Python JSON encode/decode benchmark for short strings

json-benchmark.py

#!/usr/bin/env python

import time as t
import ujson as u
import simplejson as s
import json as j

N = 100000

x = [{"asderdgaveargeraf": {"asdregegf":3}, "jsdsafsdafkfds":[3, 4], 4:"sadkjsadfekjsdfkljsdfbkdjsf"}] * 2
z = [''] * N

libs = [
    (u, "UltraJSON"),
    (s, "SimpleJSON"),
    (j, "Built-in JSON"),
]

print "Encode:"
print "----------------\n"

for lib in libs:
    l, name = lib
    t0 = t.clock()

    for i in xrange(N):
        z[i] = l.dumps(x)

    t1 = t.clock()

    print "%s\t%.6f s, %r calls/second" % (name, t1-t0, N * (t1 - t0) ** (-1))

print "\nDecode:"
print "----------------\n"

for lib in libs:
    l, name = lib
    t0 = t.clock()

    for e in z:
        l.loads(e)

    t1 = t.clock()

    print "%s\t%.6f s, %r calls/second" % (name, t1-t0, N * (t1 - t0) ** (-1))

print "\nEncode + Decode:"
print "----------------\n"

for lib in libs:
    l, name = lib
    t0 = t.clock()

    for i in xrange(N):
        l.loads(l.dumps(x))

    t1 = t.clock()

    print "%s\t%.6f s, %r calls/second" % (name, t1-t0, N * (t1 - t0) ** (-1))