Standart ActionController and ActionController::Metal comparison for api (rails 3.1rc5)

controller.rb

class V1Controller < ApplicationController
  
  before_filter :check_some
  
  def index
    response_hash = {:a => [1,2,3], :status => "OK"}
    respond_to do |format|
      format.xml  { render :xml => response_hash.to_xml(:root => "response", :dasherize => false, :skip_types => true) }
      format.json { render :json => response_hash, :callback => params[:callback] }
    end
  end

  private

  def check_some
  end

end








$ ab -c 1 -n 1000 -r http://127.0.0.1:3000/v1
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 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests


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

Document Path:          /v1
Document Length:        136 bytes

Concurrency Level:      1
Time taken for tests:   841.027 seconds
Complete requests:      1000
Failed requests:        5
   (Connect: 0, Receive: 5, Length: 0, Exceptions: 0)
Write errors:           0
Total transferred:      427000 bytes
HTML transferred:       136000 bytes
Requests per second:    1.19 [#/sec] (mean)
Time per request:       841.027 [ms] (mean)
Time per request:       841.027 [ms] (mean, across all concurrent requests)
Transfer rate:          0.50 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:      391  444  31.2    441     622
Processing:   257  397  33.7    399     613
Waiting:        0    0   0.0      0       0
Total:        771  841  40.8    833    1139

Percentage of the requests served within a certain time (ms)
  50%    833
  66%    844
  75%    853
  80%    861
  90%    886
  95%    921
  98%    966
  99%   1000
 100%   1139 (longest request)

metal.rb

class V2Controller < ActionController::Metal

  include AbstractController::Callbacks
  #include ActionController::Helpers
  #helper :all # By default, all helpers should be included
               
  #include ActionController::UrlFor
  #include ActionController::Redirecting
  include ActionController::Rendering
  include ActionController::Renderers::All
  #include ActionController::ConditionalGet
  include ActionController::Head
  include ActionController::RackDelegation
  include ActionController::MimeResponds
  
  before_filter :check_some

  def index
    response_hash = {:a => [1,2,3], :status => "OK"}
    respond_to do |format|
      format.xml  { render :xml => response_hash.to_xml(:root => "response", :dasherize => false, :skip_types => true) }
      format.json { render :json => response_hash, :callback => params[:callback] }
    end
  end

  private

  def check_some

  end

end








$ ab -c 1 -n 1000 -r http://127.0.0.1:3000/v2
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 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests


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

Document Path:          /v2
Document Length:        136 bytes

Concurrency Level:      1
Time taken for tests:   293.075 seconds
Complete requests:      1000
Failed requests:        2
   (Connect: 0, Receive: 2, Length: 0, Exceptions: 0)
Write errors:           0
Total transferred:      427000 bytes
HTML transferred:       136000 bytes
Requests per second:    3.41 [#/sec] (mean)
Time per request:       293.075 [ms] (mean)
Time per request:       293.075 [ms] (mean, across all concurrent requests)
Transfer rate:          1.42 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:      117  185  37.8    171     307
Processing:     0  108  37.3    123     217
Waiting:        0    0   0.0      0       0
Total:        241  293  16.7    293     423

Percentage of the requests served within a certain time (ms)
  50%    293
  66%    296
  75%    299
  80%    300
  90%    305
  95%    312
  98%    334
  99%    355
 100%    423 (longest request)