mirror of
https://github.com/Grasscutters/mitmproxy.git
synced 2024-11-27 02:24:18 +00:00
117 lines
3.6 KiB
Python
117 lines
3.6 KiB
Python
import tempfile
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import asyncio
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import typing
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import time
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from statistics import mean
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from mitmproxy import ctx
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from mitmproxy.io import db
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from mitmproxy.test import tflow
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class StreamTester:
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"""
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Generates a constant stream of flows and
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measure protobuf dumping throughput.
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"""
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def __init__(self):
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self.dbh = None
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self.streaming = False
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self.tf = None
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self.out = None
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self.hot_flows = []
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self.results = []
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self._flushes = 0
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self._stream_period = 0.001
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self._flush_period = 3.0
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self._flush_rate = 150
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self._target = 2000
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self.loop = asyncio.get_event_loop()
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self.queue = asyncio.Queue(maxsize=self._flush_rate * 3, loop=self.loop)
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self.temp = tempfile.NamedTemporaryFile()
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def load(self, loader):
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loader.add_option(
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"testflow_size",
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int,
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1000,
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"Length in bytes of test flow content"
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)
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loader.add_option(
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"benchmark_save_path",
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typing.Optional[str],
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None,
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"Destination for the stats result file"
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)
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def _log(self, msg):
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if self.out:
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self.out.write(msg + '\n')
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else:
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ctx.log(msg)
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def running(self):
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if not self.streaming:
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ctx.log("<== Serialization Benchmark Enabled ==>")
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self.tf = tflow.tflow()
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self.tf.request.content = b'A' * ctx.options.testflow_size
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ctx.log(f"With content size: {len(self.tf.request.content)} B")
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if ctx.options.benchmark_save_path:
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ctx.log(f"Storing results to {ctx.options.benchmark_save_path}")
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self.out = open(ctx.options.benchmark_save_path, "w")
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self.dbh = db.DBHandler(self.temp.name, mode='write')
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self.streaming = True
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tasks = (self.stream, self.writer, self.stats)
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self.loop.create_task(asyncio.gather(*(t() for t in tasks)))
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async def stream(self):
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while True:
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await self.queue.put(self.tf)
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await asyncio.sleep(self._stream_period)
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async def writer(self):
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while True:
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await asyncio.sleep(self._flush_period)
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count = 1
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f = await self.queue.get()
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self.hot_flows.append(f)
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while count < self._flush_rate:
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try:
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self.hot_flows.append(self.queue.get_nowait())
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count += 1
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except asyncio.QueueEmpty:
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pass
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start = time.perf_counter()
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n = self._fflush()
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end = time.perf_counter()
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self._log(f"dumps/time ratio: {n} / {end-start} -> {n/(end-start)}")
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self.results.append(n / (end - start))
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self._flushes += n
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self._log(f"Flows dumped: {self._flushes}")
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ctx.log(f"Progress: {min(100.0, 100.0 * (self._flushes / self._target))}%")
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async def stats(self):
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while True:
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await asyncio.sleep(1.0)
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if self._flushes >= self._target:
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self._log(f"AVG : {mean(self.results)}")
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ctx.log(f"<== Benchmark Ended. Shutting down... ==>")
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if self.out:
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self.out.close()
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self.temp.close()
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ctx.master.shutdown()
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def _fflush(self):
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self.dbh.store(self.hot_flows)
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n = len(self.hot_flows)
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self.hot_flows = []
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return n
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addons = [
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StreamTester()
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]
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