locust压测入门 | 易学教程

一、安装

pip install locust

了解locust相关命令：locust --help

二、获取当前CPU核心数（后面需要根据核心数起进程）

pip3 install psutil

```
import pustil
print(pustil.cpu_count(False))
```

三、准备压测脚本（lc.py）：

```
# 这是一个压测的临时脚本.
import requests
import json
import uuid
import time
from locust import between, task, constant
from locust.contrib.fasthttp import FastHttpUser
import random

# from utils.data import data
data = {
"header": [["query"]],
"data": [
{"query": "后海大鲨鱼"},
{"query": "这个衣服宽松不"},
{"query": "包装好点"},
],
}

class WebsiteUser(FastHttpUser):
wait_time = between(1, 1)
host = "http://nta-api-ks.leyanbot.com"

def body(self):
test_data = data["data"]
_index = random.randint(0, len(test_data) - 1)
q = test_data[_index]["query"]
request_id = str(uuid.uuid4())
text = {"text": q}
# form user 随机
# role 2、3 随机
# to-user 跟坐席一致
role_list = [2, 3]
_role_list_index = random.randint(0, 1)

body = {
"requestId": request_id,
"createTime": int(time.time()),
"generator": 1,
"type": 1,
"fromUser": {"nickName": f"LcTestUser-{request_id}", "role": 1, "openId": "sth-ApiTest"},
"toUser": {"nickName": "lc-test", "role": role_list[_role_list_index], "openId": ""},
"message": {"contentType": 1, "content": json.dumps(text)},
"context": {"sellerId": 1724795549, "itemId": 0},
"assistantOnlineStatus": 1,
}
return body

@task
def ks(self):
data = self.body()
with self.client.post(
"/agent/conversation/ks", catch_response=True, json=data
) as response:
if response.status_code == 200:
print(response.json())
response.success()
else:
try:
_resp = response.json()
except Exception:
_resp = {"msg": "get response json error"}
print(f"nick_name:{data['fromUser']['nickName']},code:{response.status_code}. resp:{_resp}")
response.failure(f"code is not 200:{response.status_code}")

def on_stop(self):
self.client.cookies.clear()