robbyrussell/oh-my-zsh — pull request #2371 by kermit666 (2013-12-22 17:27:33+00:00)
Title: too many plugins = slow init warning

This kind of warning would have helped me a lot. I made a mistake of blindly adding every plugin with a familiar name - got me into a state where my shell took a significant time to start and it wasn't obvious to me what was the cause - zsh, oh-my-zsh, some of the stuff I put in my rc file myself... It turned out that the plugins I had enabled introduced the most overhead.