Add throughput data to the result tables

[a-bronx]

Would be nice to have a calculated effectiveness (speed / payload size) for each test result. This metric seems to be more important than just raw ops/sec or data size, because response time measured on the client side is affected by a combination of both the speed of processing and the packet size (probably after gzip for text serializers, to be closer to real-world scenarios).

[itadapter]

good point, problem: I am swamped :) can you help out?