fxfactorial

Build in CMake with these params:

CMAKE_CXX_FLAGS:STRING= -fsanitize=address  -fsanitize=leak -g
CMAKE_C_FLAGS:STRING=-fsanitize=address  -fsanitize=leak -g
CMAKE_EXE_LINKER_FLAGS:STRING=-fsanitize=address  -fsanitize=leak
CMAKE_MODULE_LINKER_FLAGS:STRING=-fsanitize=address  -fsanitize=leak

Which can be done with:

fxfactorial

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

fxfactorial

use std::{
    fs::File,
    io::{Read, Write},
    time::Instant,
};
use tokio::task::{self, JoinHandle};

async fn compute() {
    let handles: Vec<JoinHandle<_>> = (0..1000)
        .map(|_| {

fxfactorial

Fixing Thermal Throttling on Thinkpad P1 and X1 Extreme - Linux Edition

Lenovo messed up with the X1E and P1 Gen 1 versions (and maybe later generations) in that the system boots with a thermal limit (aka Tjunction or tjmax) set to 82C (some report 80C). What this means is that regardless of power draw or under-volting settings, when your CPU hits 82C, it will drop the frequency down to the "Configurable TDP-down" frequency, or even lower. It will also may limits the system power draw.

Thermal Paste and Stress Testing

fxfactorial

#!/bin/bash

# source: https://www.linuxquestions.org/questions/debian-26/apt-get-update-gets-stuck-while-reading-package-list-on-my-slug-795324/

mv /var/lib/dpkg/status /var/lib/dpkg/status.broken.bak
cp /var/lib/dpkg/status-old /var/lib/dpkg/status
rm -rf /var/lib/apt/lists/*
dpkg --configure -a
aptitude update
aptitude upgrade

fxfactorial

package main

import (
	"fmt"
	"math/big"

	"github.com/ethereum/go-ethereum/accounts/abi"
	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/common/hexutil"
)

fxfactorial

from collections import defaultdict

GETH_LOGFILE = 'geth-log.txt'


def extract_parameter(source_str, before_str, after_str):
    start_pos = source_str.find(before_str) + len(before_str)
    return source_str[start_pos:source_str.find(after_str, start_pos)]

fxfactorial

pragma solidity ^0.4.24;


contract ECDSA {

    function verify() public returns (bool) {
        bytes32 message = ethMessageHash("TEST");

        bytes memory sig = hex"bceab59162da5e511fb9c37fda207d443d05e438e5c843c57b2d5628580ce9216ffa0335834d8bb63d86fb42a8dd4d18f41bc3a301546e2c47aa1041c3a1823701";
        address addr = 0x999471bb43b9c9789050386f90c1ad63dca89106;

fxfactorial

pragma solidity ^0.7.6;

interface IStableSwapAave {
    function A_precise() external view returns (uint256);

    function balances(uint256 i) external view returns (uint256);

    function underlying_coins(uint256 arg0) external view returns (address);

    function admin_balances(uint256 arg0) external view returns (uint256);

fxfactorial

'use strict';

const WEB3_URL = process.env.WEB3_URL;

const prom     = require('util').promisify;
const ethABI   = require('ethereumjs-abi');
const Web3     = require('web3');
const provider = new Web3.providers.HttpProvider(WEB3_URL);
const web3     = module.exports = new Web3(provider);
const sendAsync = prom(web3.currentProvider.sendAsync).bind(web3.currentProvider);