A simple evaluation of iterators in Go.


Run like this:

go test -bench .


Example output:

goos: linux
goarch: amd64
pkg: github.com/ewencp/golang-iterators-benchmark
cpu: Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz
BenchmarkIntsCallbackIterator-4                      781           1529502 ns/op
BenchmarkDataCallbackIterator-4                      678           1689796 ns/op
BenchmarkIntsChannelIterator-4                         7         174408324 ns/op
BenchmarkDataChannelIterator-4                         6         169017611 ns/op
BenchmarkIntsBufferedChannelIterator-4                22          54457515 ns/op
BenchmarkDataBufferedChannelIterator-4                22          53085977 ns/op
BenchmarkIntsClosureIterator-4                       582           2057531 ns/op
BenchmarkDataClosureIterator-4                       483           2466948 ns/op
BenchmarkIntStatefulIterator-4                       870           1351186 ns/op
BenchmarkDataStatefulIterator-4                      674           1814788 ns/op
BenchmarkIntStatefulIteratorInterface-4              468           2518338 ns/op
BenchmarkDataStatefulIteratorInterface-4             342           3512174 ns/op
PASS
ok      github.com/ewencp/golang-iterators-benchmark    17.764s