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TCP tuning

The most important TCP tuning areas since kernel 4.9 are:

• packet pacing
• dynamic TSO sizing
• TCP small queues
• BBR TCP congestion algorithm

Definitions

• Gb = gigabit

thecodingrobot

import requests

data = requests.get('https://api.binance.com/api/v1/exchangeInfo').json()

data = filter(lambda x: x['isMarginTradingAllowed'], data['symbols'])
symbols = map(lambda x: 'BINANCE:{}'.format(x['symbol']), data)
symbols = filter(lambda x: 'BTC' in x, symbols)

print(','.join(symbols))

thecodingrobot

import ccxt
import pandas as pd
import time

bfx = ccxt.bitfinex2()

def fetch(since, limit=1000):
    header = ['Timestamp', 'Open', 'High', 'Low', 'Close', 'Volume']
    data = bfx.fetch_ohlcv('BTC/USD', '1h', since=since, limit=limit)
    df = pd.DataFrame(data, columns=header).set_index('Timestamp')

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BINANCE:ETHBTC
BINANCE:LTCBTC
BINANCE:BNBBTC
BINANCE:NEOBTC
BINANCE:BCCBTC
BINANCE:GASBTC
BINANCE:HSRBTC
BINANCE:MCOBTC
BINANCE:WTCBTC
BINANCE:LRCBTC

thecodingrobot

import asyncio
import ccxt.async as ccxt
import logging
import pandas as pd

from pyti.simple_moving_average import simple_moving_average as sma

logger = logging.getLogger()
handler = logging.StreamHandler()
formatter = logging.Formatter('%(asctime)s %(name)-12s %(levelname)-8s %(message)s')

thecodingrobot

import sys
import websockets
import asyncio
import json
import signal
from datetime import datetime
from datetime import timezone


class bcolors:

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import requests

data = requests.get('https://api.binance.com/api/v1/ticker/24hr').json()

print("ticker,volume,trade_count")
for pair in data:
    symbol = pair['symbol']
    volume = pair['volume']
    trade_cnt = pair['count']
    print("{},{},{}".format(symbol, volume, trade_cnt))

thecodingrobot

import pickle
from math import log
from pprint import pprint

from bittrex import bittrex as btr
from bittrex.bittrex import Bittrex
import networkx as nx
from numpy import roll

thecodingrobot

import requests

data = requests.get('https://api.binance.com/api/v1/exchangeInfo').json()
symbols = map(lambda x: 'BINANCE:{}'.format(x['symbol']), data['symbols'])
symbols = filter(lambda x: 'BTC' in x, symbols)

print(','.join(symbols))

thecodingrobot

import io.undertow.Handlers;
import io.undertow.Undertow;
import io.undertow.server.handlers.*;
import io.undertow.util.Headers;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class UndertowServer {
    public static void main(String[] args) {
        Logger logger = LogManager.getLogger(UndertowServer.class);