Nginx ab压力测试

20-ab压力测试及nginx性能统计模块

优化的启发，打开的文件太多

Nginx 错误日志显示，打开文件数太多

系统层面

more /proc/sys/net/core/somaxconn

单个Nginx 测试index.html

没优化前

[root@/home/www]#ab -c  -n   http://test.demo.com/index.html
Concurrency Level:
Time taken for tests:   18.596 seconds
Complete requests:
Failed requests:
   (Connect: , Receive: , Length: , Exceptions: )
Non-2xx responses:
Total transferred:       bytes
HTML transferred:        bytes
Requests per second:    5377.62 [#/sec] (mean)
Time per request:       743.823 [ms] (mean)
Time per request:       0.186 [ms] (mean, across all concurrent requests)
Transfer rate:          1678.09 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:           582.3
Processing:        612.0
Waiting:            287.2
Total:             862.2        

Percentage of the requests served within a certain time (ms)
  %
  %
  %
  %
  %
  %
  %
  %
 %   (longest request)

优化后

[root@/home/www]#ab -c  -n   http://test.demo.com/index.html
Concurrency Level:
Time taken for tests:   8.154 seconds
Complete requests:
Failed requests:
Non-2xx responses:
Total transferred:       bytes
HTML transferred:        bytes
Requests per second:    12263.42 [#/sec] (mean)
Time per request:       326.173 [ms] (mean)
Time per request:       0.082 [ms] (mean, across all concurrent requests)
Transfer rate:          3832.32 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:           418.0
Processing:        106.9
Waiting:            106.7
Total:             433.1         

Percentage of the requests served within a certain time (ms)
  %
  %
  %
  %
  %
  %
  %
  %
 %    (longest request)

ab 测试过程出现的以下问题，则是由于客户端原因造成的，而不是服务器原因，修改客户端配置既可以

Completed  requests
Completed  requests
apr_socket_recv: Connection timed out ()
Total of  requests completed