Completely unscientific testing of module_implements cache and loadcache.

ab

// Execution time

baseline          => 100%
module_implements =>  37%
all cache         =>  24%

// module_implements cache + user_load static, user_load persistent and node_load persistent cache

new-host-3:DrupalBench gpratt$ ./drplb.sh -n 5 -c 2 http://vbox.allplayers.com/users/glenn
Drupal Login: glenn
Password: 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 vbox.allplayers.com (be patient).....done


Server Software:        Apache/2.2.14
Server Hostname:        vbox.allplayers.com
Server Port:            80

Document Path:          /users/glenn
Document Length:        79537 bytes

Concurrency Level:      2
Time taken for tests:   17.731 seconds
Complete requests:      5
Failed requests:        4
   (Connect: 0, Receive: 0, Length: 4, Exceptions: 0)
Write errors:           0
Total transferred:      399895 bytes
HTML transferred:       397825 bytes
Requests per second:    0.28 [#/sec] (mean)
Time per request:       7092.287 [ms] (mean)
Time per request:       3546.144 [ms] (mean, across all concurrent requests)
Transfer rate:          22.03 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   0.9      2       2
Processing:  5520 5986 313.8   6104    6311
Waiting:     5518 5980 309.9   6099    6298
Total:       5520 5987 314.1   6105    6313
WARNING: The median and mean for the initial connection time are not within a normal deviation
        These results are probably not that reliable.

Percentage of the requests served within a certain time (ms)
  50%   5976
  66%   6234
  75%   6234
  80%   6313
  90%   6313
  95%   6313
  98%   6313
  99%   6313
 100%   6313 (longest request)

// module_implements cache

new-host-3:DrupalBench gpratt$ ./drplb.sh -n 5 -c 2 http://vbox.allplayers.com/users/glenn
Drupal Login: glenn
Password: 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 vbox.allplayers.com (be patient).....done


Server Software:        Apache/2.2.14
Server Hostname:        vbox.allplayers.com
Server Port:            80

Document Path:          /users/glenn
Document Length:        79592 bytes

Concurrency Level:      2
Time taken for tests:   27.088 seconds
Complete requests:      5
Failed requests:        4
   (Connect: 0, Receive: 0, Length: 4, Exceptions: 0)
Write errors:           0
Total transferred:      400006 bytes
HTML transferred:       397936 bytes
Requests per second:    0.18 [#/sec] (mean)
Time per request:       10835.263 [ms] (mean)
Time per request:       5417.632 [ms] (mean, across all concurrent requests)
Transfer rate:          14.42 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   0.2      1       1
Processing:  8263 9001 604.2   9180    9655
Waiting:     8261 8994 601.4   9171    9650
Total:       8264 9001 604.0   9181    9655

Percentage of the requests served within a certain time (ms)
  50%   8763
  66%   9598
  75%   9598
  80%   9655
  90%   9655
  95%   9655
  98%   9655
  99%   9655
 100%   9655 (longest request)

// Baseline
new-host-3:DrupalBench gpratt$ ./drplb.sh -n 5 -c 2 http://vbox.allplayers.com/users/glenn
Drupal Login: glenn
Password: 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 vbox.allplayers.com (be patient).....done


Server Software:        Apache/2.2.14
Server Hostname:        vbox.allplayers.com
Server Port:            80

Document Path:          /users/glenn
Document Length:        79500 bytes

Concurrency Level:      2
Time taken for tests:   72.217 seconds
Complete requests:      5
Failed requests:        4
   (Connect: 0, Receive: 0, Length: 4, Exceptions: 0)
Write errors:           0
Total transferred:      399807 bytes
HTML transferred:       397737 bytes
Requests per second:    0.07 [#/sec] (mean)
Time per request:       28886.908 [ms] (mean)
Time per request:       14443.454 [ms] (mean, across all concurrent requests)
Transfer rate:          5.41 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    2   1.3      2       3
Processing: 23492 24351 748.2  24771   25107
Waiting:    23487 24346 747.0  24765   25102
Total:      23492 24353 748.0  24773   25108

Percentage of the requests served within a certain time (ms)
  50%  24647
  66%  24898
  75%  24898
  80%  25108
  90%  25108
  95%  25108
  98%  25108
  99%  25108
 100%  25108 (longest request)