Replacing C

[Kurt Roeckx]

On Mon, Jan 09, 2017 at 08:22:42PM +0100, Achim Gratz wrote:
> Eric S. Raymond writes:
> > Good idea.  I'd do it something like this:
> >
> > 1. Every time we ship a packet, take timestamps at the beginning and end of the
> > critical region.
> 
> If it is possible to get the actual time the packet left, then that's
> the data to get the adjustment value from.  I'm not sure exactly how
> hardware timestamping is implemented in the kernel, but at least some of
> the interfaces should be able to read back the timestamp that was
> attached to the outgoing packet.

See: https://www.kernel.org/doc/Documentation/networking/timestamping.txt


Kurt