Once again, I've added some package that makes a 20k-line/1 mg .org file kill Emacs' performance and max out my CPU. Here's my ELPA installed:

  auctex             11.88.2       installed             Integrated environment for *TeX*
  dash               20141220.1452 installed             A modern list library for Emacs
  epl                20140823.609  installed             Emacs Package Library
  exec-path-from-... 20141212.846  installed             Get environment variables such as $PATH from the shell
  git-commit-mode    20141014.1634 installed             Major mode for editing git commit messages
  git-rebase-mode    20150122.1114 installed             Major mode for editing git rebase files
  gnuplot            20141231.1337 installed             drive gnuplot from within emacs
  gnuplot-mode       20131203.2159 installed             Major mode for editing gnuplot scripts
  graphviz-dot-mode  20140303.1301 installed             Mode for the dot-language used by graphviz (att).
  htmlize            1.39          installed             Convert buffer text and decorations to HTML.
  ido-ubiquitous     20141210.1353 installed             Use ido (nearly) everywhere.
  magit              20150124.930  installed             control Git from Emacs
  ob-sml             0.2           installed             org-babel functions for template evaluation
  org                20150202      installed             Outline-based notes management and organizer
  org-plus-contrib   20150202      installed             Outline-based notes management and organizer
  paredit            20150126.155  installed             minor mode for editing parentheses
  pkg-info           20140610.630  installed             Information about packages
  projectile         20150201.1134 installed             Manage and navigate projects in Emacs easily
  queue              0.1.1         installed             Queue data structure
  s                  20140910.334  installed             The long lost Emacs string manipulation library.
  smex               20141210.1422 installed             M-x interface with Ido-style fuzzy matching.
  sml-mode           6.5           installed             Major mode for editing (Standard) ML
  tagedit            20141021.2139 installed