背景
很早之前，考虑单机执行能力，使用locust做过公司短信网关的压测工作，后来发现了一个golang版本的locust，性能是python版本的5到10倍以上，但是一直没有机会使用。
最近公司想做一个性能测试平台，技术选型要求和开发的语言一致，即golang，所以我想到了boomer，本文为boomer的使用记录。
环境安装
| 开发环境 | 安装 |
|---|---|
| Python 3.7 | 略 |
| locust 0.11.0 | pip install locustio |
| golang | 略 |
| boomer | go get github.com/myzhan/boomer |
注：最新版本的boomer兼容了goczmq，需要将locust升级到较高版本才能完成兼容。
脚本编写
master
这部分的代码不重要，只要能启动就行。
from locust import Locust, TaskSet, task
class MyTaskSet(TaskSet):
@task(20)
def hello(self):
pass
class Dummy(Locust):
task_set = MyTaskSet
slave节点（golang/boomer）
package main
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"time"
"github.com/myzhan/boomer"
)
func getDemo() {
start := time.Now()
resp, err := http.Get("http://httpbin.org/get?name=Detector")
if err != nil {
log.Println(err)
return
}
defer resp.Body.Close()
fmt.Println(resp.Status)
elapsed := time.Since(start)
if resp.Status == "200 OK" {
boomer.RecordSuccess("http", "sostreq", elapsed.Nanoseconds()/int64(time.Millisecond), int64(10))
} else {
boomer.RecordFailure("http", "sostreq", elapsed.Nanoseconds()/int64(time.Millisecond), "sostreq not equal")
}
}
func postDemo() {
start := time.Now()
info := make(map[string]interface{})
info["name"] = "Detector"
info["age"] = 15
info["loc"] = "深圳"
// 将map解析未[]byte类型
bytesData, _ := json.Marshal(info)
// 将解析之后的数据转为*Reader类型
reader := bytes.NewReader(bytesData)
resp, _ := http.Post("http://httpbin.org/post",
"application/json",
reader)
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(string(body))
elapsed := time.Since(start)
if resp.Status == "200 OK" {
boomer.RecordSuccess("http", "sostreq", elapsed.Nanoseconds()/int64(time.Millisecond), int64(10))
} else {
boomer.RecordFailure("http", "sostreq", elapsed.Nanoseconds()/int64(time.Millisecond), "sostreq not equal")
}
}
func main() {
task1 := &boomer.Task{
Name: "sostreq",
// The weight is used to distribute goroutines over multiple tasks.
Weight: 20,
Fn: getDemo,
}
task2 := &boomer.Task{
Name: "sostreq",
// The weight is used to distribute goroutines over multiple tasks.
Weight: 10,
Fn: postDemo,
}
boomer.Run(task1, task2)
}
实际效果如下：
问题
Failed to execute dot. Is Graphviz installed? Error: exec: "dot": executable file not found in $PATH