apache ab工具页面压力测试返回结果含义解释

  ##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/   Licensed to The Apache Software Foundation, 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)