Python中的ujson模块

听说ujson比json模块快了很多，特来一试：

# -*- coding: utf-8 -*-
import json
import ujson
import time

def cost_time(func):

    def inner(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        stop_time = time.time()
        print stop_time - start_time
        # print result
        return result

    return inner

a = {}
for i in xrange(1, 1000000):
    a[i] = 1

@cost_time
def json_dumps(obj):
    return json.dumps(obj)

@cost_time
def ujson_dumps(obj):
    return ujson.dumps(obj)

r1 = json_dumps(a)
r2 = ujson_dumps(a)

# 结果
0.245149850845
0.115290880203

果然快了一倍多