下面是我使用ab.exe 测试新浪一个页面的结果：

 

C:Users ickyjfDesktopuseful>ab -n1000 -c100 http://sports.sina.com.cn/k/2011-05-24/12095590365.shtml
This is ApacheBench， Version 2.3 <Revision:655654>
Copyright 1996 Adam Twiss， Zeus Technology Ltd， http://www.zeustech.net/
Licensed to The Apache Software Foundation， http://www.apache.org/
Benchmarking sports.sina.com.cn (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/2.0.63
Server Hostname:        sports.sina.com.cn
Server Port:            80
Document Path:          /k/2011-05-24/12095590365.shtml
Document Length:        86680 bytes
Concurrency Level:      100
Time taken for tests:   66.453 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      87135790 bytes
HTML transferred:       86680000 bytes
Requests per second:    15.05 [#/sec] (mean)
Time per request:       6645.294 [ms] (mean)
Time per request:       66.453 [ms] (mean， across all concurrent requests)
Transfer rate:          1280.51 [Kbytes/sec] received
Connection Times (ms)
min  mean[+/-sd] median   max
Connect:        1   56 398.3      2    3003
Processing:    89 6331 2603.7   6293   14626
Waiting:        2 1748 1485.9   1590    6284
Total:         90 6388 2615.0   6302   14627
Percentage of the requests served within a certain time (ms)
50%   6302
66%   7121
75%   8435
80%   9193
90%   9231
95%   9385
98%  11549
99%  12459
 14627 (longest request)

    3 apache的ab工具也算是一种ddos攻击工具