title: Vim taking really long time to open Ruby files
body: <p>I've noticed that Vim is taking a really long time to open Ruby and ERB (Embedded Ruby) files. I profiled my startup time and these the interesting lines (the full profile is at the bottom if you want   to see it):</p>
  
  <pre><code>32980.181  32011.917  32011.917: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/ruby.vim
  32980.516  32035.414  022.871: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/eruby.vim
  </code></pre>
  
  <p>As you can see it takes a long time (times are in "msec" apparently) to load ftdetect for Ruby and ERuby. Compare this to ftdetect for HTML and the time it takes to load my .vimrc:</p>
  
  <pre><code>952.223  000.626  000.626: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/html.vim
  738.536  612.248  534.785: sourcing $HOME/.vimrc
  </code></pre>
  
  <p>Is this normal and is there anything I can do about it? It's pretty infuriating to have to wait ~33 seconds to open a file.</p>
  
  <pre><code>times in msec
   clock   self+sourced   self:  sourced script
   clock   elapsed:              other lines
  
  000.022  000.022: --- VIM STARTING ---
  012.064  012.042: Allocated generic buffers
  012.910  000.846: locale set
  013.186  000.276: clipboard setup
  013.203  000.017: window checked
  033.918  020.715: inits 1
  034.697  000.779: parsing arguments
  034.716  000.019: expanding arguments
  077.784  043.068: shell init
  079.520  001.736: Termcap init
  079.562  000.042: inits 2
  080.186  000.624: init highlight
  179.889  001.991  001.991: sourcing /Users/davidtuite/.vim/autoload/pathogen.vim
  564.261  000.178  000.178: sourcing /Users/davidtuite/.vim/filetype.vim
  632.475  000.389  000.389: sourcing /Users/davidtuite/.vim/bundle/jst/ftdetect/jst.vim
  633.141  055.478  055.089: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/filetype.vim
  660.587  000.236  000.236: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin.vim
  661.081  000.247  000.247: sourcing /Users/davidtuite/.vim/filetype.vim
  661.408  000.041  000.041: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/filetype.vim
  673.005  000.208  000.208: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent.vim
  699.170  000.901  000.901: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
  699.550  007.236  006.335: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/synload.vim
  699.669  008.305  001.069: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syntax.vim
  700.763  000.561  000.561: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
  715.774  000.497  000.497: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
  716.658  000.452  000.452: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/syncolor.vim
  722.467  010.218  009.269: sourcing /Users/davidtuite/.vim/bundle/solarized/colors/solarized.vim
  738.536  612.248  534.785: sourcing $HOME/.vimrc
  738.593  046.159: sourcing vimrc file(s)
  784.522  000.859  000.859: sourcing /Users/davidtuite/.vim/bundle/ctrlp/autoload/ctrlp/mrufiles.vim
  785.378  045.922  045.063: sourcing /Users/davidtuite/.vim/bundle/ctrlp/plugin/ctrlp.vim
  816.261  000.454  000.454: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/getscriptPlugin.vim
  818.593  000.792  000.792: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/gzip.vim
  820.050  000.921  000.921: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/matchparen.vim
  830.405  002.463  002.463: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/netrwPlugin.vim
  843.038  000.145  000.145: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/rrhelper.vim
  850.425  000.293  000.293: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/spellfile.vim
  851.617  000.671  000.671: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/tarPlugin.vim
  852.558  000.509  000.509: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/tohtml.vim
  853.470  000.599  000.599: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/vimballPlugin.vim
  854.255  000.463  000.463: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/plugin/zipPlugin.vim
  854.362  062.537: loading plugins
  854.375  000.013: inits 3
  875.931  021.556: reading viminfo
  875.995  000.064: setting raw mode
  876.010  000.015: start termcap
  876.062  000.052: clearing screen
  952.223  000.626  000.626: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/html.vim
  32980.181  32011.917  32011.917: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/ruby.vim
  32980.516  32035.414  022.871: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/ftplugin/eruby.vim
  33007.912  000.688  000.688: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent/ruby.vim
  33024.997  001.804  001.804: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent/html.vim
  33025.207  025.843  023.351: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/indent/eruby.vim
  33067.541  000.929  000.929: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/javascript.vim
  33085.205  004.486  004.486: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/vb.vim
  33088.445  002.575  002.575: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/css.vim
  33089.314  039.262  031.272: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/html.vim
  33106.920  003.463  003.463: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/ruby.vim
  33107.112  064.122  021.397: sourcing /usr/local/Cellar/vim/7.3.266/share/vim/vim73/syntax/eruby.vim
  33107.888  107.447: opening buffers
  33108.114  000.226: BufEnter autocommands
  33108.117  000.003: editing files in windows
  33108.319  000.202: VimEnter autocommands
  33108.320  000.001: before starting main loop
  33127.031  018.711: first screen update
  33127.033  000.002: --- VIM STARTED ---
  </code></pre>