[dpdk-users] What is the 'unit of timestamp' assigned to mbuf packet in DPDK?

[Stephen Hemminger]

On Fri, 22 Nov 2019 22:30:11 +0530
Gokul Bargaje <gokulbargaje.182009 at nitk.edu.in> wrote:

> Thank you for the clarification. But I am still unable to understand how
> exactly timestamp is calculated before assigning to a timestamp field.
> Could you please tell me the steps to calculate the timestamp in DPDK?
> 
> I have to implement the PIE AQM algorithm in DPDK and for that, I need to
> calculate the total time spent by the packet waiting in queue (i.e. the
> difference between enqueue time and dequeue time).

The use of timestamp field is very spotty.
Only mellanox implements it.