title: Why the ember-cli is so slow
body: <p>I migrated my grunt project to ember-cli, I found the time from file modification to liveload completion was so long, about 10 minutes. </p>
  
  <p>After I installed ember-cli-windows, ember-cli-windows-addon, no obvious prompt was gained. The following is one example output after ember-cli-windows, ember-cli-windows-addon installed:</p>
  
  <pre><code>file changed routes\services.js
  
  Build successful - 382781ms.
  
  Slowest Trees                                 | Total
  ----------------------------------------------+---------------------
  Babel                                         | 82175ms
  Concat: Vendor                                | 75980ms
  Funnel: App JS Files                          | 57393ms
  JSHint app- QUnit                             | 49491ms
  ES6: App Tree                                 | 41827ms
  
  Slowest Trees (cumulative)                    | Total (avg)
  ----------------------------------------------+---------------------
  Babel (2)                                     | 82394ms (41197 ms)
  Concat: Vendor (1)                            | 75980ms
  Funnel: App JS Files (1)                      | 57393ms
  JSHint app- QUnit (1)                         | 49491ms
  ES6: App Tree (1)                             | 41827ms
  </code></pre>
  
  <p>By contrast, the build process can be finished in 2~3 seconds in grunt project after file modification. </p>
  
  <p>I use windows 7.</p>