On Wed, Jan 14, 2015 at 2:02 AM, Jean-Baptiste Braun
<jbaptiste.br...@gmail.com> wrote:
> What I don't understand is the ratio between test 2 / 4 and test 1 / 3.
>
> Let 0.0229 sec be the execution time to read a bytecode (1st test).
> Executing two times that bytecode takes 0.042 sec (test 3), which looks
> coherent.
>
> Let 11.6 sec be the execution time to call the global exec, parse, do some
> stuff and read a bytecode (test 2). I'm trying to understand why does doing
> the same thing and reading one more bytecode is much longer (15.7 sec) in
> comparison.
You've also given it twice as much code to parse and compile.
C:\Users\Ian>python -m timeit "compile('1 + 1', '', 'exec')"
100000 loops, best of 3: 16.8 usec per loop
C:\Users\Ian>python -m timeit "compile('1 + 1; 1 + 1', '', 'exec')"
10000 loops, best of 3: 22.4 usec per loop
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