ipython-contrib/IPython-notebook-extensions — pull request #77 by jcjaskula (2014-06-11 21:08:13+00:00)
Title: Show when and how long a cell has been executed

This extension displays when the last execution of
a cell occurred and how long it took. This information is displayed in a box attached at the bottom of the input area. It can be hide by double clicking on the box or using the option in the cell menu.