1.linux服务器，如果web环境是nginx，需要安装ab工具
windows：
ab.exe -n 1000 -c 100
yum -y install httpd-tools
2.语法：
ab -n 1000 -c 1000 http://m.zhyook.com/index
-n:访问的总次数
-c:同时有多少人访问
3.
[root@iz8vbddvm6d8lg3skzleivz ~]# ab -n 13000 -c 13000 http://m.zhyook.com/index
This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking m.zhyook.com (be patient)
Completed 1300 requests
Completed 2600 requests
Completed 3900 requests
Completed 5200 requests
Completed 6500 requests
Completed 7800 requests
Completed 9100 requests
Completed 10400 requests
Completed 11700 requests
Completed 13000 requests
Finished 13000 requests
Server Software: nginx
Server Hostname: m.zhyook.com
Server Port: 80
Document Path: /index
Document Length: 1994 bytes
Concurrency Level: 13000
Time taken for tests: 8.876 seconds
Complete requests: 13000
Failed requests: 0
Write errors: 0
Total transferred: 29172000 bytes
HTML transferred: 25922000 bytes
Requests per second: 1464.65 [#/sec] (mean)
Time per request: 8875.864 [ms] (mean)
Time per request: 0.683 [ms] (mean, across all concurrent requests)
Transfer rate: 3209.63 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 348 73.4 345 1003
Processing: 0 2471 2162.3 2101 8164
Waiting: 0 2156 2023.5 1806 8162
Total: 0 2819 2140.4 2473 8467
Percentage of the requests served within a certain time (ms)
50% 2473
66% 4424
75% 4446
80% 4464
90% 4476
95% 8422
98% 8446
99% 8455
100% 8467 (longest request)
4.
Time taken for tests: 8.876 seconds
请求一共话费的时间
5.
Complete requests: 13000
一共请求的次数
6.
Requests per second: 1464.65 [#/sec] (mean)
一秒钟完成多少次
7.
Time per request: 0.683 [ms] (mean, across all concurrent requests)
1个人完成一次请求花费的时间
