How do you run benchmark tests in Go?

You run benchmark tests in Go using the go test -bench command. For example, go test -bench . runs all benchmark functions in your test files. The -bench flag allows you to specify patterns to match benchmark functions. Benchmark tests do not run automatically with regular tests; you need to explicitly specify the -bench flag to execute them. The results will show the number of iterations performed per second and the time taken for each iteration, providing valuable insights into code performance.