Go's encoding/binary performance

gistfile1.go

package main

import (
	"bytes"
	"encoding/binary"
	"math"
	"testing"
)

func BenchmarkEncodeFloat1(b *testing.B) {
	var buf bytes.Buffer
	f := float32(math.MaxFloat32)
	for n := 0; n < b.N; n++ {
		binary.Write(&buf, binary.BigEndian, f)
	}
	// Use buf.Bytes()
}

func BenchmarkEncodeFloat2(b *testing.B) {
	buf := make([]byte, 4)
	f := float32(math.MaxFloat32)
	for n := 0; n < b.N; n++ {
		binary.BigEndian.PutUint32(buf, math.Float32bits(f))
	}
	// Use buf directly
}