gistfile1.py

#!/usr/bin/env python 
import time

import simplejson
import cjson
import zlib

import string
import random

chars = string.ascii_letters + string.digits

def get_random_string(s):
    return ''.join(random.sample(chars, s))

def get_random_records(num=5000):
    data = []
    for x in xrange(num):
        data.append({
            'key':    get_random_string(15),
            'value':  get_random_string(20),
            'first':  get_random_string(15),
            'last':   get_random_string(15),
            'type':   random.choice(["A", "CNAME"]),
            'ttl':    random.choice([86400,3600,60]),
        })
    return data

def ser_json():
    j = simplejson.dumps(raw)
    return len(j)

def ser_json_compressed():
    j = simplejson.dumps(raw)
    return len(zlib.compress(j))

def serde_json():
    j = simplejson.dumps(raw)
    simplejson.loads(j)

def ser_cjson():
    j = cjson.encode(raw)
    return len(j)

def ser_cjson_compressed():
    j = cjson.encode(raw)
    return len(zlib.compress(j))

def serde_cjson():
    j = cjson.encode(raw)
    cjson.decode(j)


def t(f):
    s = time.clock()
    ret = f()
    e = time.clock()
    return e-s, ret

if __name__ == "__main__":
    x, raw = t(get_random_records)
    print len(raw), 'total records (%0.3fs)' % x

    print

    print 'ser_json            (%0.3fs) %s bytes' % t(ser_json)
    print 'ser_cjson            (%0.3fs) %s bytes' % t(ser_cjson)

    print

    print 'ser_json_compressed   (%0.3fs) %s bytes' % t(ser_json_compressed)
    print 'ser_cjson_compressed   (%0.3fs) %s bytes' % t(ser_cjson_compressed)

    print

    print 'serde_json          (%0.3fs)' % t(serde_json)[0]
    print 'serde_cjson          (%0.3fs)' % t(serde_cjson)[0]