ab

参数说明：

  • -n: 总请求数，请求结束后退出
  • -c: 一次产生的请求数，即并发个数
  • -p: 模拟post请求，文件格式为gid=2&status=1,配合-T使用
  • -T: post数据所使用的Content-Type头信息，比如 -T ‘application/x-www-form-urlencoded’

  1. 模拟gei请求

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    ab -c 10 -n 10 http://www.test.api.com/?gid=2

  2. 模拟post请求 在当前目录下创建一个文件post.txt

编辑文件post.txt写入

cid=4&status=1

相当于post传递cid,status参数

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ab -n 100  -c 10 -p 'post.txt' -T 'application/x-www-form-urlencoded' 'http://test.api.com/ttk/auth/info/'
  1. 结果分析
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    Server Software:        BWS/1.1
    Server Hostname:        www.baidu.com
    Server Port:            80

    Document Path:          /
    Document Length:        154179 bytes

    Concurrency Level:      10
    Time taken for tests:   0.877 seconds
    Complete requests:      10
    Failed requests:        9
       (Connect: 0, Receive: 0, Length: 9, Exceptions: 0)
    Total transferred:      1549288 bytes
    HTML transferred:       1539602 bytes
    Requests per second:    11.41 [#/sec] (mean)
    Time per request:       876.697 [ms] (mean)
    Time per request:       87.670 [ms] (mean, across all concurrent requests)
    Transfer rate:          1725.77 [Kbytes/sec] received

    Connection Times (ms)
                  min  mean[+/-sd] median   max
    Connect:       31   37   5.6     42      42
    Processing:   201  571 169.9    540     769
    Waiting:       34  107  97.7     50     311
    Total:        232  608 171.9    582     811

    Percentage of the requests served within a certain time (ms)
      50%    582
      66%    733
      75%    753
      80%    782
      90%    811
      95%    811
      98%    811
      99%    811
     100%    811 (longest request)
    当结果里 Failed requests 不为0的时候，就表示已经达到系统最高并发了，这时的 Requests per second 较为准确