单线程
import time
def html(url):
time.sleep(0.1)
print(url)
if __name__=='__main__':
start_time = time.time()
for i in range(1,1001):
i = 'http://www.cnblogs.com/uncleyong/%s'%i
html(i)
print('---------------')
print('ok')
stop_time = time.time()
print(stop_time - start_time)
---------------
ok
100.0597231388092
多进程
import multiprocessing
import time
def html(url):
time.sleep(0.1)
print(url)
if __name__=='__main__':
start_time = time.time()
p_list = []
for i in range(1,1001):
i = 'http://www.cnblogs.com/uncleyong/%s'%i
p = multiprocessing.Process(target=html, args=(i,))
p_list.append(p)
p.start()
for p in p_list:
p.join()
print('---------------')
print('ok')
stop_time = time.time()
print(stop_time - start_time)
---------------
ok
80.07257986068726
多线程
import threading
import time
def html(url):
time.sleep(0.1)
print(url)
if __name__=='__main__':
start_time = time.time()
t_list = []
for i in range(1,1001):
i = 'http://www.cnblogs.com/uncleyong/%s'%i
t = threading.Thread(target=html, args=(i,))
t_list.append(t)
t.start()
for t in t_list:
t.join()
print('---------------')
print('ok')
stop_time = time.time()
print(stop_time - start_time)
---------------
ok
0.23501324653625488
协程
from gevent import monkey;monkey.patch_all()
import gevent
import time
def html(url):
time.sleep(0.1)
print(url)
if __name__=='__main__':
start_time = time.time()
g_list = []
for i in range(1,1001):
i = 'http://www.cnblogs.com/uncleyong/%s'%i
g = gevent.spawn(html, i)
g_list.append(g)
for g in g_list:
g.join()
print('---------------')
print('ok')
stop_time = time.time()
print(stop_time - start_time)
---------------
ok
0.14500832557678223
运行速度:协程 > 多线程 > 多进程 > 单线程
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