python serialization : dict <=> str

dict_str.py

#!/usr/bin/env python
#coding=utf8

##########################################################################################
from datetime import datetime
import cPickle
import marshal
import msgpack

##########################################################################################
def do_eval(obj, limit):
	sts = datetime.now()
	for i in xrange(limit):
		ds = str(obj)
		ls = eval(ds)
		if i == 0 and obj != ls: raise RuntimeError('obj revoke error!')
	ets = datetime.now()
	print('{} eval takes {}...'.format(limit, ets-sts))
##########################################################################################
def do_pickle(obj, limit):
	sts = datetime.now()
	for i in xrange(limit):
		ds = cPickle.dumps(obj)
		ls = cPickle.loads(ds)
		if i == 0 and obj != ls: raise RuntimeError('obj revoke error!')
	ets = datetime.now()
	print('{} eval takes {}...'.format(limit, ets-sts))
##########################################################################################
def do_msgpack(obj, limit):
	sts = datetime.now()
	for i in xrange(limit):
		ds = msgpack.packb(obj)
		ls = msgpack.unpackb(ds)
		if i == 0 and obj != ls: raise RuntimeError('obj revoke error!')
	ets = datetime.now()
	print('{} eval takes {}...'.format(limit, ets-sts))
##########################################################################################
def do_marshal(obj, limit):
	sts = datetime.now()
	for i in xrange(limit):
		ds = marshal.dumps(obj)
		ls = marshal.loads(ds)
		if i == 0 and obj != ls: raise RuntimeError('obj revoke error!')
	ets = datetime.now()
	print('{} eval takes {}...'.format(limit, ets-sts))

##########################################################################################
if __name__ == '__main__':
	limit = 100000
	obj = {'inpackets': 31125504, 'tunnel_error': 32, 'isregist': False,
	       'port_line_normal': True, 'cpu_util': 82, 'outpackets': 33349120, 'type': 17,
	       'isTunnelError': True, 'mem_util': 9, 'sessions': 5, 'activation': True,
	       'inkbps': 80352, 'corp': 'NNACF', 'name': '\xec\x9e_00162',
	       'center': 'internet', 'cid': 'f1c6c46e-8fc5-411f-b0b3-8f3061a58e1c',
	       'net_util': 72, 'droppackets': 894, 'outkbps': 52596, 'time': 1441181768,
	       'eth': [
		       {'linkspeed': 0, 'inpackets': 0, 'ip': 0, 'util': 0, 'bandwidth': 0,
		        'num': 0, 'type': 'normal', 'ipsec': False, 'outbytes': 0,
		        'isLinkDown': True, 'inbytes': 0, 'dropbytes': 0, 'droppackets': 0, 'kbps': 0},
		       {'linkspeed': 3703, 'inpackets': 257630, 'ip': 4578, 'util': 75,
		        'bandwidth': 78828262, 'num': 730, 'type': 'normal', 'ipsec': False,
		        'outbytes': 5545400, 'isLinkDown': False, 'inbytes': 4139600,
		        'dropbytes': 703, 'droppackets': 4, 'kbps': 891},
		       {'linkspeed': 8571, 'inpackets': 143510, 'ip': 3835, 'util': 32,
		        'bandwidth': 90670011, 'num': 653, 'type': 'normal', 'ipsec': False,
		        'outbytes': 6588100, 'isLinkDown': False, 'inbytes': 1232100,
		        'dropbytes': 648, 'droppackets': 8, 'kbps': 4213},
		       {'linkspeed': 0, 'inpackets': 0, 'ip': 0, 'util': 0, 'bandwidth': 0,
		        'num': 0, 'type': 'normal', 'ipsec': False, 'outbytes': 0,
		        'isLinkDown': True, 'inbytes': 0, 'dropbytes': 0, 'droppackets': 0,
		        'kbps': 0},
		       {'linkspeed': 29801, 'inpackets': 588020, 'ip': 1952, 'util': 30,
		        'bandwidth': 83466247, 'num': 581, 'type': 'normal', 'ipsec': False,
		        'outbytes': 9945500, 'isLinkDown': False, 'inbytes': 3435800,
		        'dropbytes': 647, 'droppackets': 6, 'kbps': 1092},
		       {'linkspeed': 0, 'inpackets': 0, 'ip': 0, 'util': 0, 'bandwidth': 0,
		        'num': 0, 'type': 'normal', 'ipsec': False, 'outbytes': 0,
		        'isLinkDown': True, 'inbytes': 0, 'dropbytes': 0, 'droppackets': 0,
		        'kbps': 0},
		       {'linkspeed': 14359, 'inpackets': 557100, 'ip': 2921, 'util': 32,
		        'bandwidth': 18209429, 'num': 40, 'type': 'normal', 'ipsec': False,
		        'outbytes': 1155200, 'isLinkDown': False, 'inbytes': 8787100,
		        'dropbytes': 906, 'droppackets': 2, 'kbps': 5829},
		       {'linkspeed': 6704, 'inpackets': 913340, 'ip': 2405, 'util': 73,
		        'bandwidth': 884716, 'num': 86, 'type': 'normal', 'ipsec': False,
		        'outbytes': 3145900, 'isLinkDown': False, 'inbytes': 5141200,
		        'dropbytes': 493, 'droppackets': 0, 'kbps': 11661}], 'dropkbps': 1}
	do_eval(obj, limit)
	do_pickle(obj, limit)
	do_msgpack(obj, limit)
	do_marshal(obj, limit)