Go has support for testing the performance of your code.
Basic Benchmarking
Sub Benchmarks
Validate Benchmarks
Prediction
Caching
False Sharing
Look at the profiling topic to learn more about using benchmarks to profile code.
How to write benchmarks in Go - Dave Cheney
Profiling & Optimizing in Go - Brad Fitzpatrick
Benchstat computes and compares statistics about benchmarks
Advanced Testing Concepts for Go 1.7 - Marcel van Lohuizen
Write three benchmark tests for converting an integer into a string. First use the fmt.Sprintf function, then the strconv.FormatInt function and finally the strconv.Itoa. Identify which function performs the best.
Template (Go Playground) | Answer (Go Playground)
All material is licensed under the Apache License Version 2.0, January 2004.