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Tests speed of http mirrors of cygwin
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#!/usr/bin/env python3 | |
""" | |
Tests http mirrors of cygwin | |
""" | |
import random | |
import time | |
from urllib.request import urlopen | |
import sys | |
__author__ = 'Dmitry Sidorenko' | |
mirrors_url = "http://cygwin.com/mirrors.lst" | |
test_file = "/x86_64/setup.ini" | |
mirrors = [ | |
# {"host": "", | |
# "time": 1 | |
# } | |
] | |
print("Downloading mirrors list...", end='') | |
sys.stdout.flush() | |
u = urlopen(mirrors_url) | |
for line in u: | |
strline = str(line)[2:-3] | |
host = strline.split(";") | |
# Only test http | |
if host[0].startswith("http://"): | |
mirrors.append({"host": host, "time": 9999}) | |
print("done, %d entries" % len(mirrors)) | |
random.shuffle(mirrors) | |
block_sz = 8096 | |
max_hosts_to_try = 100 | |
testn = 1 | |
for hostentry in mirrors: | |
host = hostentry["host"] | |
print("testing mirror %s ..." % host[1], end='') | |
sys.stdout.flush() | |
start_time = time.time() | |
try: | |
test = urlopen(host[0] + test_file, timeout=5) | |
test.read(block_sz) | |
time_spent = time.time() - start_time | |
hostentry["time"] = time_spent | |
print("%s sec" % time_spent) | |
except IOError: | |
hostentry["time"] = 9999 | |
print("timeout") | |
testn += 1 | |
if testn > max_hosts_to_try: | |
break | |
mirrors = sorted(mirrors, key=lambda entry: entry["time"]) | |
print("\nTop 5 mirrors\n") | |
sys.stdout.flush() | |
for i in range(5): | |
mirror = mirrors[i] | |
host_info = mirror["host"] | |
if mirror["time"] < 9999: | |
print("%.3f, %14s, %10s, %s" % (mirror["time"], host_info[2], host_info[3], host_info[0]), file=sys.stderr) | |
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