167 lines
6.0 KiB
Python
167 lines
6.0 KiB
Python
# Copyright (c) 2015 Mirantis 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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#
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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
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# 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 csv
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import json
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import yaml
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from oslo_log import log as logging
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from shaker.engine.executors import base
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from shaker.engine import utils
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LOG = logging.getLogger(__name__)
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def add_common_iperf_params(cmd, executor):
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cmd.add('--client', executor.test_definition.get('host') or
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executor.agent['minion']['ip'])
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cmd.add('--format', 'm')
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if executor.test_definition.get('mss'):
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cmd.add('--mss', executor.test_definition.get('mss'))
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if executor.test_definition.get('buffer_size'):
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cmd.add('--len', executor.test_definition.get('buffer_size'))
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if executor.test_definition.get('udp'):
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cmd.add('--udp')
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if executor.test_definition.get('datagram_size'):
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cmd.add('--len', executor.test_definition.get('datagram_size'))
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if executor.test_definition.get('bandwidth') is not None:
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cmd.add('--bandwidth', executor.test_definition.get('bandwidth'))
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if executor.test_definition.get('args'):
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args = executor.test_definition.get('args')
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for arg in args.split(' '):
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cmd.add(arg)
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# if any of these arguments are present user is using advanced mode so
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# these should overwrite the default addition of the time argument
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mutually_exclusive_with_time = {"-k", "--blockcount", "-n", "--num", "-l",
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"--length"}
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if mutually_exclusive_with_time.isdisjoint(cmd.tokens):
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cmd.add('--time', executor.get_expected_duration())
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else:
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LOG.info('Time argument was not added since it is '
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'mutually exclusive with %s',
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",".join(mutually_exclusive_with_time))
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cmd.add('--parallel', executor.test_definition.get('threads') or 1)
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if executor.test_definition.get('interval'):
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cmd.add('--interval', executor.test_definition.get('interval'))
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class IperfExecutor(base.BaseExecutor):
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def get_command(self):
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cmd = base.CommandLine('iperf')
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add_common_iperf_params(cmd, self)
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cmd.add('--nodelay')
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if self.test_definition.get('csv'):
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cmd.add('--reportstyle', 'C')
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return cmd.make()
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class IperfGraphExecutor(IperfExecutor):
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def get_command(self):
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self.test_definition['csv'] = True
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self.test_definition['interval'] = 1
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return super(IperfGraphExecutor, self).get_command()
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def process_reply(self, message):
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result = super(IperfGraphExecutor, self).process_reply(message)
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if not result['stdout']:
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raise base.ExecutorException(result, 'Empty result from iperf')
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samples = []
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threads_count = self.test_definition.get('threads') or 1
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for row in csv.reader(result['stdout'].split('\n')):
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if row and len(row) > 8:
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thread = row[5]
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if threads_count > 1 and thread != '-1':
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# ignore individual per-thread data
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continue
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start, end = row[6].split('-')
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samples.append([float(end), int(row[8])])
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if samples:
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samples.pop() # the last line is summary, remove it
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result['samples'] = samples
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result['meta'] = [['time', 's'], ['bandwidth', 'bit/s']]
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return result
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class Iperf3Executor(base.BaseExecutor):
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def get_command(self):
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if not self.test_definition.get('interval'):
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self.test_definition['interval'] = 1
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cmd = base.CommandLine('iperf3')
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add_common_iperf_params(cmd, self)
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cmd.add('--json')
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if self.test_definition.get('reverse'):
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cmd.add('--reverse')
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return cmd.make()
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def process_reply(self, message):
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result = super(Iperf3Executor, self).process_reply(message)
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if not result['stdout']:
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raise base.ExecutorException(result, 'Empty result from iperf')
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data = json.loads(result['stdout'])
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# store verbose data in result
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result['verbose'] = yaml.safe_dump(
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dict(start=data['start'], end=data['end']),
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indent=2, default_flow_style=False)
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if 'error' in data:
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raise base.ExecutorException(result, data['error'])
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has_retransmits = False
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if (len(data['intervals']) > 0 and
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'retransmits' in data['intervals'][0]['sum']):
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has_retransmits = True
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if self.test_definition.get('udp'):
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sampler = lambda p: [round(p['end'], 2), p['packets']]
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meta = [['time', 's'], ['packets', 'pps']]
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elif has_retransmits:
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sampler = lambda p: [round(p['end'], 2), p['bits_per_second'],
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p['retransmits']]
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meta = [['time', 's'], ['bandwidth', 'bit/s'], ['retransmits', '']]
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else:
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sampler = lambda p: [round(p['end'], 2), p['bits_per_second']]
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meta = [['time', 's'], ['bandwidth', 'bit/s']]
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samples = []
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for point in data['intervals']:
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samples.append(sampler(point['sum']))
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result['samples'] = samples
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result['meta'] = meta
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stats = result['stats'] = {}
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if utils.copy_value_by_path(data, 'end.sum.jitter_ms',
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stats, 'jitter.avg'):
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utils.set_value_by_path(stats, 'jitter.unit', 'ms')
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if utils.copy_value_by_path(data, 'end.sum.lost_percent',
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stats, 'loss.avg'):
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utils.set_value_by_path(stats, 'loss.unit', '%')
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return result
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