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# Copyright 2014: Mirantis Inc.
# All Rights Reserved.
# 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
# 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.
SLA (Service-level agreement) is set of details for determining compliance
with contracted values such as maximum error rate or minimum response time.
from rally.common import streaming_algorithms
from rally.task import sla
class MaxAverageDuration(sla.SLA):
"""Maximum average duration of one iteration in seconds."""
CONFIG_SCHEMA = {"type": "number", "minimum": 0.0,
"exclusiveMinimum": True}
def __init__(self, criterion_value):
super(MaxAverageDuration, self).__init__(criterion_value)
self.avg = 0.0
self.avg_comp = streaming_algorithms.MeanComputation()
def add_iteration(self, iteration):
if not iteration.get("error"):
self.avg = self.avg_comp.result()
self.success = self.avg <= self.criterion_value
return self.success
def merge(self, other):
self.avg = self.avg_comp.result() or 0.0
self.success = self.avg <= self.criterion_value
return self.success
def details(self):
return ("Average duration of one iteration %.2fs <= %.2fs - %s" %
(self.avg, self.criterion_value, self.status()))
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