ab测试工具

1.ab结果输出解释

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Server Software:        Apache/2.2.15 Server Hostname:        10.0.10.10 Server Port:            4000   Document Path:          /abc Document Length:        506662912 bytes   Concurrency Level:      2                                                       #并发数 Time taken for tests:   19.017 seconds                                          #测试的总时间 Complete requests:      2                                                       #完成的请求数 Failed requests:        0                                                       #失败的请求数 Write errors:           0                               Total transferred:      1013326424 bytes                                        #总的下载大小 HTML transferred:       1013325824 bytes                                        #HTML数据的下载大小 Requests per second:    0.11 [#/sec] (mean)                                     #每秒可以处理的请求数，即每秒可以处理0.11个请求（即每秒可以下载0.11个Document Length）。 Time per request:       19016.986 [ms] (mean)                                   #平均每个请求的耗时，即平均每个请求用了多少ms（每个请求的时间和/完成的请求数） Time per request:       9508.493 [ms] (mean, across all concurrent requests)    #完成一个请求需要的平均时间（总时间/完成的请求数） Transfer rate:          52036.46 [Kbytes/sec] received                          #传输速率，即52M/s左右   Connection Times (ms)                                                           #连接每个阶段的处理时间               min  mean[+/-sd] median   max Connect:      100  100   0.1    100     100                                     #连接时间 Processing: 18662 18663   1.9  18664   18664                                    #处理时间 Waiting:      152  153   1.4    154     154                                     #等待时间 Total:      18762 18764   1.9  18765   18765                                    #总时间   Percentage of the requests served within a certain time (ms)                    #百分比请求耗时   50%  18765                                                                    #表示50%的请求在18765ms内完成   66%  18765   75%  18765   80%  18765   90%  18765                                                                    #表示90%的请求在18765ms内完成   95%  18765   98%  18765   99%  18765  100%  18765 (longest request)