Created
November 19, 2013 03:14
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comparison between cffi_re2 and builtin re module
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#!/usr/bin/env python | |
import sys | |
import time | |
def test_re(): | |
print 'test python re' | |
import re | |
arr = [] | |
with open('regex.txt') as f: | |
for line in f: | |
s = line.rstrip('\r\n') | |
s = s.decode('utf-8') | |
arr.append(re.compile(s)) | |
t0 = time.time() | |
count_match = 0 | |
with open('test_str.txt') as f: | |
for line in f: | |
line = line.decode('utf-8') | |
for sobj in arr: | |
m = sobj.search(line) | |
if m: | |
count_match += 1 | |
eltime = time.time() - t0 | |
print 'python re', eltime | |
print 'count match', count_match | |
return eltime | |
def test_cffi(): | |
print 'test cffi' | |
import cffi_re2 | |
arr = [] | |
with open('regex.txt') as f: | |
for line in f: | |
s = line.rstrip('\r\n') | |
arr.append(cffi_re2.compile(s)) | |
t0 = time.time() | |
count_match = 0 | |
with open('test_str.txt') as f: | |
for line in f: | |
for sobj in arr: | |
m = sobj.search(line) | |
if m: | |
count_match += 1 | |
eltime = time.time() - t0 | |
print 'cffi re2', eltime | |
print 'count match', count_match | |
return eltime | |
if __name__ == '__main__': | |
repeat = 3 | |
if len(sys.argv) >= 2 and sys.argv[1] == 'cffi': | |
test_cffi() | |
total = 0 | |
for i in xrange(repeat): | |
total += test_cffi() | |
print 'avg time', total * 1.0 / repeat | |
else: | |
test_re() | |
total = 0 | |
for i in xrange(repeat): | |
total += test_re() | |
print 'avg time', total * 1.0 / repeat |
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