forked from LBRYCommunity/lbry-sdk
178 lines
6.9 KiB
Python
178 lines
6.9 KiB
Python
import os
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import json
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import argparse
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import asyncio
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import aiohttp
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import time
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from aiohttp import ClientConnectorError
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from lbrynet import __version__
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from lbrynet.blob.blob_file import MAX_BLOB_SIZE
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from lbrynet.conf import Config
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from lbrynet.schema.uri import parse_lbry_uri
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from lbrynet.extras.daemon.client import daemon_rpc
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from lbrynet.extras import system_info
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def extract_uris(response):
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uris = list()
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for key in response:
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for value in response[key]:
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uris.append(value)
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return uris
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async def get_frontpage_uris():
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session = aiohttp.ClientSession()
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try:
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response = await session.get("https://api.lbry.com/file/list_homepage", timeout=10.0)
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if response.status != 200:
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print("API returned non 200 code!!")
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return
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body = await response.json()
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await session.close()
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uris = extract_uris(body['data']['Uris'])
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return uris
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finally:
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await session.close()
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async def report_to_slack(output, webhook):
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payload = {
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"text": f"lbrynet {__version__} ({system_info.get_platform()['platform']}) time to first byte:\n{output}"
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}
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async with aiohttp.request('post', webhook, data=json.dumps(payload)):
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pass
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def confidence(times, z, plus_err=True):
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mean = sum(times) / len(times)
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standard_dev = (sum(((t - sum(times) / len(times)) ** 2.0 for t in times)) / len(times)) ** 0.5
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err = (z * standard_dev) / (len(times) ** 0.5)
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return f"{round((mean + err) if plus_err else (mean - err), 3)}"
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def variance(times):
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mean = sum(times) / len(times)
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return round(sum(((i - mean) ** 2.0 for i in times)) / (len(times) - 1), 3)
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async def wait_for_done(conf, uri, timeout):
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name = uri.split("#")[0]
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last_complete = 0
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hang_count = 0
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while True:
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files = await daemon_rpc(conf, "file_list", claim_name=name)
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file = files[0]
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if file['status'] in ['finished', 'stopped']:
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return True, file['blobs_completed'], file['blobs_in_stream']
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if last_complete < int(file['blobs_completed']):
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hang_count = 0
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last_complete = int(file['blobs_completed'])
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else:
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hang_count += 1
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await asyncio.sleep(1.0)
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if hang_count > timeout:
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return False, file['blobs_completed'], file['blobs_in_stream']
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async def main(uris=None, cmd_args=None):
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if not uris:
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uris = await get_frontpage_uris()
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conf = Config()
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try:
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await daemon_rpc(conf, 'status')
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except (ClientConnectorError, ConnectionError):
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print("Could not connect to daemon")
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return 1
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print(f"Checking {len(uris)} uris from the front page")
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print("**********************************************")
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resolvable = []
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async def __resolve(name):
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resolved = await daemon_rpc(conf, 'resolve', urls=[name])
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if 'error' not in resolved.get(name, {}):
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if ("fee" not in resolved[name]['claim']['value']) or cmd_args.allow_fees:
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resolvable.append(name)
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else:
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print(f"{name} has a fee, skipping it")
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else:
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print(f"failed to resolve {name}: {resolved[name]['error']}")
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await asyncio.gather(*(__resolve(name) for name in uris))
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print(f"attempting to download {len(resolvable)}/{len(uris)} frontpage streams")
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first_byte_times = []
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download_speeds = []
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download_successes = []
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failed_to_start = []
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download_failures = []
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for uri in resolvable:
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await daemon_rpc(conf, 'file_delete', delete_from_download_dir=True, claim_name=parse_lbry_uri(uri).name)
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for i, uri in enumerate(resolvable):
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start = time.time()
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try:
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await daemon_rpc(conf, 'get', uri=uri, save_file=True)
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first_byte = time.time()
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first_byte_times.append(first_byte - start)
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print(f"{i + 1}/{len(resolvable)} - {first_byte - start} {uri}")
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if not cmd_args.head_blob_only:
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downloaded, amount_downloaded, blobs_in_stream = await wait_for_done(
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conf, uri, cmd_args.stall_download_timeout
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)
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if downloaded:
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download_successes.append(uri)
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else:
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download_failures.append(uri)
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mbs = round((blobs_in_stream * (MAX_BLOB_SIZE - 1)) / (time.time() - start) / 1000000, 2)
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download_speeds.append(mbs)
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print(f"downloaded {amount_downloaded}/{blobs_in_stream} blobs for {uri} at "
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f"{mbs}mb/s")
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except Exception as e:
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print(f"{i + 1}/{len(uris)} - failed to start {uri}: {e}")
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failed_to_start.append(uri)
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if cmd_args.exit_on_error:
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return
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if cmd_args.delete_after_download or cmd_args.head_blob_only:
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await daemon_rpc(conf, 'file_delete', delete_from_download_dir=True, claim_name=parse_lbry_uri(uri).name)
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await asyncio.sleep(0.1)
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print("**********************************************")
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result = f"Started {len(first_byte_times)} of {len(resolvable)} attempted front page streams\n" \
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f"Worst first byte time: {round(max(first_byte_times), 2)}\n" \
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f"Best first byte time: {round(min(first_byte_times), 2)}\n" \
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f"95% confidence time-to-first-byte: {confidence(first_byte_times, 1.984)}s\n" \
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f"99% confidence time-to-first-byte: {confidence(first_byte_times, 2.626)}s\n" \
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f"Variance: {variance(first_byte_times)}\n"
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if not cmd_args.head_blob_only:
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result += f"Downloaded {len(download_successes)}/{len(resolvable)}\n" \
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f"Best stream download speed: {round(max(download_speeds), 2)}mb/s\n" \
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f"Worst stream download speed: {round(min(download_speeds), 2)}mb/s\n" \
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f"95% confidence download speed: {confidence(download_speeds, 1.984, False)}mb/s\n" \
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f"99% confidence download speed: {confidence(download_speeds, 2.626, False)}mb/s\n"
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if failed_to_start:
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result += "\nFailed to start:" + "\n".join([f for f in failed_to_start])
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if download_failures:
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result += "\nFailed to finish:" + "\n".join([f for f in download_failures])
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print(result)
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webhook = os.environ.get('TTFB_SLACK_TOKEN', None)
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if webhook:
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await report_to_slack(result, webhook)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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#parser.add_argument("--data_dir")
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#parser.add_argument("--wallet_dir")
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#parser.add_argument("--download_directory")
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parser.add_argument("--allow_fees", action='store_true')
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parser.add_argument("--exit_on_error", action='store_true')
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parser.add_argument("--stall_download_timeout", default=10, type=int)
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parser.add_argument("--delete_after_download", action='store_true')
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parser.add_argument("--head_blob_only", action='store_true')
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asyncio.run(main(cmd_args=parser.parse_args()))
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