Had to kill this on Ubuntu also. It’s eating my entire disk IO all the time making it not very usuable. For the moment, I’ve just tried turning off the "watching" and left "indexing" on.
I don’t know what "watching" or "indexing" actually does. I’m not impressed; this is not windows; having a nice GUI does not mean that you don’t have to write technical documentation.
Originally published on my old blog site.