如何记录测试时间

Question

我写了两个函数，现在我很想知道，哪个更快。我怎样才能找出它，哪个更快？

我如何通过测试找出哪个更快？去提供一个计时器吗？

Answer 1

您可以为每个函数编写一个基准测试。// from source_test.gofunc BenchmarkFunction1(b *testing.B) {&nbsp; &nbsp; &nbsp; &nbsp; // run the Function1 function b.N times&nbsp; &nbsp; &nbsp; &nbsp; for n := 0; n < b.N; n++ {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Function1(10)&nbsp; &nbsp; &nbsp; &nbsp; }}重复Function2并检查结果go test -bench=.