async-rails-bm.txt

igrigorik ~/> ab -c 220 -n 2000 http://127.0.0.1:3000/widgets
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 127.0.0.1 (be patient)
Completed 200 requests
Completed 400 requests
Completed 600 requests
Completed 800 requests
Completed 1000 requests
Completed 1200 requests
Completed 1400 requests
Completed 1600 requests
Completed 1800 requests
Completed 2000 requests
Finished 2000 requests


Server Software:        thin
Server Hostname:        127.0.0.1
Server Port:            3000

Document Path:          /widgets
Document Length:        6 bytes

Concurrency Level:      220
Time taken for tests:   10.698 seconds
Complete requests:      2000
Failed requests:        0
Write errors:           0
Total transferred:      470235 bytes
HTML transferred:       12006 bytes
Requests per second:    186.95 [#/sec] (mean)
Time per request:       1176.777 [ms] (mean)
Time per request:       5.349 [ms] (mean, across all concurrent requests)
Transfer rate:          42.93 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   37 177.2      0     928
Processing:  1004 1081  95.5   1053    1402
Waiting:     1004 1077  86.2   1050    1353
Total:       1004 1119 202.8   1059    2094

Percentage of the requests served within a certain time (ms)
  50%   1059
  66%   1078
  75%   1102
  80%   1147
  90%   1366
  95%   1404
  98%   2017
  99%   2047
 100%   2094 (longest request)

Note: to run this test with db pool 250, we must configure max_connections in my.cnf with the value >= 250. For ex:
[mysqld]
max_connections = 5000