I was editing a LaTeX file using VIM and noticed that the scrolling is quite slow. Here is how I troubleshoot it.

Vim has great built-in spell checking. Even better, when editing source code files, it is smart enough to know not do spell checking in source code, which is quite neat. However, it will still do spell checking for string literals. Most of the times, this is not desired. This post shows how to tell VIM only do spell checking in comments when editing code files.

It's extremely useful to - Have a virtually unlimited undo history, and - Have it persisted even after exiting VIM, and - Better, even have it synchronized across all your working machines using Dropbox.

If you're Vim user, then you must try Vimium. It makes your browsing much much comfortable!

The goal we want to accomplish here is, jumping to a function definition (maybe in another file,) finding out where a symbol is defined, finding out what function(s) call current function and what functions are called from this function, ALL WITHOUT LEAVING VIM.

There are many ways to do this, as listed in vim wiki.