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author | 2018-04-27 15:11:12 +0200 | |
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committer | 2018-05-04 11:46:26 +0000 | |
commit | 35175924550d67f98fb1c2c50b0634656d29169e (patch) | |
tree | fe1008e80c9c6f09227dff84672bd0eaa831ff23 /resources/libraries/python/search/ReceiveRateMeasurement.py | |
parent | 4bfd1dcd604dac12d1dd00ba63c0d5e4170a1f2b (diff) |
CSIT-992: Add libraries for optimized search
+ Place the libraries into resources/libraries/python/search/.
+ Except OptimizedTrexSearch in TrafficGenerator.py
+ Change traffic generator to support floats for duration and warmup.
+ Remove explicit type conversions where not needed.
+ Add robot keywords to performance_utils.robot
+ for calling the optimized search.
+ for reporting the resulting values.
+ for checking the minimal performance has been reached.
+ for running five second "Traffic should pass with no loss" after the search.
- Add methodology documentation in subsequent Change.
- Add simulator for testing algorithm correctness in a subsequent Change.
- Add tests using the libraries in subsequent Change.
Change-Id: Ia041008382ee4c9a562172099aea794c854d5f2f
Signed-off-by: Vratko Polak <vrpolak@cisco.com>
Diffstat (limited to 'resources/libraries/python/search/ReceiveRateMeasurement.py')
-rw-r--r-- | resources/libraries/python/search/ReceiveRateMeasurement.py | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/resources/libraries/python/search/ReceiveRateMeasurement.py b/resources/libraries/python/search/ReceiveRateMeasurement.py new file mode 100644 index 0000000000..58aa819017 --- /dev/null +++ b/resources/libraries/python/search/ReceiveRateMeasurement.py @@ -0,0 +1,54 @@ +# Copyright (c) 2018 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Module defining ReceiveRateMeasurement class.""" + + +class ReceiveRateMeasurement(object): + """Structure defining the result of single Rr measurement.""" + + def __init__(self, duration, target_tr, transmit_count, drop_count): + """Constructor, normalize primary and compute secondary quantities. + + :param duration: Measurement duration [s]. + :param target_tr: Target transmit rate [pps]. + If bidirectional traffic is measured, this is bidirectional rate. + :param transmit_count: Number of packets transmitted [1]. + :param drop_count: Number of packets transmitted but not received [1]. + :type duration: float + :type target_tr: float + :type transmit_count: int + :type drop_count: int + """ + self.duration = float(duration) + self.target_tr = float(target_tr) + self.transmit_count = int(transmit_count) + self.drop_count = int(drop_count) + self.receive_count = transmit_count - drop_count + self.transmit_rate = transmit_count / self.duration + self.drop_rate = drop_count / self.duration + self.receive_rate = self.receive_count / self.duration + self.drop_fraction = float(self.drop_count) / self.transmit_count + # TODO: Do we want to store also the real time (duration + overhead)? + + def __str__(self): + """Return string reporting input and drop fraction.""" + return "d={dur!s},Tr={rate!s},Df={frac!s}".format( + dur=self.duration, rate=self.target_tr, frac=self.drop_fraction) + + def __repr__(self): + """Return string evaluable as a constructor call.""" + return ("ReceiveRateMeasurement(duration={dur!r},target_tr={rate!r}" + ",transmit_count={trans!r},drop_count={drop!r})".format( + dur=self.duration, rate=self.target_tr, + trans=self.transmit_count, drop=self.drop_count)) |