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https://github.com/maragudk/go-bench2csv

A small CLI to parse the output of go test -bench and output to CSV.
https://github.com/maragudk/go-bench2csv

Last synced: 2 months ago
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A small CLI to parse the output of go test -bench and output to CSV.

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# go-bench2csv

[![GoDoc](https://pkg.go.dev/badge/github.com/maragudk/go-bench2csv)](https://pkg.go.dev/github.com/maragudk/go-bench2csv)
[![Go](https://github.com/maragudk/go-bench2csv/actions/workflows/ci.yml/badge.svg)](https://github.com/maragudk/go-bench2csv/actions/workflows/ci.yml)

A small CLI to parse the output of `go test -bench` and output to CSV.

It passes the `go test` output verbatim on STDERR and the CSV output to STDOUT.

## Usage

![demo.gif](docs%2Fdemo.gif)

```shell
$ go install github.com/maragudk/go-bench2csv/cmd/bench2csv@latest
$ go test -cpu 1,2,4,8 -bench . | bench2csv >benchmark.csv
goos: darwin
goarch: arm64
pkg: github.com/maragudk/go-bench2csv
BenchmarkProcess/in_parallel_just_for_fun 4314 276820 ns/op
BenchmarkProcess/in_parallel_just_for_fun-2 8292 145504 ns/op
BenchmarkProcess/in_parallel_just_for_fun-4 15826 75832 ns/op
BenchmarkProcess/in_parallel_just_for_fun-8 19111 73122 ns/op
PASS
ok github.com/maragudk/go-bench2csv 7.324s
```

Also works with `go test -benchmem`:

```shell
$ go test -cpu 1,2,4,8 -bench . -benchmem | bench2csv -mem >benchmark.csv
goos: darwin
goarch: arm64
pkg: github.com/maragudk/go-bench2csv
BenchmarkProcess/in_parallel_just_for_fun 4106 292497 ns/op 53892 B/op 738 allocs/op
BenchmarkProcess/in_parallel_just_for_fun-2 7929 151227 ns/op 53897 B/op 738 allocs/op
BenchmarkProcess/in_parallel_just_for_fun-4 15013 79910 ns/op 53909 B/op 738 allocs/op
BenchmarkProcess/in_parallel_just_for_fun-8 18214 66196 ns/op 53941 B/op 738 allocs/op
PASS
ok github.com/maragudk/go-bench2csv 7.402s
```

Made in 🇩🇰 by [maragu](https://www.maragu.dk/), maker of [online Go courses](https://www.golang.dk/).