python性能测试locust

测试服务端：

from flask import Flask,request
app = Flask(__name__)

@app.route("/login", methods=['POST'])
def login():
    if 0:
        username = request.form.get('username')
        password = request.form.get('password')
    else:
        data = request.json
        username = data.get('username')
        password = data.get('password')
    
    if username == 'test' and password == 'pass':
        return 'OK'
    else:
        return "FAILED"
    
@app.route("/products")
def products():
    product = {
        'id':1,
        'name': '商品',
        'price': 23.22    
    }
    return [product, product, product]
    
@app.route("/product/1")
def product():
    product = {
        'id':1,
        'name': '商品',
        'price': 23.22     
    }
    return product

if __name__ == "__main__":
    app.run()

　　

测试脚本 locustfile1.py ：

from locust import HttpUser,task,between,TaskSet

class WebsiteUser(HttpUser):
# 请求间等待时间1-3秒（模拟用户思考时间）
    wait_time = between(1,3)

    # 每个用户启动时执行（用于登录等操作）
    def on_start(self):
        self.client.post("/login", json={"username":"test","password":"pass"})
    
    # 权重为3，执行频率高
    @task(3)
    def browse_products(self):
        self.client.get("/products")
    
    # 权重为1，执行频率较低
    @task
    def view_detail(self):
        self.client.get("/product/1")

　　

执行命令：

启动服务：
python server.py

 * Serving Flask app 'server'
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on http://127.0.0.1:5000
Press CTRL+C to quit
127.0.0.1 - - [21/Jul/2025 18:52:51] "GET /product/1 HTTP/1.1" 200 -
127.0.0.1 - - [21/Jul/2025 18:52:51] "GET /product/1 HTTP/1.1" 200 -
127.0.0.1 - - [21/Jul/2025 18:52:51] "GET /product/1 HTTP/1.1" 200 -



启动模拟脚本
locust -f locustfile1.py --host=http://127.0.0.1:5000

[2025-07-21 18:48:09,532] xuxb/INFO/locust.main: Starting Locust 2.37.14
[2025-07-21 18:48:09,532] xuxb/INFO/locust.main: Starting web interface at http://localhost:8089, press enter to open your default browser.
=== Test started ===
[2025-07-21 18:48:14,550] xuxb/INFO/locust.runners: Ramping to 1 users at a rate of 1.00 per second
[2025-07-21 18:48:14,550] xuxb/INFO/locust.runners: All users spawned: {"WebsiteUser": 1} (1 total users)
[2025-07-21 18:49:10,115] xuxb/INFO/locust.runners: Ramping to 50 users at a rate of 1.00 per second
[2025-07-21 18:49:55,787] xuxb/INFO/locust.runners: All users spawned: {"WebsiteUser": 50} (50 total users)
⚠️ Slow request detected: /products took 2004.729899999802ms
⚠️ Slow request detected: /products took 2005.1908000023104ms
⚠️ Slow request detected: /products took 2004.752599998028ms
⚠️ Slow request detected: /products took 2008.4557999944082ms
⚠️ Slow request detected: /products took 2006.2850000031176ms

　　

压测结果：

打开：http://localhost:8089/

 

参考：https://blog.csdn.net/weixin_40123451/article/details/118709125