How to measure arduino network performance

I posted about measuring network performance with Arduino uno & Ethernet shield on Instructable site.

I want to know a network performance data of Aruidno to check a bandwidth budget for new IoT Project.

And, I discoverd Arduino site, google and so on to get a data.

But there was no cool, nice answer for me.

So... I measured it myself with my means.

I want to get checked by you about it is logical or not.

http://www.instructables.com/id/How-to-measure-Arduino-network-performance/

Thank you.