ring_buffer.py

import time
from array import array
import numpy as np

buff = array('B')

x = np.empty([], dtype=np.uint8)


t0 = time.time()
for _ in range(1000):
    buff.extend(array('B', '\x00' * 8000))
print '1', time.time() - t0

msg = bytearray()

t0 = time.time()
for _ in range(1000):
    msg.extend('\x40' * 8000)
print '2', time.time() - t0

import collections
q = collections.deque()
t0 = time.time()
for _ in range(1000):
    q.append(array('B', [0]*8000))
print '3', time.time() - t0

q = collections.deque()
t0 = time.time()
for _ in range(1000):
    q.append(array('B', '\x00' * 8000))
print '4', time.time() - t0

x = '\x00\x00'

q = collections.deque()
t0 = time.time()
for _ in range(1000):
    x = x + '\x00' * 8000
print '5', time.time() - t0