一、背景
Locust 是性能测试工具，但是默认只支持http协议，就是默认只有http的client，需要其他协议的测试必须自己扩展对于的client，比如下面的TCP client。
二、二次开发（类重写）
1. Tcp socket client 类
import time
import random
# from socket import socket, AF_INET, SOCK_STREAM
import socket
from locust import Locust, TaskSet, events, task# author: Max.Bai
# date: 2017-04class TcpSocketClient(socket.socket):# locust tcp client# author: Max.Bai@2017def __init__(self, af_inet, socket_type):super(TcpSocketClient, self).__init__(af_inet, socket_type)def connect(self, addr):start_time = time.time()try:super(TcpSocketClient, self).connect(addr)except Exception as e:total_time = int((time.time() - start_time) * 1000)events.request_failure.fire(request_type="tcpsocket", name="connect", response_time=total_time, exception=e)else:total_time = int((time.time() - start_time) * 1000)events.request_success.fire(request_type="tcpsocket", name="connect", response_time=total_time, response_length=0)def send(self, msg):start_time = time.time()try:super(TcpSocketClient, self).send(msg)except Exception as e:total_time = int((time.time() - start_time) * 1000)events.request_failure.fire(request_type="tcpsocket", name="send", response_time=total_time, exception=e)else:total_time = int((time.time() - start_time) * 1000)events.request_success.fire(request_type="tcpsocket", name="send", response_time=total_time, response_length=0)def recv(self, bufsize):recv_data = ''start_time = time.time()try:recv_data = super(TcpSocketClient, self).recv(bufsize)except Exception as e:total_time = int((time.time() - start_time) * 1000)events.request_failure.fire(request_type="tcpsocket", name="recv", response_time=total_time, exception=e)else:total_time = int((time.time() - start_time) * 1000)events.request_success.fire(request_type="tcpsocket", name="recv", response_time=total_time, response_length=0)return recv_data
2. Locust 类
class TcpSocketLocust(Locust):"""This is the abstract Locust class which should be subclassed. It provides an TCP socket clientthat can be used to make TCP socket requests that will be tracked in Locust's statistics.author: Max.bai@2017"""def __init__(self, *args, **kwargs):super(TcpSocketLocust, self).__init__(*args, **kwargs)self.client = TcpSocketClient(socket.AF_INET, socket.SOCK_STREAM)ADDR = (self.host, self.port)self.client.connect(ADDR)
三、Locust-Tcp应用
1、Locust运行应用
class TcpTestUser(TcpSocketLocust):host = "127.0.0.1"port = 12345min_wait = 100max_wait = 1000class task_set(TaskSet): @taskdef send_data(self):self.client.send(random_str())data = self.client.recv(2048).decode()print(data)if __name__ == "__main__":user = TcpTestUser()user.run()
2、Tcp server 方便测试使用
#!/usr/bin/env python3
#-*- coding:utf-8 -*-import time
from socket import socket, AF_INET, SOCK_STREAM
import threadingbuffsize = 2048def tcplink(sock, addr):# print 'Accept new connection from %s:%s...' % addrsock.send('Welcome!')while True:try:# data = sock.recv(buffsize)data = sock.recv(buffsize).decode()time.sleep(1)if data == 'exit' or not data:breaksock.send('Hello, %s!' % data)except Exception as e:print(str(e))breaksock.close()print 'Connection from %s:%s closed.' % addrdef main():host = ''port = 12345ADDR = (host,port)tctime = socket(AF_INET,SOCK_STREAM)tctime.bind(ADDR)tctime.listen(3)print('Wait for connection ...')while True:sock,addr = tctime.accept()print 'Accept new connection from %s:%s...' % addrt = threading.Thread(target=tcplink, args=(sock, addr))t.start()if __name__=="__main__":main()