[LinuxPPS] precision

[Udo van den Heuvel]

Rodolfo Giometti wrote:

>> If that is correct, we cannot change anything much?
> 
> Currently the pps_event() records the timestamp as soon as it is
> called by the IRQ handler...
> 
> I don't see any chances how we can improve it.

OK, so how could we tune/configure the kernel to get maximum performance?
Do we need highres clocks for precision?
TSC? HPET?
How many HZ in the kernel?
(not HZ-less?)
Etc

Udo