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June 5, 2017 17:10
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Benchmark duration: 886.8774709701538 seconds | |
Command line: ['03.primes-v1.py'] | |
Total duration: 886.878s | |
File: 03.primes-v1.py | |
File duration: 886.878s (100.00%) | |
Line #| Hits| Time| Time per hit| %|Source code | |
------+----------+-------------+-------------+-------+----------- | |
1| 2| 7.10487e-05| 3.55244e-05| 0.00%|import time | |
2| 0| 0| 0| 0.00%| | |
3| 0| 0| 0| 0.00%| | |
4| 41| 0.00029397| 7.17e-06| 0.00%|def primes(n): | |
5| 40| 0.000231266| 5.78165e-06| 0.00%| if n == 2: | |
6| 0| 0| 0| 0.00%| return [2] | |
7| 40| 0.000178337| 4.45843e-06| 0.00%| elif n < 2: | |
8| 0| 0| 0| 0.00%| return [] | |
9| 40| 0.000188112| 4.70281e-06| 0.00%| s = [] | |
10| 39999960| 159.268| 3.98171e-06| 17.96%| for i in range(3, n+1): | |
11| 39999920| 152.924| 3.82312e-06| 17.24%| if i % 2 != 0: | |
12| 19999960| 76.2135| 3.81068e-06| 8.59%| s.append(i) | |
13| 40| 0.00147367| 3.68416e-05| 0.00%| mroot = n ** 0.5 | |
14| 40| 0.000319004| 7.9751e-06| 0.00%| half = (n + 1) / 2 - 1 | |
15| 40| 0.000220776| 5.51939e-06| 0.00%| i = 0 | |
16| 40| 0.000243902| 6.09756e-06| 0.00%| m = 3 | |
17| 20000| 0.0777466| 3.88733e-06| 0.01%| while m <= mroot: | |
18| 19960| 0.0774016| 3.87784e-06| 0.01%| if s[i]: | |
19| 6680| 0.0278566| 4.17015e-06| 0.00%| j = (m * m - 3) / 2 | |
20| 6680| 0.0275929| 4.13067e-06| 0.00%| s[j] = 0 | |
21| 32449400| 114.858| 3.5396e-06| 12.95%| while j < half: | |
22| 32442720| 120.841| 3.72475e-06| 13.63%| s[j] = 0 | |
23| 32442720| 114.432| 3.5272e-06| 12.90%| j += m | |
24| 19960| 0.0749919| 3.75711e-06| 0.01%| i = i + 1 | |
25| 19960| 0.0765574| 3.83554e-06| 0.01%| m = 2 * i + 3 | |
26| 40| 0.000222206| 5.55515e-06| 0.00%| l = [2] | |
27| 20000000| 68.8031| 3.44016e-06| 7.76%| for x in s: | |
28| 19999960| 67.9391| 3.39696e-06| 7.66%| if x: | |
29| 3139880| 10.9989| 3.50295e-06| 1.24%| l.append(x) | |
30| 40| 0.000155687| 3.89218e-06| 0.00%| return l | |
31| 0| 0| 0| 0.00%| | |
32| 0| 0| 0| 0.00%| | |
33| 2| 8.10623e-06| 4.05312e-06| 0.00%|def benchmark(): | |
34| 1| 5.00679e-06| 5.00679e-06| 0.00%| start = time.time() | |
35| 41| 0.00101089| 2.4656e-05| 0.00%| for _ in xrange(40): | |
36| 40| 0.232263| 0.00580657| 0.03%| count = len(primes(1000000)) | |
(call)| 40| 886.644| 22.1661| 99.97%|# 03.primes-v1.py:4 primes | |
37| 1| 5.96046e-06| 5.96046e-06| 0.00%| end = time.time() | |
38| 1| 0.000678062| 0.000678062| 0.00%| print "Benchmark duration: %r seconds" % (end-start) | |
39| 0| 0| 0| 0.00%| | |
40| 0| 0| 0| 0.00%| | |
41| 1| 5.79357e-05| 5.79357e-05| 0.00%|benchmark() | |
(call)| 1| 886.878| 886.878|100.00%|# 03.primes-v1.py:33 benchmark |
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