From 35175924550d67f98fb1c2c50b0634656d29169e Mon Sep 17 00:00:00 2001 From: Vratko Polak Date: Fri, 27 Apr 2018 15:11:12 +0200 Subject: 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 --- .../python/search/AbstractSearchAlgorithm.py | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 resources/libraries/python/search/AbstractSearchAlgorithm.py (limited to 'resources/libraries/python/search/AbstractSearchAlgorithm.py') diff --git a/resources/libraries/python/search/AbstractSearchAlgorithm.py b/resources/libraries/python/search/AbstractSearchAlgorithm.py new file mode 100644 index 0000000000..ae326bd4ca --- /dev/null +++ b/resources/libraries/python/search/AbstractSearchAlgorithm.py @@ -0,0 +1,49 @@ +# 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 AbstractSearchAlgorithm class.""" + +from abc import ABCMeta, abstractmethod + + +class AbstractSearchAlgorithm(object): + """Abstract class defining common API for search algorithms.""" + + __metaclass__ = ABCMeta + + def __init__(self, rate_provider): + """Store the rate provider. + + :param rate_provider: Object able to perform trial measurements. + :type rate_provider: AbstractRateProvider + """ + # TODO: Type check for AbstractRateProvider? + self.rate_provider = rate_provider + + @abstractmethod + def narrow_down_ndr_and_pdr( + self, fail_rate, line_rate, allowed_drop_fraction): + """Perform measurements to narrow down intervals, return them. + + :param fail_rate: Minimal target transmit rate [pps]. + :param line_rate: Maximal target transmit rate [pps]. + :param allowed_drop_fraction: Fraction of dropped packets for PDR [1]. + :type fail_rate: float + :type line_rate: float + :type allowed_drop_fraction: float + :returns: Structure containing narrowed down intervals + and their measurements. + :rtype: NdrPdrResult + """ + # TODO: Do we agree on arguments related to precision or trial duration? + pass -- cgit 1.2.3-korg