On 29/06/2016 14:35, Chris Angelico wrote:
On Wed, Jun 29, 2016 at 11:24 PM, BartC <b...@freeuk.com> wrote:
I used this little benchmark:
def fn():
n=0
for i in range(1000000):
n+=i
for k in range(100):
fn()
Add, up the top:
try: range = xrange
except NameError: pass
Otherwise, your Py2 tests are constructing a million-element list,
which is a little unfair.
It made little difference (21 seconds instead of 20 seconds).
But that was on Windows. I remember that Python was much more sluggish
on Windows than under Ubuntu on the same machine. (Maybe the Windows
version was 32-bits or something.)
Trying it on Ubuntu, Py2 takes 6 seconds (using xrange otherwise it's 9
seconds) , while pypy (2.7) manages 0.35 seconds.
pypy normally excels with such loops, but I recall also that it had some
trouble with this particular benchmark, which this version must have fixed.
--
Bartc
--
https://mail.python.org/mailman/listinfo/python-list
