一、ab命令
ab工具
Apache服务器的性能测试工具,它可以测试安装Web服务器每秒处理的HTTP请求.
语法
- ab {选项} {参数}
选项
- -A:指定连接服务器的基本的认证凭据;
- -c:指定一次向服务器发出请求数;
- -C:添加cookie;
- -g:将测试结果输出为“gnuolot”文件;
- -h:显示帮助信息;
- -H:为请求追加一个额外的头;
- -i:使用“head”请求方式;
- -k:激活HTTP中的“keepAlive”特性;
- -n:指定测试会话使用的请求数;
- -p:指定包含数据的文件;
- -q:不显示进度百分比;
- -T:使用POST数据时,设置内容类型头;
- -v:设置详细模式等级;
- -w:以HTML表格方式打印结果;
- -x:以表格方式输出时,设置表格的属性;
- -X:使用指定的代理服务器发送请求;
- -y:以表格方式输出时,设置表格属性。
参数
- 主机:被测试主机。
二、ab压力测试
[root@apache_251 apache]# ./bin/ab -n 10000 -c 200 http://192.168.11.251/index.php [root@apache_251 apache]# ./bin/ab -n 10000 -c 200 http://192.168.11.251/index.php This is ApacheBench, Version 2.3 <$Revision: 1843412 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking 192.168.11.251 (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests Completed 10000 requests Finished 10000 requests Server Software: Apache/2.4.39 web服务器软件版本 Server Hostname: 192.168.11.251 web服务器地址 Server Port: 80 web服务器端口 Document Path: /index.php URI Document Length: 0 bytes Concurrency Level: 200 Time taken for tests: 238.891 seconds 完成请求总共用的时间 Complete requests: 10000 完成10000个请求 Failed requests: 0 失败0个请求 Non-2xx responses: 10000 非2xx返回码请求 Total transferred: 3300000 bytes 总共传输字节数 HTML transferred: 0 bytes Requests per second: 41.86 [#/sec] (mean) 并发数,反应服务器的性能,并发数=Complete requests/Time taken for tests Time per request: 4777.821 [ms] (mean) 用户平均请求等待时间 Time per request: 23.889 [ms] (mean, across all concurrent requests) 服务器平均请求等待时间 Transfer rate: 13.49 [Kbytes/sec] received 传输速率 Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.3 0 3 Processing: 91 4729 1932.0 4717 21860 Waiting: 89 4729 1932.0 4717 21860 Total: 92 4729 1931.9 4717 21860 Percentage of the requests served within a certain time (ms) 50% 4717 66% 4784 75% 4977 80% 6294 90% 7809 95% 8018 98% 9788 99% 11148 100% 21860 (longest request)