I've built some RPMs for CentOS using the latest SRC from the FC9 branch.
They include that patch and I've noticed no discernable difference in time
keeping and everything appears to be functioning as it should.

Jason


> I came across the following page:
>
> http://www.lesswatts.org/projects/powertop/known.php
>
> which says the following on ntpd:
>
> "By default, the ntp time synchronization daemon will wake up once per
> second, and will make the kernel do work on it's behalf even more. Red
> Hat has created a patch to ntp to fix this issue and ships it in their
> rawhide and FC7 ntp packages. You can download this patch from the
> Fedora cvs server."
>
> Has anyone here looked at that patch? Does it compromise correctness of
> the algorithms?
>
> Thanks, Jan