jupj

$ go test -bench=. data-oriented-design-benchmarks-2_test.go
                                              Iterations          Time                  Memory throughput       Data processed
BenchmarkValueTypes/array-of-structs-4               121           9906752 ns/op        10497.89 MB/s            99.18 MB/op
BenchmarkValueTypes/struct-of-arrays-4               588           1974807 ns/op          586.80 MB/s            1.105 MB/op
BenchmarkRefTypes/array-of-references-4              127           9240654 ns/op        12120.35 MB/s            106.8 MB/op
BenchmarkRefTypes/struct-of-ref-arrays-4             123           9478477 ns/op          974.58 MB/s            8.810 MB/op

jupj

$ go test -bench=UnconfirmedEmail data-oriented-design-benchmarks_test.go 
                                              Iterations          Time                  Memory throughput       Data processed
BenchmarkUnconfirmedEmail/baseline-4                 100          10673319 ns/op        9743.92 MB/s            99.18 MB/op
BenchmarkUnconfirmedEmail/data-oriented-4            582           2255190 ns/op         515.10 MB/s             1.108 MB/op