Apache ab压力测试
1、 本地安装apache
2、 在安装目录下的bin目录双击ab.exe起动ab
3、 在cmd执行命令
a) 进入apache安装目录下的bin目录
b) 在bin目录下执行压测命令，如下：
D:AppServApache2.2in>ab -n 10 -c 5 http://120.25.105.232/wordpress/
# -n ：总共请求数； -c：总共并发数；意思是5个用户一共发送10个请求
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/
Benchmarking 120.25.105.232 (be patient).....done
Server Software: Apache/2.2.15 服务器版本信息
Server Hostname: 120.25.105.232 服务器主机名
Server Port: 80 服务器端口号
Document Path: /wordpress/ 测试页面的路径
Document Length: 45892 bytes 测试页面的大小
Concurrency Level: 5 所有并发用户数
Time taken for tests: 4.584459 seconds 所有这些请求处理完成所花费的时间
Complete requests: 10 总共完成的请求数
Failed requests: 0 失败的请求数
Write errors: 0
Total transferred: 461230 bytes 网络总传输量
HTML transferred: 458920 bytes HTML内容传输量
Requests per second: 2.18 [#/sec] (mean) 吞吐量-每秒处理请求数=总请求数 / 处理完成这些请求数所花费的时间，即Request per second = Complete requests / Time taken for tests
Time per request: 2292.229 [ms] (mean) 平均响应时间（用户平均请求等待时间）
Time per request: 458.446 [ms] (mean, across all concurrent requests) 服务器平均处理时间
Transfer rate: 98.16 [Kbytes/sec] received 平均每秒网络上的流量,（传输速率）
网络上消耗的时间的分解：
Connection Times (ms)
min mean[+/-sd] median max
Connect: 4 81 97.0 88 249
Processing: 1051 1924 730.7 2123 2890
Waiting: 639 996 335.4 1074 1488
Total: 1249 2006 654.9 2129 2897
整个场景中所有请求的响应情况
Percentage of the requests served within a certain time (ms)
50% 2129
66% 2372
75% 2711
80% 2817
90% 2897
95% 2897
98% 2897
99% 2897
100% 2897 (longest request)
10个并发，100个请求
D:AppServApache2.2in>ab -n 100 -c 10 http://120.25.105.232/wordpress/
This is ApacheBench, Version 2.0.40-dev <$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 120.25.105.232 (be patient).....done
Server Software: Apache/2.2.15
Server Hostname: 120.25.105.232
Server Port: 80
Document Path: /wordpress/
Document Length: 45892 bytes
Concurrency Level: 10
Time taken for tests: 36.594659 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 4612300 bytes
HTML transferred: 4589200 bytes
Requests per second: 2.73 [#/sec] (mean)
Time per request: 3659.466 [ms] (mean)
Time per request: 365.947 [ms] (mean, across all concurrent requests)
Transfer rate: 123.08 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 4 314 131.1 346 1052
Processing: 1052 3264 1086.2 3101 7664
Waiting: 490 1227 611.1 1051 3203
Total: 1450 3578 1007.7 3439 7672
Percentage of the requests served within a certain time (ms)
50% 3439
66% 3449
75% 3460
80% 3498
90% 4652
95% 6368
98% 7266
99% 7672
100% 7672 (longest request)