135 lines
5.2 KiB
Python
Executable File
135 lines
5.2 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# grv_test.py
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#
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# This source file is part of the FoundationDB open source project
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#
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# Copyright 2013-2020 Apple Inc. and the FoundationDB project authors
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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 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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#
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import argparse
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import inspect
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import sys
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import rate_model
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import workload_model
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import proxy_model
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import ratekeeper_model
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from priority import Priority
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from plot import Plotter
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parser = argparse.ArgumentParser()
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parser.add_argument('-w', '--workload', type=str, help='Name of workload to run')
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parser.add_argument('-r', '--ratekeeper', type=str, help='Name of ratekeeper model')
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parser.add_argument('-d', '--duration', type=int, default=240, help='Duration of simulated test, in seconds. Defaults to 240.')
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parser.add_argument('-L', '--limiter', type=str, default='Original', help='Name of limiter implementation. Defaults to \'Original\'.')
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parser.add_argument('-p', '--proxy', type=str, default='ProxyModel', help='Name of proxy implementation. Defaults to \'ProxyModel\'.')
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parser.add_argument('--list', action='store_true', default=False, help='List options for all models.')
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parser.add_argument('--no-graph', action='store_true', default=False, help='Disable graphical output.')
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args = parser.parse_args()
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def print_choices_list(context=None):
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if context == 'workload' or context is None:
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print('Workloads:')
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for w in workload_model.predefined_workloads.keys():
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print(' %s' % w)
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if context == 'ratekeeper' or context is None:
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print('\nRatekeeper models:')
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for r in ratekeeper_model.predefined_ratekeeper.keys():
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print(' %s' % r)
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proxy_model_classes = [c for c in [getattr(proxy_model, a) for a in dir(proxy_model)] if inspect.isclass(c)]
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if context == 'proxy' or context is None:
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print('\nProxy models:')
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for p in proxy_model_classes:
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if issubclass(p, proxy_model.ProxyModel):
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print(' %s' % p.__name__)
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if context == 'limiter' or context is None:
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print('\nProxy limiters:')
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for p in proxy_model_classes:
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if issubclass(p, proxy_model.Limiter) and p != proxy_model.Limiter:
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name = p.__name__
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if name.endswith('Limiter'):
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name = name[0:-len('Limiter')]
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print(' %s' % name)
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if args.workload is None or args.ratekeeper is None:
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print('ERROR: A workload (-w/--workload) and ratekeeper model (-r/--ratekeeper) must be specified.\n')
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print_choices_list()
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sys.exit(1)
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if args.list:
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print_choices_list()
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sys.exit(0)
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def validate_class_type(var, name, superclass):
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cls = getattr(var, name, None)
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return cls is not None and inspect.isclass(cls) and issubclass(cls, superclass)
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if not args.ratekeeper in ratekeeper_model.predefined_ratekeeper:
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print('Invalid ratekeeper model `%s\'' % args.ratekeeper)
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print_choices_list('ratekeeper')
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sys.exit(1)
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if not args.workload in workload_model.predefined_workloads:
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print('Invalid workload model `%s\'' % args.workload)
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print_choices_list('workload')
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sys.exit(1)
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if not validate_class_type(proxy_model, args.proxy, proxy_model.ProxyModel):
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print('Invalid proxy model `%s\'' % args.proxy)
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print_choices_list('proxy')
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sys.exit(1)
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limiter_name = args.limiter
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if not validate_class_type(proxy_model, limiter_name, proxy_model.Limiter):
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limiter_name += 'Limiter'
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if not validate_class_type(proxy_model, limiter_name, proxy_model.Limiter):
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print('Invalid proxy limiter `%s\'' % args.limiter)
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print_choices_list('limiter')
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sys.exit(1)
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ratekeeper = ratekeeper_model.predefined_ratekeeper[args.ratekeeper]
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workload = workload_model.predefined_workloads[args.workload]
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limiter = getattr(proxy_model, limiter_name)
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proxy = getattr(proxy_model, args.proxy)(args.duration, ratekeeper, workload, limiter)
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proxy.run()
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for priority in workload.priorities():
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latencies = sorted([p for t in proxy.results.latencies[priority].values() for p in t])
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total_started = sum(proxy.results.started[priority].values())
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still_queued = sum([r.count for r in proxy.request_queue if r.priority == priority])
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if len(latencies) > 0:
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print('\n%s: %d requests in %d seconds (rate=%f). %d still queued.' % (priority, total_started, proxy.time, float(total_started)/proxy.time, still_queued))
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print(' Median latency: %f' % latencies[len(latencies)//2])
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print(' 90%% latency: %f' % latencies[int(0.9*len(latencies))])
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print(' 99%% latency: %f' % latencies[int(0.99*len(latencies))])
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print(' 99.9%% latency: %f' % latencies[int(0.999*len(latencies))])
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print(' Max latency: %f' % latencies[-1])
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print('')
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if not args.no_graph:
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plotter = Plotter(proxy.results)
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plotter.display()
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