使用apache自带的HTTP服务器性能测试工具ab对上述程序在FreeBSD和windows（Cygwin）下的运行情况进行测试。
网路条件：局域网，192.168.1.7分别在FreeBSD和windows（Cygwin）下运行服务器程序，192.168.1.27运行ab测试程序对服务器程序进行测试；
机器硬件条件：Intel (R) Celeron CPU 2.40GHz；256DDR，Maxtor 80G。
1. FreeBSD 4.7环境：
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C:\>ab -n 1000 -c 50 192.168.1.7/124
This is ApacheBench, Version 2.0.41-dev <$Revision: 1.121.2.12 $> apache-2.0
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.1.7 (be patient)
Server Software: mypngserver
Server Hostname: 192.168.1.7
Server Port: 80
Document Path: /124
Document Length: 188 bytes
Concurrency Level: 50
Time taken for tests: 77.831917 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Total transferred: 346000 bytes
HTML transferred: 188000 bytes
Requests per second: 12.85 [#/sec] (mean)
Time per request: 3891.596 [ms] (mean)
Time per request: 77.832 [ms] (mean, across all concurrent requests)
Transfer rate: 4.33 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 77 41.7 100 100
Processing: 10 3718 481.4 3805 3905
Waiting: 0 1997 1104.4 2002 3905
Total: 110 3796 481.8 3905 3905
Percentage of the requests served within a certain time (ms)
50% 3905
66% 3905
75% 3905
80% 3905
90% 3905
95% 3905
98% 3905
99% 3905
100% 3905 (longest request)
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2. Windows XP (Cygwin)环境：
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C:\>ab -n 1000 -c 50 192.168.1.7/qwe
This is ApacheBench, Version 2.0.41-dev <$Revision: 1.121.2.12 $> apache-2.0
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.1.7 (be patient)
Server Software: mypngserver
Server Hostname: 192.168.1.7
Server Port: 80
Document Path: /qwe
Document Length: 193 bytes
Concurrency Level: 50
Time taken for tests: 719.454525 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Total transferred: 351000 bytes
HTML transferred: 193000 bytes
Requests per second: 1.39 [#/sec] (mean)
Time per request: 35972.726 [ms] (mean)
Time per request: 719.455 [ms] (mean, across all concurrent requests)
Transfer rate: 0.48 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 712 311.2 520 1191
Processing: 4326 34387 4359.4 35221 36192
Waiting: 3815 20803 9140.2 20769 36111
Total: 5127 35099 4359.4 36111 36933
Percentage of the requests served within a certain time (ms)
50% 36111
66% 36212
75% 36312
80% 36392
90% 36612
95% 36712
98% 36812
99% 36822
100% 36933 (longest request)
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