import time
import marshal

def genData(amount=500000):
  for i in range(amount):
    yield (i, i+2, i*2, (i+1,i+4,i,4), "my string template %s" % i, 1.01*i, True)

data = list(genData())

def bench(text, func, *args):
    times = []
    for run in range(5):
        t0 = time.perf_counter()
        result = func(*args)
        dt = time.perf_counter() - t0
        times.append(dt)
    print("%s: %.1f ms" % (text, min(times) *  1e3))
    return result

def bench_marshal(version, obj):
    data = bench("dumps v%s" % version, marshal.dumps, obj, version)
    print("data size v%s: %.1f kB" % (version, len(data) / 1024))
    bench("loads v%s" % version, marshal.loads, data)
    print("")

for version in range(5):
    bench_marshal(version, data)