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# Copyright 2020 The gRPC Authors
#
# 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.
"""The Python AsyncIO Benchmark Clients."""
import abc
import asyncio
import logging
import random
import time
import grpc
from grpc.experimental import aio
from src.proto.grpc.testing import benchmark_service_pb2_grpc
from src.proto.grpc.testing import control_pb2
from src.proto.grpc.testing import messages_pb2
from tests.qps import histogram
from tests.unit import resources
class GenericStub(object):
def __init__(self, channel: aio.Channel):
self.UnaryCall = channel.unary_unary(
'/grpc.testing.BenchmarkService/UnaryCall')
self.StreamingFromServer = channel.unary_stream(
'/grpc.testing.BenchmarkService/StreamingFromServer')
self.StreamingCall = channel.stream_stream(
'/grpc.testing.BenchmarkService/StreamingCall')
class BenchmarkClient(abc.ABC):
"""Benchmark client interface that exposes a non-blocking send_request()."""
def __init__(self, address: str, config: control_pb2.ClientConfig,
hist: histogram.Histogram):
# Disables underlying reuse of subchannels
unique_option = (('iv', random.random()),)
# Parses the channel argument from config
channel_args = tuple(
(arg.name, arg.str_value) if arg.HasField('str_value') else (
arg.name, int(arg.int_value)) for arg in config.channel_args)
# Creates the channel
if config.HasField('security_params'):
channel_credentials = grpc.ssl_channel_credentials(
resources.test_root_certificates(),)
server_host_override_option = ((
'grpc.ssl_target_name_override',
config.security_params.server_host_override,
),)
self._channel = aio.secure_channel(
address, channel_credentials,
unique_option + channel_args + server_host_override_option)
else:
self._channel = aio.insecure_channel(address,
options=unique_option +
channel_args)
# Creates the stub
if config.payload_config.WhichOneof('payload') == 'simple_params':
self._generic = False
self._stub = benchmark_service_pb2_grpc.BenchmarkServiceStub(
self._channel)
payload = messages_pb2.Payload(
body=b'\0' * config.payload_config.simple_params.req_size)
self._request = messages_pb2.SimpleRequest(
payload=payload,
response_size=config.payload_config.simple_params.resp_size)
else:
self._generic = True
self._stub = GenericStub(self._channel)
self._request = b'\0' * config.payload_config.bytebuf_params.req_size
self._hist = hist
self._response_callbacks = []
self._concurrency = config.outstanding_rpcs_per_channel
async def run(self) -> None:
await self._channel.channel_ready()
async def stop(self) -> None:
await self._channel.close()
def _record_query_time(self, query_time: float) -> None:
self._hist.add(query_time * 1e9)
class UnaryAsyncBenchmarkClient(BenchmarkClient):
def __init__(self, address: str, config: control_pb2.ClientConfig,
hist: histogram.Histogram):
super().__init__(address, config, hist)
self._running = None
self._stopped = asyncio.Event()
async def _send_request(self):
start_time = time.monotonic()
await self._stub.UnaryCall(self._request)
self._record_query_time(time.monotonic() - start_time)
async def _send_indefinitely(self) -> None:
while self._running:
await self._send_request()
async def run(self) -> None:
await super().run()
self._running = True
senders = (self._send_indefinitely() for _ in range(self._concurrency))
await asyncio.gather(*senders)
self._stopped.set()
async def stop(self) -> None:
self._running = False
await self._stopped.wait()
await super().stop()
class StreamingAsyncBenchmarkClient(BenchmarkClient):
def __init__(self, address: str, config: control_pb2.ClientConfig,
hist: histogram.Histogram):
super().__init__(address, config, hist)
self._running = None
self._stopped = asyncio.Event()
async def _one_streaming_call(self):
call = self._stub.StreamingCall()
while self._running:
start_time = time.time()
await call.write(self._request)
await call.read()
self._record_query_time(time.time() - start_time)
await call.done_writing()
async def run(self):
await super().run()
self._running = True
senders = (self._one_streaming_call() for _ in range(self._concurrency))
await asyncio.gather(*senders)
self._stopped.set()
async def stop(self):
self._running = False
await self._stopped.wait()
await super().stop()
class ServerStreamingAsyncBenchmarkClient(BenchmarkClient):
def __init__(self, address: str, config: control_pb2.ClientConfig,
hist: histogram.Histogram):
super().__init__(address, config, hist)
self._running = None
self._stopped = asyncio.Event()
async def _one_server_streaming_call(self):
call = self._stub.StreamingFromServer(self._request)
while self._running:
start_time = time.time()
await call.read()
self._record_query_time(time.time() - start_time)
async def run(self):
await super().run()
self._running = True
senders = (
self._one_server_streaming_call() for _ in range(self._concurrency))
await asyncio.gather(*senders)
self._stopped.set()
async def stop(self):
self._running = False
await self._stopped.wait()
await super().stop()
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