count

J. Cliff Dyer jcd at sdf.lonestar.org
Thu Jul 9 17:15:41 CEST 2009


Bearophile wins!  (This only times the loop itself.  It doesn't check
for __len__)

summer:5
0:00:00.000051
bearophile:5
0:00:00.000009
summer:50
0:00:00.000030
bearophile:50
0:00:00.000013
summer:500
0:00:00.000077
bearophile:500
0:00:00.000053
summer:5000
0:00:00.000575
bearophile:5000
0:00:00.000473
summer:50000
0:00:00.005583
bearophile:50000
0:00:00.004625
summer:500000
0:00:00.055834
bearophile:500000
0:00:00.046137
summer:5000000
0:00:00.426734
bearophile:5000000
0:00:00.349573
summer:50000000
0:00:04.180920
bearophile:50000000
0:00:03.652311
summer:500000000
0:00:42.647885
bearophile: 500000000
0:00:35.190550

On Thu, 2009-07-09 at 04:04 -0700, Bearophile wrote:
> Paul Rubin:
> > print x, sum(1 for _ in g)
> 
> Don't use that, use my function :-) If g has a __len__ you are wasting
> time. And sum(1 ...) is (on my PC) slower.
> 
> 
> J. Clifford Dyer:
> > if __name__ == '__main__':
> >     test_func(summer, 10000000)
> >     test_func(tupler, 10000000)
> >     test_func(summer, 100000000)
> >     test_func(tupler, 100000000)
> 
> Have you forgotten my function?
> 
> Bye,
> bearophile




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