://www.lesswatts.org/documentation/silicon-power-mgmnt/#ticklessidle

Cheers, Jan




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