Benchmarks

Lesson in the Go Roadmap · Stage 32: Building CLIs

Last updated 14 September 2026

What is Benchmarks?

Benchmarks measure code performance by timing repeated executions. Functions start with Benchmark and use *testing.B parameter. Run with go test -bench=. to identify bottlenecks, compare implementations, and track performance changes over time.

Study this in the interactive course See the whole Go roadmap

Free resources to learn Benchmarks

Official docsAdd a Test
ArticleBenchmarking in Go: A Comprehensive Handbook
ArticleBenchmarking in Golang: Improving Function Performance

Benchmarks: common questions

Can I learn Benchmarks in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Benchmarks in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Benchmarks tutorial for beginners?

It is lesson 125 of 172 in the free Go roadmap, in stage 32, Building CLIs. If you are new to Go, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.