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Go Benchmarking Guide

Verified

by Community

Covers Go benchmarking using the testing package including writing benchmark functions, interpreting results, using benchstat for comparison, profiling with pprof, and avoiding common benchmarking pitfalls.

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Go Benchmarking Guide

Write accurate Go benchmarks and interpret results for meaningful performance optimization.

Usage

Share code you want to benchmark or ask about benchmarking techniques for guidance.

Examples

  • "Write a benchmark comparing two sorting implementations"
  • "How do I use benchstat to compare benchmark results?"
  • "My benchmark results seem inconsistent — what's wrong?"

Guidelines

  • Show proper benchmark function structure with b.N
  • Cover sub-benchmarks for comparing multiple approaches
  • Include benchstat for statistical comparison
  • Explain compiler optimization pitfalls in benchmarks
  • Show how to combine benchmarks with pprof profiling

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