ab_output.txt

$ ab -n 5 -c 5 http://127.0.0.1:3000/
This is ApacheBench, Version 2.3 <$Revision: 1178079 $>
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).....done


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

Document Path:          /
Document Length:        6 bytes

Concurrency Level:      5
Time taken for tests:   25.009 seconds
Complete requests:      5
Failed requests:        0
Write errors:           0
Total transferred:      575 bytes
HTML transferred:       30 bytes
Requests per second:    0.20 [#/sec] (mean)
Time per request:       25008.950 [ms] (mean)
Time per request:       5001.790 [ms] (mean, across all concurrent requests)
Transfer rate:          0.02 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.1      0       0
Processing: 25009 25009   0.0  25009   25009
Waiting:    25008 25009   0.0  25009   25009
Total:      25009 25009   0.1  25009   25009

Percentage of the requests served within a certain time (ms)
  50%  25009
  66%  25009
  75%  25009
  80%  25009
  90%  25009
  95%  25009
  98%  25009
  99%  25009
 100%  25009 (longest request)

config.ru

run proc do |env|
  puts Time.now
  sleep 5
  [200, { "Content-type" => "text/plain" }, ["Hello!"]]
end

thin_output.txt

$ thin -R config.ru start
>> Thin web server (v1.3.1 codename Triple Espresso)
>> Maximum connections set to 1024
>> Listening on 0.0.0.0:3000, CTRL+C to stop
2012-02-29 00:02:03 -0300
2012-02-29 00:02:08 -0300
2012-02-29 00:02:13 -0300
2012-02-29 00:02:18 -0300
2012-02-29 00:02:23 -0300