uwsgi性能调忧

摘要：调大uwsgi配置中 listen=1024的数目是提高并发能力最有效的办法。第二种方法是调大processes数目

发现总是超时报警

1  使用ab确定网络具体征况

[bre@dmp-1 ~]$ ab -n 1000 -c 100 http://.com/Mapping.do?


Concurrency Level:      100
Time taken for tests:   1.040 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Non-2xx responses:      1000
Total transferred:      486000 bytes
HTML transferred:       0 bytes
Requests per second:    961.42 [#/sec] (mean)
Time per request:       104.013 [ms] (mean)
Time per request:       1.040 [ms] (mean, across all concurrent requests)
Transfer rate:          456.30 [Kbytes/sec] received


Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.4      0       2
Processing:     3   28  61.9     25    1005
Waiting:        3   28  61.9     25    1005
Total:          5   28  61.9     25    1006


Percentage of the requests served within a certain time (ms)
  50%     25
  66%     26
  75%     26
  80%     26
  90%     27
  95%     27
  98%     29
  99%     31

 100%   1006 (longest request)

[bre@dmp-1 ~]$ ab -n 1000 -c 200 http://.com/Mapping.do?

Concurrency Level:      200
Time taken for tests:   3.022 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Non-2xx responses:      909
Total transferred:      463432 bytes
HTML transferred:       0 bytes
Requests per second:    330.91 [#/sec] (mean)
Time per request:       604.403 [ms] (mean)
Time per request:       3.022 [ms] (mean, across all concurrent requests)
Transfer rate:          149.76 [Kbytes/sec] received


Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   1.2      0       4
Processing:     6  274 791.9     28    3015
Waiting:        6  274 791.9     28    3015
Total:     &nb