title: Asset managing with Rails 3 (on Heroku) (Jammit, AssetHat, Rack PageSpeed)
body: <p>I am interested in the pros and cons of the different tools for managing assets in Rails 3.0.x (especially on Heroku).</p>
  
  <p>There are already some <a href="https://stackoverflow.com/questions/1889837/best-way-to-combine-and-minify-js-css-on-heroku">older</a> questions regarding this topic, but in the meanwhile there are some new tools available.</p>
  
  <p>I am especially interested in these tools:</p>
  
  <ul>
  <li><a href="https://github.com/documentcloud/jammit/" rel="nofollow noreferrer">Jammit</a></li>
  <li><a href="http://mintdigital.github.com/asset_hat/" rel="nofollow noreferrer">AssetHat</a></li>
  <li><a href="http://rack-pagespeed.heroku.com/" rel="nofollow noreferrer">Rack PageSpeed</a></li>
  </ul>
  
  <p>Jammit seems to can do everything that AssetHat can do and is also longer available. So where does AssetHat fit in?</p>
  
  <p>Rack PageSpeed seems to do everything on the fly by directly working on the server response. Did you experience any performance issues by doing that? Would you recommend it over the other two solutions?</p>