189 lines
7.8 KiB
Python
189 lines
7.8 KiB
Python
# Copyright 2014
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# The Cloudscaling Group, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import select
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from testtools import content as test_content
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from tempest.cloudscaling import base
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import tempest.cloudscaling.thirdparty.scenario.aws_compat.base as aws_base
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from tempest import exceptions
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from tempest.lib.common.utils.linux import remote_client
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from tempest.lib import decorators
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import logging
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logging.getLogger('boto').setLevel(logging.CRITICAL)
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class IPerfServer(object):
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"""Wrapper to use iperf server in tests."""
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cmd = "iperf -s"
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def __init__(self, instance, ssh_user, ssh_keypair):
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self.instance = instance
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self.ssh_user = ssh_user
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self.ssh_keypair = ssh_keypair
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def __enter__(self):
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# NOTE(ft): Iperf doesn't close stdout in server mode
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# but standard exec_command waits for it
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# so instead of use it we waits for some string in output
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ssh = remote_client.RemoteClient(self.instance.ip_address,
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self.ssh_user,
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pkey=self.ssh_keypair.material)
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ssh_conn = ssh.ssh_client._get_ssh_connection()
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chan = ssh_conn.get_transport().open_session()
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chan.get_pty() # NOTE(ft): to stop iperf with session end
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chan.fileno()
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chan.exec_command(self.cmd)
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started = False
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out_data = []
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err_data = []
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select_params = [chan], [], [], ssh.ssh_client.channel_timeout
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while True:
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ready = select.select(*select_params)
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if not any(ready):
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raise exceptions.TimeoutException(
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"Cannot start iperf server on host '{1}'.".format(
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self.host))
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if not ready[0]:
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continue
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out_chunk = err_chunk = None
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if chan.recv_ready():
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out_chunk = chan.recv(ssh.ssh_client.buf_size)
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out_data += out_chunk,
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if chan.recv_stderr_ready():
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err_chunk = chan.recv_stderr(ssh.ssh_client.buf_size)
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err_data += err_chunk,
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if chan.exit_status_ready():
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exit_status = chan.recv_exit_status()
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if 0 != exit_status or len(err_data) > 0:
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raise exceptions.SSHExecCommandFailed(
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command=self.cmd, exit_status=exit_status,
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strerror=''.join(err_data))
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lines = ''.join(out_data).splitlines()
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for line in lines:
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if line.startswith("Server listening"):
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started = True
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break
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if (started or
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chan.closed and not err_chunk and not out_chunk):
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break
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self.ssh = ssh
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self.ssh_conn = ssh_conn
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self.chan = chan
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def __exit__(self, ex_type, ex_value, ex_traceback):
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self.chan.close()
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self.ssh_conn.close()
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class VPC_Benchmark(aws_base.BaseVPCTest, base.BaseBenchmarkTest):
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"""Benchmark VPC network throughput."""
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@classmethod
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@test.safe_setup
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def setUpClass(cls):
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super(VPC_Benchmark, cls).setUpClass()
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cls.keypair = cls._prepare_key_pair()
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subnet = cls._prepare_vpc(cls.vpc_cidr, cls.subnet_cidr)
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reservation = cls.vpc_client.run_instances(
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cls.image_id,
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min_count=2, max_count=2,
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key_name=cls.keypair.name,
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instance_type=cls.instance_type,
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placement=cls.zone,
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subnet_id=subnet.id)
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if reservation is None:
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raise base.TestCasePreparationError()
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cls.addResourceCleanUp(cls.destroy_reservation, reservation)
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if len(reservation.instances) != 2:
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raise base.TestCasePreparationError()
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cls.instance1 = reservation.instances[0]
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cls.instance2 = reservation.instances[1]
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cls._wait_instance_state(cls.instance1, "running")
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cls._wait_instance_state(cls.instance2, "running")
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cls._prepare_public_ip(cls.instance1)
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cls._prepare_public_ip(cls.instance2)
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def install_iperf(instance):
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try:
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ssh = remote_client.RemoteClient(instance.ip_address,
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cls.ssh_user,
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pkey=cls.keypair.material)
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except exceptions.SSHTimeout:
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raise base.TestCasePreparationError()
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ssh.exec_command("sudo apt-get update && sudo apt-get upgrade -y")
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ssh.exec_command("sudo apt-get update")
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ssh.exec_command("sudo apt-get install iperf")
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install_iperf(cls.instance1)
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install_iperf(cls.instance2)
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cfg = cls.config.cloudscaling
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cls.network_performance_class = cfg.network_performance_class
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cls._load_benchmark_data("AWS_VPC_Benchmark")
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def _get_rate(self, resp):
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resp_items = resp.split(",")
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rate = resp_items[len(resp_items) - 1]
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return int(rate) / 1000000
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def _check_test(self, rate):
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if not self.network_performance_class:
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return
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reference = self._get_benchmark_result(self.network_performance_class)
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if reference is not None:
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content = test_content.text_content(
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"Min rate: %sMbits/sec, Max rate: %sMBits/sec" %
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(reference[0], reference[1]))
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self.addDetail("AWS", content)
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self.assertGreaterEqual(rate, float(reference[0]),
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"%sMbits/sec (current) < %sMbits/sec (AWS)" %
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(rate, reference[0]))
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@decorators.attr(type='benchmark')
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def test_001_internal_vpc_tcp_150MB_throughput(self):
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"""Measure internal VPC network throughput for 150 MBytes transmit."""
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if self.keypair is None:
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self.skipTest("Environment was not initialized")
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with IPerfServer(self.instance1, self.ssh_user, self.keypair):
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ssh = remote_client.RemoteClient(self.instance2.ip_address,
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self.ssh_user,
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pkey=self.keypair.material)
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resp = ssh.exec_command("iperf -c %s -n 150M -x CMSV -y C" %
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self.instance1.private_ip_address)
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rate = self._get_rate(resp)
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self.addDetail("Current", test_content.text_content(
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"150 MBytes throughput: %s Mbits/sec" % rate))
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self._check_test(rate)
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@decorators.attr(type='benchmark')
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def test_002_internal_vpc_tcp_2mins_throughput(self):
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"""Measure internal VPC network throughput for 2 mins transmit."""
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if self.keypair is None:
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self.skipTest("Environment was not initialized")
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with IPerfServer(self.instance1, self.ssh_user, self.keypair):
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ssh = remote_client.RemoteClient(self.instance2.ip_address,
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self.ssh_user,
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pkey=self.keypair.material)
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ssh.ssh_client.channel_timeout = 130
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resp = ssh.exec_command("iperf -c %s -t 120 -x CMSV -y C" %
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self.instance1.private_ip_address)
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rate = self._get_rate(resp)
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self.addDetail("Current", test_content.text_content(
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"2 mins throughput: %s Mbits/sec" % rate))
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self._check_test(rate)
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