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# 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.
"""Start-up benchmarks."""
from benchmarks import suites
from benchmarks.harness import machine
from benchmarks.suites import helpers
# pylint: disable=unused-argument
def startup_time_ms(value, **kwargs):
"""Returns average startup time per container in milliseconds.
Args:
value: The floating point time in seconds.
**kwargs: Ignored.
Returns:
The time given in milliseconds.
"""
return value * 1000
def startup(target: machine.Machine,
workload: str,
count: int = 5,
port: int = 0,
**kwargs):
"""Time the startup of some workload.
Args:
target: A machine object.
workload: The workload to run.
count: Number of containers to start.
port: The port to check for liveness, if provided.
**kwargs: Additional container options.
Returns:
The mean start-up time in seconds.
"""
# Load before timing.
image = target.pull(workload)
netcat = target.pull("netcat")
count = int(count)
port = int(port)
with helpers.Timer() as timer:
for _ in range(count):
if not port:
# Run the container synchronously.
target.container(image, **kwargs).run()
else:
# Run a detached container until httpd available.
with target.container(image, port=port, **kwargs).detach() as server:
(server_host, server_port) = server.address()
target.container(netcat).run(host=server_host, port=server_port)
return timer.elapsed() / float(count)
@suites.benchmark(metrics=[startup_time_ms], machines=1)
def empty(target: machine.Machine, **kwargs) -> float:
"""Time the startup of a trivial container.
Args:
target: A machine object.
**kwargs: Additional startup options.
Returns:
The time to run the container.
"""
return startup(target, workload="true", **kwargs)
@suites.benchmark(metrics=[startup_time_ms], machines=1)
def node(target: machine.Machine, **kwargs) -> float:
"""Time the startup of the node container.
Args:
target: A machine object.
**kwargs: Additional statup options.
Returns:
The time to run the container.
"""
return startup(target, workload="node", port=8080, **kwargs)
@suites.benchmark(metrics=[startup_time_ms], machines=1)
def ruby(target: machine.Machine, **kwargs) -> float:
"""Time the startup of the ruby container.
Args:
target: A machine object.
**kwargs: Additional startup options.
Returns:
The time to run the container.
"""
return startup(target, workload="ruby", port=3000, **kwargs)
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