[LinuxPPS] precision

[Rodolfo Giometti]

On Tue, Oct 30, 2007 at 03:55:48PM +0100, Udo van den Heuvel wrote:
> Hello,
> 
> About the recent reports of decreased precision:
> 
> How could we determine if these changes are related to LinuxPPS or are
> elsewhere in the kernel?
> If it's LinuxPPS: what could we improve?
> How could one optimize the kernel for optimal performance with LinuxPPS?

>From LinuxPPS point of view the PPS events are simply reported to the
userland, no computation are made on the PPS data.

On problem could derive from IRQ latency... but in any case I don't
see how we can improve it from LinuxPPS code.

Other suggestions?

Rodolfo

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