Re: [GIT pull] ntp updates for 2.6.31

[Ingo Molnar]

* Miroslav Lichvar <mlichvar@xxxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/