ab压力测试

daizhongxian

[root@ibm ~]# ab -n 10000 -c 500 http://192.168.1.200/index.jsp
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.1.200 (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Finished 10000 requests


Server Software:        Apache/2.2.3
Server Hostname:        192.168.1.200
Server Port:            80

Document Path:          /index.jsp
Document Length:        8339 bytes

Concurrency Level:      500
Time taken for tests:   86.621452 seconds
Complete requests:      10000
Failed requests:        10
   (Connect: 0, Length: 10, Exceptions: 0)
Write errors:           0
Non-2xx responses:      10
Total transferred:      85872390 bytes
HTML transferred:       83321420 bytes
Requests per second:    115.44 [#/sec] (mean)
Time per request:       4331.073 [ms] (mean)
Time per request:       8.662 [ms] (mean, across all concurrent requests)
Transfer rate:          968.11 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0  138 658.2      0    8998
Processing: -3002 4452 4598.7   3470   49956      ----------------------怎么这里是负数啊？
Waiting:        0 4008 4674.1   2773   49950
Total:          0 4590 4736.0   3494   51806

Percentage of the requests served within a certain time (ms)
  50%   3494
  66%   3770
  75%   4022
  80%   4661
  90%   8517
  95%  12468
  98%  21011
  99%  28662
100%  51806 (longest request)

还有最下面的50%~100%是啥意思啊？不太了解。知道的给说下

jerrywjl

百分数是指，完成百分之几的访问需要多少时间。

daizhongxian

能讲的通俗点不。。。

stormcc

就是ab完成对应%50，%60，%70请求……的时候所需要的时间

gigilogin

不懂技术了啊,看样子,我快落后啊.

drunkedcat

原来还有 ab 这样的好东西呀，一直不知道，还想着什么时候自己写一个呢，这下又长见识了，谢谢。