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SubjectRe: [GIT pull] ntp updates for 2.6.31

* Miroslav Lichvar <mlichvar@redhat.com> wrote:

> > > I'm not very familiar with the PPS API, is there something
> > > wrong with it?
> >
> > The PPS patches i've seen just export IRQ timestamps to
> > user-space.
> >
> > That is not very robust in my opinion when it comes to do time
> > approximations - to get quick, low-latency action and precise
> > measurements it's best to keep the critical path as short as
> > possible, and within a single source code repository: i.e.
> > within the kernel.
>
> That's what kernel PPS discipline does, it will be probably
> included later. Its performance is an order or two better than the
> PLL/FLL discipline.

Is there some kernel patch i can look at?

Ingo


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