$ go test -bench ^BenchmarkMergeSort$ mergesort/test
goos: linux
goarch: amd64
pkg: mergesort/test
cpu: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz
BenchmarkMergeSort/synchronous_tested_on_array_of_size_1000000-12 4 278863082 ns/op
BenchmarkMergeSort/channels_tested_on_array_of_size_1000000-12 2 647550513 ns/op
BenchmarkMergeSort/waitgroups_tested_on_array_of_size_1000000-12 2 527465514 ns/op
BenchmarkMergeSort/sem_channels_2_tested_on_array_of_size_1000000-12 2 503141063 ns/op
BenchmarkMergeSort/sem_channels_4_tested_on_array_of_size_1000000-12 2 529184726 ns/op
BenchmarkMergeSort/sem_channels_6_tested_on_array_of_size_1000000-12 2 537195784 ns/op
BenchmarkMergeSort/sem_channels_8_tested_on_array_of_size_1000000-12 2 528916088 ns/op
BenchmarkMergeSort/sem_channels_10_tested_on_array_of_size_1000000-12 2 524825271 ns/op
BenchmarkMergeSort/sem_channels_12_tested_on_array_of_size_1000000-12 2 508332486 ns/op
BenchmarkMergeSort/sem_channels_24_tested_on_array_of_size_1000000-12 2 524019418 ns/op
BenchmarkMergeSort/sem_channels_100_tested_on_array_of_size_1000000-12 2 549371054 ns/op
BenchmarkMergeSort/sem_channels_1000_tested_on_array_of_size_1000000-12 2 524972001 ns/op
BenchmarkMergeSort/sem_channels_10000_tested_on_array_of_size_1000000-12 2 537632214 ns/op
BenchmarkMergeSort/sem_channels_100000_tested_on_array_of_size_1000000-12 2 888260726 ns/op
BenchmarkMergeSort/sem_waitgroups_2_tested_on_array_of_size_1000000-12 4 261331455 ns/op
BenchmarkMergeSort/sem_waitgroups_4_tested_on_array_of_size_1000000-12 5 248030619 ns/op
BenchmarkMergeSort/sem_waitgroups_6_tested_on_array_of_size_1000000-12 5 227603361 ns/op
BenchmarkMergeSort/sem_waitgroups_8_tested_on_array_of_size_1000000-12 5 217228761 ns/op
BenchmarkMergeSort/sem_waitgroups_10_tested_on_array_of_size_1000000-12 5 221135752 ns/op
BenchmarkMergeSort/sem_waitgroups_12_tested_on_array_of_size_1000000-12 6 220947591 ns/op
BenchmarkMergeSort/sem_waitgroups_24_tested_on_array_of_size_1000000-12 6 218261241 ns/op
BenchmarkMergeSort/sem_waitgroups_100_tested_on_array_of_size_1000000-12 6 195841480 ns/op
BenchmarkMergeSort/sem_waitgroups_1000_tested_on_array_of_size_1000000-12 6 194972410 ns/op
BenchmarkMergeSort/sem_waitgroups_10000_tested_on_array_of_size_1000000-12 4 334979194 ns/op
BenchmarkMergeSort/sem_waitgroups_100000_tested_on_array_of_size_1000000-12 2 875434906 ns/op
PASS
ok mergesort/test 49.712s```