Memory profiling benchmark style, for Ruby 2.1

Memory profiling benchmark style, for Ruby 2.1 . Contribute to michaelherold/benchmark-memory development by creating an account on GitHub.benchmark-memory is a tool that helps you to benchmark the memory usage of different pieces of code. It leverages the power of memory_profiler to give you a metric of the total amount of memory allocated and retained by a block, as well as the number of objects and strings allocated and retained.