86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
|
# python3
|
||
|
# Copyright 2019 Google LLC
|
||
|
#
|
||
|
# 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.
|
||
|
"""Main driver for benchmarks."""
|
||
|
|
||
|
import copy
|
||
|
import statistics
|
||
|
import threading
|
||
|
import types
|
||
|
|
||
|
from benchmarks import suites
|
||
|
from benchmarks.harness.machine_producers import machine_producer
|
||
|
|
||
|
|
||
|
# pylint: disable=too-many-instance-attributes
|
||
|
class BenchmarkDriver:
|
||
|
"""Allocates machines and invokes a benchmark method."""
|
||
|
|
||
|
def __init__(self,
|
||
|
producer: machine_producer.MachineProducer,
|
||
|
method: types.FunctionType,
|
||
|
runs: int = 1,
|
||
|
**kwargs):
|
||
|
|
||
|
self._producer = producer
|
||
|
self._method = method
|
||
|
self._kwargs = copy.deepcopy(kwargs)
|
||
|
self._threads = []
|
||
|
self.lock = threading.RLock()
|
||
|
self._runs = runs
|
||
|
self._metric_results = {}
|
||
|
|
||
|
def start(self):
|
||
|
"""Starts a benchmark thread."""
|
||
|
for _ in range(self._runs):
|
||
|
thread = threading.Thread(target=self._run_method)
|
||
|
thread.start()
|
||
|
self._threads.append(thread)
|
||
|
|
||
|
def join(self):
|
||
|
"""Joins the thread."""
|
||
|
# pylint: disable=expression-not-assigned
|
||
|
[t.join() for t in self._threads]
|
||
|
|
||
|
def _run_method(self):
|
||
|
"""Runs all benchmarks."""
|
||
|
machines = self._producer.get_machines(
|
||
|
suites.benchmark_machines(self._method))
|
||
|
try:
|
||
|
result = self._method(*machines, **self._kwargs)
|
||
|
for name, res in result:
|
||
|
with self.lock:
|
||
|
if name in self._metric_results:
|
||
|
self._metric_results[name].append(res)
|
||
|
else:
|
||
|
self._metric_results[name] = [res]
|
||
|
finally:
|
||
|
# Always release.
|
||
|
self._producer.release_machines(machines)
|
||
|
|
||
|
def median(self):
|
||
|
"""Returns the median result, after join is finished."""
|
||
|
for key, value in self._metric_results.items():
|
||
|
yield key, [statistics.median(value)]
|
||
|
|
||
|
def all(self):
|
||
|
"""Returns all results."""
|
||
|
for key, value in self._metric_results.items():
|
||
|
yield key, value
|
||
|
|
||
|
def meanstd(self):
|
||
|
"""Returns all results."""
|
||
|
for key, value in self._metric_results.items():
|
||
|
mean = statistics.mean(value)
|
||
|
yield key, [mean, statistics.stdev(value, xbar=mean)]
|