[PYSPARK] SPARK-21296 benchmark codes

benchmark.py

import time


def timing(f):
    def wrap(*args):
        time1 = time.time()
        ret = f(*args)
        time2 = time.time()
        print '%s function took %0.3f ms' % (f.func_name, (time2-time1)*1000.0)
        return ret
    return wrap

data = range(1000000)
for _ in xrange(10):
    timing(lambda: spark.createDataFrame(data, "int"))()