New article on s/w performance

[izard]

I recently published a new article on NFV performance at Intel web page. I think all stuff I wrote is trivial, but nevertheless it made it to my todo list this summer.

The last chapter on TSX was heavily edited by Roman Dementiev, the best TSX expert I know.

Another cool thing about the article are links at the bottom. E.g. a video on how to set up prox in Vritual machine - cool stuff for quick and easy dataplane performance modeling.