n 发起多少个请求 c生成多少次并发请求

[root@MIO-R300 ~]# ab -n 1000 -c 1000 http://192.168.1.254/

This is ApacheBench, Version 2.3 mio_lt;$Revision: 655654 $mio_gt;

Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/

Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.1.254 (be patient)

Completed 100 requests

Completed 200 requests

Completed 300 requests

Completed 400 requests

Completed 500 requests

Completed 600 requests

Completed 700 requests

Completed 800 requests

Completed 900 requests

Completed 1000 requests

Finished 1000 requests

Server Software:        Apache/2.2.15

Server Hostname:        192.168.1.254

Server Port:            80

Document Path:          /

Document Length:        138 bytes

Concurrency Level:      1000

Time taken for tests:   1.575 seconds //测试花费时间

Complete requests:      1000 //成功

Failed requests:        0 //失败

Write errors:           0

Total transferred:      636405 bytes

HTML transferred:       144210 bytes

Requests per second:    635.04 [#/sec] (mean) //每秒处理事务数

Time per request:       1574.705 [ms] (mean)

Time per request:       1.575 [ms] (mean, across all concurrent requests) //平均一个事务响应时间

Transfer rate:          394.67 [Kbytes/sec] received

Connection Times (ms)

             min  mean[+/-sd] median   max

Connect:        3  289 401.8     70    1089

Processing:    61  199 241.0    153    1533

Waiting:        3  166 244.2    131    1503

Total:        135  488 423.1    222    1571

Percentage of the requests served within a certain time (ms) //事务处理占用时间 50%的事务 222毫秒 最长的是1571毫秒

 50%    222

 66%    390

 75%    481

 80%   1127

 90%   1220

 95%   1224

 98%   1555

 99%   1565

100%   1571 (longest request)

[root@MIO-R300 ~]#

接下来又压了一次 2000次请求 1000并发

[root@MIO-R300 ~]# ab -n 2000 -c 1000 http://192.168.1.254/

This is ApacheBench, Version 2.3 mio_lt;$Revision: 655654 $mio_gt;

Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/

Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.1.254 (be patient)

Completed 200 requests

Completed 400 requests

Completed 600 requests

Completed 800 requests

Completed 1000 requests

Completed 1200 requests

Completed 1400 requests

Completed 1600 requests

Completed 1800 requests

Completed 2000 requests

Finished 2000 requests

Server Software:        Apache/2.2.15

Server Hostname:        192.168.1.254

Server Port:            80

Document Path:          /

Document Length:        138 bytes

Concurrency Level:      1000

Time taken for tests:   3.161 seconds

Complete requests:      2000

Failed requests:        0

Write errors:           0

Total transferred:      1238097 bytes

HTML transferred:       280554 bytes

Requests per second:    632.74 [#/sec] (mean)

Time per request:       1580.420 [ms] (mean)

Time per request:       1.580 [ms] (mean, across all concurrent requests)

Transfer rate:          382.52 [Kbytes/sec] received

Connection Times (ms)

             min  mean[+/-sd] median   max

Connect:        3  281 611.2     59    3046

Processing:     2  495 673.1    179    2223

Waiting:        0  460 677.9    161    2222

Total:        142  775 943.7    227    3134

Percentage of the requests served within a certain time (ms)

 50%    227

 66%    288

 75%   1215

 80%   2203

 90%   2412

 95%   2463

 98%   3104

 99%   3119

100%   3134 (longest request)

[root@MIO-R300 ~]#

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