Load testing - without Varnish

gdr@gdr-desktop:~$ ab -n 10000 -c 20 http://localhost/j15/
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 localhost (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        Apache/2.2.17
Server Hostname:        localhost
Server Port:            80

Document Path:          /j15/
Document Length:        32593 bytes

Concurrency Level:      20
Time taken for tests:   459.426 seconds
Complete requests:      10000
Failed requests:        8932
   (Connect: 0, Receive: 0, Length: 8932, Exceptions: 0)
Write errors:           0
Total transferred:      329019061 bytes
HTML transferred:       325629061 bytes
Requests per second:    21.77 [#/sec] (mean)
Time per request:       918.853 [ms] (mean)
Time per request:       45.943 [ms] (mean, across all concurrent requests)
Transfer rate:          699.37 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.6      0      16
Processing:   173  918 306.9    923    2017
Waiting:      163  856 284.7    858    1877
Total:        173  918 306.9    923    2017

Percentage of the requests served within a certain time (ms)
  50%    923
  66%   1083
  75%   1163
  80%   1210
  90%   1316
  95%   1398
  98%   1480
  99%   1534
 100%   2017 (longest request)