转载 DNS负载均衡技术 收藏

reference:
http://blog.csdn.net/flynetcn/archive/2009/01/08/3733574.aspx

cost time:24s
('202.108.33.94', 0) 625
('202.108.33.77', 0) 625
('202.108.33.70', 0) 625
('202.108.33.95', 0) 625
('202.108.33.74', 0) 625
('202.108.33.78', 0) 625
('202.108.33.71', 0) 625
('202.108.33.96', 0) 625
('202.108.33.75', 0) 625
('202.108.33.98', 0) 625
('202.108.33.79', 0) 625
('202.108.33.76', 0) 625
('202.108.33.72', 0) 625
('202.108.33.97', 0) 625
('202.108.33.99', 0) 625
('202.108.33.73', 0) 625

#!usr/bin/env python
#encoding=utf8
"""
test dns parser cost time
"""

import sys,socket
from datetime import datetime
s=datetime.now()
#result=socket.getaddrinfo("www.sina.com.cn",None)
dict={}
for i in xrange(0,10000):
    result=socket.getaddrinfo("www.sina.com.cn",None)
    result=result[0][4]
    if result not in dict:
        dict[result]=1
    else:
        dict[result]=dict[result]+1
    #this is error
    #result=socket.getaddrinfo("http://www.china-pub.com/1902284",None)
   
#resut=socket.gethostbyname("www.sina.com.cn")
e=datetime.now()
print "cost time:%ss"%(e-s).seconds
#print result[0][4]

#print "haah"
for k,v in dict.iteritems():
    print k,v