basic_bandwidth_test.py

from multiprocessing import Process
import pycurl
from io import BytesIO

URLS = [
"https://releases.ubuntu.com/20.04.1/ubuntu-20.04.1-desktop-amd64.iso",
"https://repo.ialab.dsu.edu/ubuntu-releases/20.04.1/ubuntu-20.04.1-desktop-amd64.iso",
"http://ubuntu.osuosl.org/releases/20.04.1/ubuntu-20.04.1-desktop-amd64.iso",
"http://mirror.cs.jmu.edu/pub/ubuntu-iso/20.04.1/ubuntu-20.04.1-desktop-amd64.iso",
"http://mirror.metrocast.net/ubuntu-releases/focal/ubuntu-20.04.1-desktop-amd64.iso",
"http://ubuntu.cs.utah.edu/releases/20.04.1/ubuntu-20.04.1-desktop-amd64.iso",
]


def get_url(url):
    while True:
        crl = pycurl.Curl()
        bo = open('/dev/null', 'wb')
        crl.setopt(crl.WRITEFUNCTION, bo.write)
        crl.setopt(crl.URL, url)
        # crl.setopt(crl.WRITEDATA, bo)
        crl.perform()
        crl.close()
        bo.close()

def do_work():
    processes = []
    for url in URLS:
        p = Process(target=get_url, args=(url,))
        p.start()
        processes.append(p)
        p = Process(target=get_url, args=(url,))
        p.start()
        processes.append(p)

    for p in processes:
        p.join()

if __name__ == "__name__":
    do_work()