cPickle vs cPickle+HIGHEST_PROTOCOL vs marshal

output

cPickle default dumps: 0.107237100601
cPickle HIGHEST_PROTOCOL dumps: 0.0678668022156
marshal dumps: 0.0203359127045
cPickle default loads: 0.0411729812622
cPickle HIGHEST_PROTOCOL loads: 0.0352649688721
marshal loads: 0.0221829414368

t.py

import cPickle as pickle
import base64
import time 
import marshal

data = ((u'instance', u's3750'), (u'interface', u'Gi1/0/22'), (u'name', u'ifHighSpeed'), (u'plugin', u'switch'), (u'source_hostname', u'switch3750'))

t = time.time()
for i in range(10000):
  pickle.dumps(data)
print 'cPickle default dumps: %s' % (time.time()-t)

t = time.time()
for i in range(10000):
  pickle.dumps(data, protocol=pickle.HIGHEST_PROTOCOL)
print 'cPickle HIGHEST_PROTOCOL dumps: %s' % (time.time()-t)

t = time.time()
for i in range(10000):
  marshal.dumps(data)
print 'marshal dumps: %s' % (time.time()-t)

d = pickle.dumps(data)
t = time.time()
for i in range(10000):
  pickle.loads(d)
print 'cPickle default loads: %s' % (time.time()-t)

d = pickle.dumps(data, protocol=pickle.HIGHEST_PROTOCOL)
t = time.time()
for i in range(10000):
  pickle.loads(d)
print 'cPickle HIGHEST_PROTOCOL loads: %s' % (time.time()-t)

d = marshal.dumps(data)
t = time.time()
for i in range(10000):
  marshal.loads(d)
print 'marshal loads: %s' % (time.time()-t)