76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
# Copyright (c) 2021 Red Hat, Inc.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from __future__ import absolute_import
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import json
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import time
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from oslo_log import log
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from tobiko.shell.iperf import _interface
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from tobiko.shell.iperf import _parameters
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from tobiko.shell import sh
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LOG = log.getLogger(__name__)
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def iperf(ssh_client, ssh_server, **iperf_params):
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"""Run iperf on both client and server machines and return obtained
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statistics
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:param ssh_client: ssh connection to client
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:param ssh_server: ssh connection to server
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:param **iperf_params: parameters to be forwarded to get_statistics()
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function
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:returns: dict
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"""
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parameters_server = _parameters.get_iperf_parameters(
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mode='server', **iperf_params)
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# no output expected
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execute_iperf_server(parameters_server, ssh_server)
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time.sleep(0.1)
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parameters_client = _parameters.get_iperf_parameters(
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mode='client', ip=ssh_server.host, **iperf_params)
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# output is a dictionary
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output = execute_iperf_client(parameters_client, ssh_client)
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return output
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def execute_iperf_server(parameters, ssh_client):
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# kill any iperf3 process running before executing it again
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sh.execute(command='pkill iperf3',
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ssh_client=ssh_client,
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expect_exit_status=None)
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time.sleep(1)
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# server is executed in background and no output is expected
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command = _interface.get_iperf_command(parameters=parameters,
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ssh_client=ssh_client)
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sh.execute(command=command, ssh_client=ssh_client)
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def execute_iperf_client(parameters, ssh_client):
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command = _interface.get_iperf_command(parameters=parameters,
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ssh_client=ssh_client)
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result = sh.execute(command=command,
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ssh_client=ssh_client,
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timeout=parameters.timeout + 5.,
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expect_exit_status=None)
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return json.loads(result.stdout)
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