MySQL 5.5 / 5.6 / 5.7 - OLTP RW

Setup

Client (sysbench) and server are on different servers, connected via 10Gb network.
CPU: 56 logical CPU threads servers Intel(R) Xeon(R) CPU E5-2683 v3 @ 2.00GHz
sysbench 10 tables x 10mln rows, pareto distribution
OS: Ubuntu 15.10 (Wily Werewolf)
Kernel 4.2.0-30-generic

Results

Relative performance

base value: MySQL 5.7