Summary

Overhead with transaction traces enabled: 18%
Overhead without transaction traces enabled: 7%

With RPM and no transaction traces

$ ab -c 4 -n 800 http://staging.weplay.com/users/LeBronJames
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 staging.weplay.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Finished 800 requests


Server Software:        nginx
Server Hostname:        staging.weplay.com
Server Port:            80

Document Path:          /users/LeBronJames
Document Length:        47123 bytes

Concurrency Level:      4
Time taken for tests:   170.103 seconds
Complete requests:      800
Failed requests:        797
   (Connect: 0, Receive: 0, Length: 797, Exceptions: 0)
Write errors:           0
Total transferred:      38129324 bytes
HTML transferred:       37571689 bytes
Requests per second:    4.70 [#/sec] (mean)
Time per request:       850.515 [ms] (mean)
Time per request:       212.629 [ms] (mean, across all concurrent requests)
Transfer rate:          218.90 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        9   26  75.5     17    1007
Processing:   260  822 304.3    859    2720
Waiting:      166  630 259.9    665    1271
Total:        270  848 316.9    882    2746

Percentage of the requests served within a certain time (ms)
  50%    882
  66%    982
  75%   1037
  80%   1083
  90%   1207
  95%   1333
  98%   1580
  99%   1814
 100%   2746 (longest request)

With RPM and transaction traces

$ ab -c 4 -n 800 http://staging.weplay.com/users/LeBronJames
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 staging.weplay.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Finished 800 requests


Server Software:        nginx
Server Hostname:        staging.weplay.com
Server Port:            80

Document Path:          /users/LeBronJames
Document Length:        47016 bytes

Concurrency Level:      4
Time taken for tests:   191.926 seconds
Complete requests:      800
Failed requests:        798
   (Connect: 0, Receive: 0, Length: 798, Exceptions: 0)
Write errors:           0
Total transferred:      38136849 bytes
HTML transferred:       37579216 bytes
Requests per second:    4.17 [#/sec] (mean)
Time per request:       959.629 [ms] (mean)
Time per request:       239.907 [ms] (mean, across all concurrent requests)
Transfer rate:          194.05 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        9   45 138.6     26    1990
Processing:   270  913 339.7    915    4013
Waiting:      178  657 276.7    684    1935
Total:        283  958 369.5    951    4040

Percentage of the requests served within a certain time (ms)
  50%    951
  66%   1074
  75%   1148
  80%   1220
  90%   1384
  95%   1543
  98%   1905
  99%   2120
 100%   4040 (longest request)

Without RPM

$ ab -c 4 -n 800 http://staging.weplay.com/users/LeBronJames
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 staging.weplay.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Finished 800 requests


Server Software:        nginx
Server Hostname:        staging.weplay.com
Server Port:            80

Document Path:          /users/LeBronJames
Document Length:        46935 bytes

Concurrency Level:      4
Time taken for tests:   157.987 seconds
Complete requests:      800
Failed requests:        795
   (Connect: 0, Receive: 0, Length: 795, Exceptions: 0)
Write errors:           0
Total transferred:      38141030 bytes
HTML transferred:       37583426 bytes
Requests per second:    5.06 [#/sec] (mean)
Time per request:       789.935 [ms] (mean)
Time per request:       197.484 [ms] (mean, across all concurrent requests)
Transfer rate:          235.76 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        9   34 111.3     23    1015
Processing:   248  754 425.4    737    8261
Waiting:      152  523 257.7    533    1759
Total:        262  788 450.7    761    8288

Percentage of the requests served within a certain time (ms)
  50%    761
  66%    891
  75%    969
  80%   1029
  90%   1195
  95%   1424
  98%   1744
  99%   2092
 100%   8288 (longest request)