Benchmarks

BenchmarkPutNormal-12                            6079029               187.4 ns/op
BenchmarkGetChannels-12                          1295262               899.5 ns/op
BenchmarkGetMutex-12                            82287927                14.54 ns/op
BenchmarkGetNormal-12                           83162497                14.61 ns/op
BenchmarkGetChannelsWhileConcurrentPut-12         561452              2159 ns/op
BenchmarkGetMutexWhileConcurrentPut-12          29682649                40.60 ns/op
BenchmarkGetNormalWhileConcurrentPut-12         28304220                42.37 ns/op