使用ab进行页面的压力测试

本是古典何须时尚 2023-10-17 20:38 19阅读 0赞

ab是apache自带的一个很好用的压力测试工具，当安装完apache的时候，就可以在bin下面找到ab

**参数说明及示例**

我们可以模拟100个并发用户，对一个页面发送1000个请求

![011508332345882.png][]

输入命令：ab -n1000 -c100 http://stone\_w.cnblogs.com/

其中-n代表请求数，-c代表并发数

返回结果:

\#\#首先是apache的版本信息   
This is ApacheBench, Version 2.3 <Revision:655654>  
Copyright 1996 Adam Twiss, Zeus Technology Ltd, [http://www.xxx.xxx/][http_www.xxx.xxx]  
Licensed to The Apache Software Foundation, [http://www.apache.org/][http_www.apache.org]

Benchmarking xxx.xxx.com (be patient)

Server Software: Apache/2.2.19 \#\#apache版本   
Server Hostname: vm1.xxx.com \#\#请求的机子   
Server Port: 80 \#\#请求端口

Document Path: /xxx.html   
Document Length: 25 bytes \#\#页面长度

Concurrency Level: 100 \#\#并发数   
Time taken for tests: 0.273 seconds \#\#共使用了多少时间   
Complete requests: 1000 \#\#请求数   
Failed requests: 0 \#\#失败请求   
Write errors: 0   
Total transferred: 275000 bytes \#\#总共传输字节数，包含http的头信息等   
HTML transferred: 25000 bytes \#\#html字节数，实际的页面传递字节数   
Requests per second: 3661.60 \[\#/sec\] (mean) \#\#每秒多少请求，这个是非常重要的参数数值，服务器的吞吐量   
Time per request: 27.310 \[ms\] (mean) \#\#用户平均请求等待时间   
Time per request: 0.273 \[ms\] (mean, across all concurrent requests) \#\#服务器平均处理时间，也就是服务器吞吐量的倒数   
Transfer rate: 983.34 \[Kbytes/sec\] received \#\#每秒获取的数据长度

Connection Times (ms)   
 min mean\[+/-sd\] median max   
Connect: 0 1 2.3 0 16   
Processing: 6 25 3.2 25 32   
Waiting: 5 24 3.2 25 32   
Total: 6 25 4.0 25 48

Percentage of the requests served within a certain time (ms)   
 50% 25 \#\# 50%的请求在25ms内返回   
 66% 26 \#\# 60%的请求在26ms内返回   
 75% 26   
 80% 26   
 90% 27   
 95% 31   
 98% 38   
 99% 43   
100% 48 (longest request)

**apache的ab工具也算是一种ddos攻击工具**

[011508332345882.png]: https://images0.cnblogs.com/blog2015/172074/201507/011508332345882.png
[http_www.xxx.xxx]: http://www.zeustech.net/
[http_www.apache.org]: http://www.apache.org/