Simple way to measure cell execution time in ipython notebook

Question

I would like to get the time spent on the cell execution in addition to the original output from cell.

To this end, I tried %%timeit -r1 -n1 but it does

Answer 1

When in trouble what means what:

?%timeit or ??timeit

To get the details:

Usage, in line mode:
  %timeit [-n -r [-t|-c] -q -p
 -o] statement
or in cell mode:
  %%timeit [-n -r [-t|-c] -q -p
 -o] setup_code
  code
  code...

Time execution of a Python statement or expression using the timeit
module.  This function can be used both as a line and cell magic:

- In line mode you can time a single-line statement (though multiple
  ones can be chained with using semicolons).

- In cell mode, the statement in the first line is used as setup code
  (executed but not timed) and the body of the cell is timed.  The cell
  body has access to any variables created in the setup code.