a49f53e60f
GPL license does not require all files to have the copyright notice and header. To save some space, I removed the headers from all files except the executables and the main Python module.
96 lines
2.7 KiB
Python
Executable file
96 lines
2.7 KiB
Python
Executable file
#!/usr/bin/python -Es
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#
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# varnetload: A python script to create reproducable sustained network traffic
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# Copyright (C) 2008-2012 Red Hat, Inc.
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# Authors: Phil Knirsch
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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# Usage: varnetload [-d delay in milliseconds] [-t runtime in seconds] [-u URL]
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#
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# Howto use it:
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# - In order to effectively use it you need to have a http server in your local
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# LAN where you can put files.
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# - Upload a large HTML (or any other kind of file) to the http server.
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# - Use the -u option of the script to point to that URL
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# - Play with the delay option to vary the load put on your network. Typical
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# useful values range from 0 to 500.
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#
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import time, getopt, sys
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from urllib2 import *
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def usage():
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print("Usage: varnetload [-d delay in milliseconds] [-t runtime in seconds] [-u URL]")
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delay = 1000.0
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rtime = 60.0
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url = "http://myhost.mydomain/index.html"
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try:
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opts, args = getopt.getopt(sys.argv[1:], "d:t:u:")
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except getopt.error, e:
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print("Error parsing command-line arguments: %s" % e)
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usage()
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sys.exit(1)
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for (opt, val) in opts:
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if opt == '-d':
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delay = float(val)
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elif opt == '-t':
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rtime = float(val)
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elif opt == '-u':
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url = val
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else:
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print("Unknown option: %s" % opt)
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usage()
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sys.exit(1)
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endtime = time.time() + rtime
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delay = float(delay)/1000.0
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try:
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count = 0
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while(time.time() < endtime):
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if (delay < 0.01):
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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urlopen(url).read(409600)
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time.sleep(delay)
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count += 9
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urlopen(url).read(409600)
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time.sleep(delay)
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count += 1
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except URLError, e:
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print("Downloading failed: %s" % e.reason)
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sys.exit(2)
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print("Finished varnetload. Received %d pages in %d seconds" % (count, rtime))
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