“关于压力测试和并发的那些事儿”的版本间的差异
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===siege === | ===siege === | ||
2021年4月24日 (六) 08:49的版本
目录
start
首先是基本知识点
这两个比较偏向web 测试
并发承载
10W 活跃用户 访问4个页面 一次页面加3次接口 10w*4*4 =160W 一般人睡觉8个小时 so 一天 24-8=16h 10W日活 * 4次访问数*每次4个接口或者页面 = 160W 16h*60min*60s= 57 600 s 160w/57600=28QPS OR TPS 真实情况下 5 分钟内的活跃用户为1000 100*4*4=1600 1600/(5*6)=53QPS 反来说 如果一个系统的qps 100 一天能顶的访问量为 100*60*60*24=8 640 000 也就是864W ps TPS：Transactions Per Second（每秒传输的事物处理个数） QPS（TPS）：每秒钟 request/事务 数量，在互联网领域，指每秒响应请求数（指http请求）
常用的压力测试工具
ab
ab 参数有时比较 搞笑
10000 请求100并发
ab -n 10000 -c 100 ip
Usage: ab [options] [http[s]://]hostname[:port]/path
ab -n 100 -c 10 http://192.168.88.173/index.html
ab -n 1000 -c 1000 http://192.168.88.173/index.html
可能就动不了了
ab -n 10000 -c 10000 http://192.168.88.173/index.html
eg
# ab -n 1000 -c 1000 http://192.168.88.173/index.html
This is ApacheBench, Version 2.3 <$Revision: 1879490 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.88.173 (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: Apache
Server Hostname: 192.168.88.173
Server Port: 80
Document Path: /index.html
Document Length: 196 bytes
Concurrency Level: 1000
Time taken for tests: 0.404 seconds
Complete requests: 1000
Failed requests: 0
Non-2xx responses: 1000
Total transferred: 360000 bytes
HTML transferred: 196000 bytes
Requests per second: 2473.61 [#/sec] (mean)
Time per request: 404.268 [ms] (mean)
Time per request: 0.404 [ms] (mean, across all concurrent requests)
Transfer rate: 869.63 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 1 26 23.5 18 75
Processing: 13 170 108.4 234 323
Waiting: 1 170 108.5 234 323
Total: 14 196 128.7 246 392
Percentage of the requests served within a certain time (ms)
50% 246
66% 279
75% 300
80% 312
90% 369
95% 380
98% 387
99% 389
100% 392 (longest request)
siege
可能得修改一下配置
siege -c 2000 -t 60s http:192.168.88.173
================================================================
WARNING: The number of users is capped at 255. To increase this
limit, search your .siegerc file for 'limit' and change
its value. Make sure you read the instructions there...
================================================================
vim .siege/siege.conf
# ex: limit = 1023 (default is 255)
#
limit = 2559
100并发 30s
siege -c 100 -t 30s http:ip
wrk 可以lua脚本
4个线程
wrk -c 100 -d 30s -t 4 ip
https://askubuntu.com/questions/932449/siege-cannot-perform-load-testing-for-more-than-255-tests
介绍几款Web服务器性能压力测试工具ApacheBench(ab) Siege详解
Web服务器性能/压力测试工具http_load、webbench、ab、Siege使用教程
