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# Verify throughput over sudo and SSH at various compression levels.
import os
import tempfile
import mitogen
import mitogen.core
import mitogen.service
import ansible_mitogen.affinity
def prepare():
pass
def transfer(context, path):
fp = open('/dev/null', 'wb')
mitogen.service.FileService.get(context, path, fp)
fp.close()
def fill_with_random(fp, size):
n = 0
s = os.urandom(1048576*16)
while n < size:
fp.write(s)
n += len(s)
def run_test(router, fp, s, context):
fp.seek(0, 2)
size = fp.tell()
print('Testing %s...' % (s,))
context.call(prepare)
t0 = mitogen.core.now()
context.call(transfer, router.myself(), fp.name)
t1 = mitogen.core.now()
print('%s took %.2f ms to transfer %.2f MiB, %.2f MiB/s' % (
s, 1000 * (t1 - t0), size / 1048576.0,
(size / (t1 - t0) / 1048576.0),
))
@mitogen.main()
def main(router):
ansible_mitogen.affinity.policy.assign_muxprocess()
bigfile = tempfile.NamedTemporaryFile()
fill_with_random(bigfile, 1048576*512)
file_service = mitogen.service.FileService(router)
pool = mitogen.service.Pool(router, ())
file_service.register(bigfile.name)
pool.add(file_service)
try:
context = router.local()
run_test(router, bigfile, 'local()', context)
context.shutdown(wait=True)
context = router.sudo()
run_test(router, bigfile, 'sudo()', context)
context.shutdown(wait=True)
context = router.ssh(hostname='localhost', compression=False)
run_test(router, bigfile, 'ssh(compression=False)', context)
context.shutdown(wait=True)
context = router.ssh(hostname='localhost', compression=True)
run_test(router, bigfile, 'ssh(compression=True)', context)
context.shutdown(wait=True)
finally:
pool.stop()
bigfile.close()
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