On Tue, Apr 19, 2011 at 6:03 AM, unruh <un...@wormhole.physics.ubc.ca> wrote: > What is worse is that modern cpus in order to conserver energy keep > changing their rate, which makes them really difficult to use as a good > rate.
At least that behavior can usually be configured away by instructing the system to run at a fixed rate regardless of load. Much more pernicious are systems which use spread-spectrum CPU clocking to dodge RF emissions limits. This loophole (intentional idiocy by complicit regulators) is often not configurable at all, and can result in 1000 PPM or more of local clock wander. Beware ntpd on newer laptops... Cheers, Dave Hart _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions