Locust性能压测工具-支持分布式压测【多测师】
为什么用locust做压测??
1.因为locust可以完美兼容python
2.locust采用的是协程,LoadRunner 和 Jmeter 这类采用进程和线程的测试工具,都很难在单机上模拟出较高的并发压力。
Locust 的并发机制摒弃了进程和线程,采用协程(gevent)的机制。协程避免了系统级资源调度,由此可以大幅提高单机的并发能力
3.设置集合点需要自己写代码控制
4.并发数量多的情况下要用分布式,locust完美支持分布式还有无界面形式设置master主节点和slave子节点。
5.使用Locust进行性能测试时,当一台单机不足以模拟所需的用户数量的时候,可以在多台机器上分布式的执行性能测试
缺点:没有像jmeter可以设置并发数量的概念,locust只要启动会一直不断的发送请求。
代码: #coding=utf-8 import requests from locust import HttpLocust,TaskSet,task,seq_task import os from locust import events from gevent._semaphore import Semaphore all_locusts_spawned = Semaphore() all_locusts_spawned.acquire() def on_hatch_complete(**kwargs): all_locusts_spawned.release() #创建钩子方法 events.hatch_complete += on_hatch_complete #挂载到locust钩子函数(所有的Locust实例产生完成时触发) class Cms(TaskSet): # 访问cms后台首页 @seq_task(1) def cms_login(self): # 定义请求头 header = { "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36" } req = self.client.get("/cms/manage/loginJump.do?userAccount=admin&loginPwd=123456", headers=header, verify=False) if req.status_code == 200: print("success") else: print("fails") @seq_task(2) def cms_queryUserList(self): header = { "User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36" } queryUserList_data = { "startCreateDate": "", "endCreateDate": "", "searchValue": "", "page": "1" } req = self.client.post("/cms/manage/queryUserList.do",data=queryUserList_data) queryUserList_url = 'http://192.168.23.132:8080/cms/manage/queryUserList.do' if req.status_code == 200: #u'查询用户成功!') print("success") else: print("fails") def on_start(self): """ on_start is called when a Locust start before any task is scheduled """ # self.cms_login() # self.cms_queryUserList() all_locusts_spawned.wait() #限制在所有用户准备完成前处于等待状态 class websitUser(HttpLocust): task_set = Cms min_wait = 1000 # 单位为毫秒 max_wait = 1000 # 单位为毫秒 if __name__ == "__main__": import os os.system("locust -f lesson8.py --host=http://192.168.23.134:8080") ''' semaphore是一个内置的计数器: 每当调用acquire()时,内置计数器-1 每当调用release()时,内置计数器+1 计数器不能小于0,当计数器为0时,acquire()将阻塞线程直到其他线程调用release() '''
其他参考资料介绍:
https://blog.csdn.net/JOJOY_tester/article/details/77926470
https://blog.csdn.net/sg619262284/article/details/81074278
http://www.testclass.net/locust --locust详细介绍
https://cloud.tencent.com/developer/article/1506602
https://www.cnblogs.com/shenh/p/12462796.html
https://testerhome.com/topics/17068 --wrk ab jmeter locust性能压测工具对比