#!/usr/bin/env python
# encoding: utf-8
#
# Copyright (c) 2008 Doug Hellmann All rights reserved.
#
"""
"""

__version__ = "$Id$"
#end_pymotw_header

import timeit

iterations = 1000

def show_results(title, result, iterations):
    "Print results in terms of microseconds per pass and per item."
    per_pass = 1000000 * (result / iterations)
    print '%s:\t%.2f usec/pass' % (title, per_pass)


adler32 = timeit.Timer(
    stmt="zlib.adler32(data)",
    setup="import zlib; data=open('lorem.txt','r').read() * 10",
    )
show_results('Adler32, separate',
             adler32.timeit(iterations), iterations)

adler32_running = timeit.Timer(
    stmt="cksum = zlib.adler32(data, cksum)",
    setup="""import zlib
data=open('lorem.txt','r').read() * 10
cksum = zlib.adler32(data)""",
    )
show_results('Adler32, running',
             adler32_running.timeit(iterations), iterations)

crc32 = timeit.Timer(
    stmt="zlib.crc32(data)",
    setup="import zlib; data=open('lorem.txt','r').read() * 10",
    )
show_results('CRC-32, separate',
             crc32.timeit(iterations), iterations)

crc32_running = timeit.Timer(
    stmt="cksum = zlib.crc32(data, cksum)",
    setup="""import zlib
data=open('lorem.txt','r').read() * 10
cksum = zlib.crc32(data)""",
    )
show_results('CRC-32, running',
             crc32_running.timeit(iterations), iterations)