thiagokokada

[Vivo Fibra] Usando RTF3507VW-N1 em modo bridge

Por que usar o RTF3507VW-N1 em modo bridge?

O roteador Askey RTF3507VW-N1 fornecido pela Vivo tem vários problemas:

• Existe um cache interno de DNS (usando o dnsmasq?) bugado: ao fazer a mesma requisição DNS duas vezes seguidas, a primeira resposta vem correta, porém na seguinte temos:

thiagokokada

{ pkgs ? import <nixpkgs> {} }:

let
  fixWrapper = pkgs.runCommand "fix-wrapper" {} ''
    mkdir -p $out/bin
    for i in ${pkgs.gcc.cc}/bin/*-gnu-gcc*; do
      ln -s ${pkgs.gcc}/bin/gcc $out/bin/$(basename "$i")
    done
    for i in ${pkgs.gcc.cc}/bin/*-gnu-{g++,c++}*; do
      ln -s ${pkgs.gcc}/bin/g++ $out/bin/$(basename "$i")

thiagokokada

#!/usr/bin/env bash

#_(
   bb_dir="$HOME/.bb"

   if [ ! -x "$bb_dir/bb" ]; then
     echo "Babashka not found. Installing it at $bb_dir directory..."

     download_dir="$(mktemp -d)"
     trap "rm -rf $download_dir" EXIT

thiagokokada

#!/usr/bin/env bb

(ns is-tty
  (:require [babashka.process :as p]))

(defn- is-tty
  [fd key]
  (-> ["test" "-t" (str fd)]
      (p/process {key :inherit :env {}})
      deref

thiagokokada

#!/usr/bin/env bb

;; Inspired from https://book.babashka.org/#_running_tests

(require '[clojure.test :as t]
         '[clojure.string :as string]
         '[babashka.classpath :as cp]
         '[babashka.fs :as fs])

(cp/add-classpath "src:test")

thiagokokada

Low-latency guests in KVM

Summary

Obtaining a low-latency guests in KVM (i.e.: low DPC latency for Windows guests) can be difficult. Without it, you may hear cracks/pops in audio or freezes in the VM, so they can be very annoying, specially for gaming dedicated VMs.

This document summarizes some of my findings on this subject.

Configuring KVM for real-time workloads

thiagokokada

{
  "$schema": "https://raw.githubusercontent.com/jsonresume/resume-schema/v1.0.0/schema.json",
  "basics": {
    "name": "Thiago Kenji Okada",
    "label": "Senior Software Engineer",
    "picture": "https://avatars2.githubusercontent.com/u/844343?s=460&u=b0a39e7e5e7079e199a81ba9bcce46648f1392af&v=4",
    "email": "thiagokokada@gmail.com",
    "summary": "I am a Full Stack Senior Software Engineer with experience developing scalable applications in languages like Kotlin, Clojure and Ruby, frontend development with JavaScript and mobile development with Flutter. I also have experience in DevOps, mainly in AWS environment, working with tools like Ansible and Terraform and also managing multiple Kubernetes clusters. I have business experience in payment systems and financial services, and a computer science degree focused in distributed systems and cloud computing.",
    "location": {
      "city": "Dublin",

thiagokokada

Keybase proof

I hereby claim:

• I am thiagokokada on github.
• I am thiagokokada (https://keybase.io/thiagokokada) on keybase.
• I have a public key whose fingerprint is B291 6223 6D5D D544 24AB 0831 1CA3 07B3 74C1 BD81

To claim this, I am signing this object:

thiagokokada

#!/bin/sh

###############################################################################
# ABOUT                                                                       #
###############################################################################
# This is a modified version of mons v0.8.2 [1] with needed                   #
# liblist.sh v1.1 [2]  functions included inline.                             #
# [1]: https://github.com/Ventto/mons/blob/v0.8.2/mons                        #
# [2]: https://github.com/Ventto/libshlist/blob/v1.1/liblist.sh               #
###############################################################################

thiagokokada

describe "+ 1.0 * 5" do
  defmodule FakeIO do
    defdelegate puts(message), to: IO
    def gets("operation(1)> "), do: "+ 1.0"
    def gets("operation(2)> "), do: "* 5"
    def gets(_), do: "= 0.0"
  end

  test "accumulator should be 5.0" do
    run = fn ->