1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
|
from __future__ import absolute_import, print_function
import sys
sys.path.insert(0,'..')
import inline_tools
import time
def print_compare(n):
print('Printing %d integers:' % n)
t1 = time.time()
for i in range(n):
print(i, end=' ')
t2 = time.time()
py = (t2-t1)
# get it in cache
inline_tools.inline('printf("%d",i);',['i'])
t1 = time.time()
for i in range(n):
inline_tools.inline('printf("%d",i);',['i'])
t2 = time.time()
print(' speed in python:', py)
print(' speed in c:',(t2 - t1))
print(' speed up: %3.2f' % (py/(t2-t1)))
def cout_example(lst):
# get it in cache
i = lst[0]
inline_tools.inline('std::cout << i << std::endl;',['i'])
t1 = time.time()
for i in lst:
inline_tools.inline('std::cout << i << std::endl;',['i'])
t2 = time.time()
if __name__ == "__main__":
n = 3000
print_compare(n)
print("calling cout with integers:")
cout_example([1,2,3])
print("calling cout with strings:")
cout_example(['a','bb', 'ccc'])
|