4、 AB压力测试
先修改最大文件数限制
[root@localhost htdocs]# ulimit -a | grep "open files"
open files (-n) 1024
[root@localhost htdocs]# ulimit -n 10000
[root@localhost htdocs]# ulimit -a | grep "open files"
open files (-n) 10000
[root@localhost htdocs]# /usr/local/apache2/bin/ab -q -c 2000 \
-n 4000 http://www.crazylinux.com/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking www.crazylinux.com (be patient).....done
Server Software: Apache/2.2.13
Server Hostname: www.crazylinux.com
Server Port: 80
Document Path: /
Document Length: 19 bytes
Concurrency Level: 2000 //用于并发连接的请求数
Time taken for tests: 8.958 seconds //测试过程消耗的时间
Complete requests: 4000 //测试过程总共完成的请求数
Failed requests: 0 //失败的请求数
Write errors: 0
Total transferred: 1078152 bytes //测试过程网络传输量
HTML transferred: 76152 bytes //测试过程中的HTML内容传输量
Requests per second: 446.51 [#/sec] (mean) //服务器平均每秒相应的请求数
Time per request: 4479.196 [ms] (mean) //服务器平均每请求的相应时间
Time per request: 2.240 [ms] (mean, across all concurrent requests)
Transfer rate: 117.53 [Kbytes/sec] received
Connection Times (ms) //连接时间统计信息
min mean[+/-sd] median max
Connect: 0 535 1262.9 0 4313
Processing: 1 583 1539.2 42 8389
Waiting: 0 583 1539.1 42 8386
Total: 36 1118 2052.6 42 8956
Percentage of the requests served within a certain time (ms)
50% 42
66% 76
75% 864
80% 2489
90% 4321
95% 4609
98% 8872
99% 8909
100% 8956 (longest request)
open files (-n) 1024
[root@localhost htdocs]# ulimit -n 10000
[root@localhost htdocs]# ulimit -a | grep "open files"
open files (-n) 10000
[root@localhost htdocs]# /usr/local/apache2/bin/ab -q -c 2000 \
-n 4000 http://www.crazylinux.com/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking www.crazylinux.com (be patient).....done
Server Software: Apache/2.2.13
Server Hostname: www.crazylinux.com
Server Port: 80
Document Path: /
Document Length: 19 bytes
Concurrency Level: 2000 //用于并发连接的请求数
Time taken for tests: 8.958 seconds //测试过程消耗的时间
Complete requests: 4000 //测试过程总共完成的请求数
Failed requests: 0 //失败的请求数
Write errors: 0
Total transferred: 1078152 bytes //测试过程网络传输量
HTML transferred: 76152 bytes //测试过程中的HTML内容传输量
Requests per second: 446.51 [#/sec] (mean) //服务器平均每秒相应的请求数
Time per request: 4479.196 [ms] (mean) //服务器平均每请求的相应时间
Time per request: 2.240 [ms] (mean, across all concurrent requests)
Transfer rate: 117.53 [Kbytes/sec] received
Connection Times (ms) //连接时间统计信息
min mean[+/-sd] median max
Connect: 0 535 1262.9 0 4313
Processing: 1 583 1539.2 42 8389
Waiting: 0 583 1539.1 42 8386
Total: 36 1118 2052.6 42 8956
Percentage of the requests served within a certain time (ms)
50% 42
66% 76
75% 864
80% 2489
90% 4321
95% 4609
98% 8872
99% 8909
100% 8956 (longest request)
