Example Go frequency measurement

t.go

package main

import "bytes"
import "time"
import "fmt"


func ClusterSlot(key []byte) uint16 {
	if start := bytes.IndexByte(key, '{'); start >= 0 {
		if end := bytes.IndexByte(key[start+1:], '}'); end > 0 {
			key = key[start+1 : start+1+end]
		}
	}
	return 0
}

func didier_freq()


func didier_count( n int ) int {

   x :=  n

for i:=0; i< 1<<32 ; i++ {
   x += i
}  

  return x
}


func main() {

  //ClusterSlot(nil)
  //_ = didier_count(1000)
  Add(1<<34)  
  t := time.Now()
  Add(1<<34)
  t2 := time.Now()
  dur := t2.Sub(t).Seconds()
 
  fmt.Println(float64(1<<34) / dur / 1.0e9)

}

x.go

// +build ignore

package main

import (
 . "github.com/mmcloughlin/avo/build"
	. "github.com/mmcloughlin/avo/operand"
//	. "github.com/mmcloughlin/avo/reg"
)

func main() {
	TEXT("Add", NOSPLIT, "func(n int64) int")
	x := Load(Param("n"), GP64())
        Label("loop")
        for i:=0; i<4; i++ {
           SUBQ(U8(1),x)
        }
        JNE(LabelRef("loop"))
	Store(x, ReturnIndex(0))
	RET()
	Generate()
}