MatrixSynapse/synmark/suites/logging.py

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# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# 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.
import logging
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import logging.config
import warnings
from io import StringIO
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from typing import Optional
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from unittest.mock import Mock
from pyperf import perf_counter
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from twisted.internet.address import IPv4Address, IPv6Address
from twisted.internet.defer import Deferred
from twisted.internet.protocol import ServerFactory
from twisted.logger import LogBeginner, LogPublisher
from twisted.protocols.basic import LineOnlyReceiver
from synapse.config.logger import _setup_stdlib_logging
from synapse.logging import RemoteHandler
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from synapse.synapse_rust import reset_logging_config
from synapse.types import ISynapseReactor
from synapse.util import Clock
class LineCounter(LineOnlyReceiver):
delimiter = b"\n"
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count = 0
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def lineReceived(self, line: bytes) -> None:
self.count += 1
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assert isinstance(self.factory, Factory)
if self.count >= self.factory.wait_for and self.factory.on_done:
on_done = self.factory.on_done
self.factory.on_done = None
on_done.callback(True)
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class Factory(ServerFactory):
protocol = LineCounter
wait_for: int
on_done: Optional[Deferred]
async def main(reactor: ISynapseReactor, loops: int) -> float:
"""
Benchmark how long it takes to send `loops` messages.
"""
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logger_factory = Factory()
logger_factory.wait_for = loops
logger_factory.on_done = Deferred()
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port = reactor.listenTCP(0, logger_factory, backlog=50, interface="127.0.0.1")
# A fake homeserver config.
class Config:
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class server:
server_name = "synmark-" + str(loops)
# This odd construct is to avoid mypy thinking that logging escapes the
# scope of Config.
class _logging:
no_redirect_stdio = True
logging = _logging
hs_config = Config()
# To be able to sleep.
clock = Clock(reactor)
errors = StringIO()
publisher = LogPublisher()
mock_sys = Mock()
beginner = LogBeginner(
publisher, errors, mock_sys, warnings, initialBufferSize=loops
)
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address = port.getHost()
assert isinstance(address, (IPv4Address, IPv6Address))
log_config = {
"version": 1,
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"loggers": {"synapse": {"level": "DEBUG", "handlers": ["remote"]}},
"formatters": {"tersejson": {"class": "synapse.logging.TerseJsonFormatter"}},
"handlers": {
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"remote": {
"class": "synapse.logging.RemoteHandler",
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"formatter": "tersejson",
"host": address.host,
"port": address.port,
"maximum_buffer": 100,
}
},
}
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logger = logging.getLogger("synapse")
_setup_stdlib_logging(
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hs_config, # type: ignore[arg-type]
None,
logBeginner=beginner,
)
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# Force a new logging config without having to load it from a file.
logging.config.dictConfig(log_config)
reset_logging_config()
# Wait for it to connect...
for handler in logging.getLogger("synapse").handlers:
if isinstance(handler, RemoteHandler):
break
else:
raise RuntimeError("Improperly configured: no RemoteHandler found.")
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await handler._service.whenConnected(failAfterFailures=10)
start = perf_counter()
# Send a bunch of useful messages
for i in range(loops):
logger.info("test message %s", i)
if len(handler._buffer) == handler.maximum_buffer:
while len(handler._buffer) > handler.maximum_buffer / 2:
await clock.sleep(0.01)
await logger_factory.on_done
end = perf_counter() - start
handler.close()
port.stopListening()
return end