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

you may also want to look in to python's profiling magic command %prunwhich gives something like -

def sum_of_lists(N):
    total = 0
    for i in range(5):
        L = [j ^ (j >> i) for j in range(N)]
        total += sum(L)
    return total

then

%prun sum_of_lists(1000000)

will return

14 function calls in 0.714 seconds  

Ordered by: internal time      

ncalls  tottime  percall  cumtime  percall filename:lineno(function)
    5    0.599    0.120    0.599    0.120 :4()
    5    0.064    0.013    0.064    0.013 {built-in method sum}
    1    0.036    0.036    0.699    0.699 :1(sum_of_lists)
    1    0.014    0.014    0.714    0.714 :1()
    1    0.000    0.000    0.714    0.714 {built-in method exec}

I find it useful when working with large chunks of code.