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Alex Morais ThatsAMorais

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@jboner
jboner / latency.txt
Last active April 16, 2024 17:40
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@btoone
btoone / curl.md
Last active April 2, 2024 20:18
A curl tutorial using GitHub's API

Introduction

An introduction to curl using GitHub's API.

The Basics

Makes a basic GET request to the specifed URI

curl https://api.github.com/users/caspyin
@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@YukiSnowy
YukiSnowy / main.cpp
Last active March 20, 2024 19:10
example SDL2 Vulkan application
// g++ *.cpp -o vulkan -lSDL2main -lSDL2 -lvulkan-1
// https://vulkan-tutorial.com/
#include <iostream>
using namespace std;
#include <SDL2/SDL.h>
SDL_Window *window;
char* window_name = "example SDL2 Vulkan application";
@LeCoupa
LeCoupa / redis_cheatsheet.bash
Last active March 18, 2024 09:08
Redis Cheatsheet - Basic Commands You Must Know --> UPDATED VERSION --> https://github.com/LeCoupa/awesome-cheatsheets
# Redis Cheatsheet
# All the commands you need to know
redis-server /path/redis.conf # start redis with the related configuration file
redis-cli # opens a redis prompt
# Strings.
@lizthegrey
lizthegrey / attributes.rb
Last active February 24, 2024 14:11
Hardening SSH with 2fa
default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'
@telent
telent / gist:9742059
Last active February 19, 2024 09:30
12 factor app configuration vs leaking environment variables
App configuration in environment variables: for and against
For (some of these as per the 12 factor principles)
1) they are are easy to change between deploys without changing any code
2) unlike config files, there is little chance of them being checked
into the code repo accidentally
3) unlike custom config files, or other config mechanisms such as Java
@JeffBelback
JeffBelback / docker-destroy-all.sh
Last active December 12, 2023 17:47
Destroy all Docker Containers and Images
#!/bin/bash
# Stop all containers
containers=`docker ps -a -q`
if [ -n "$containers" ] ; then
docker stop $containers
fi
# Delete all containers
containers=`docker ps -a -q`
if [ -n "$containers" ]; then
docker rm -f -v $containers
@perfecto25
perfecto25 / default.j2
Last active July 27, 2023 19:05
Python function to send email using a Jinja HTML template
<style type="text/css">
@font-face {
font-family: 'Open Sans';
font-style: normal;
font-weight: 300;
src: local('Open Sans Light'), local('OpenSans-Light'), url(http://fonts.gstatic.com/s/opensans/v13/DXI1ORHCpsQm3Vp6mXoaTa-j2U0lmluP9RWlSytm3ho.woff2) format('woff2');
unicode-range: U+0460-052F, U+20B4, U+2DE0-2DFF, U+A640-A69F;
}
.body {
width: 90%;
@hannestyden
hannestyden / soundcloud_oauth2_user_agent_authentication_flow_demo.html
Created September 3, 2010 13:45
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>SoundCloud OAuth 2 User Agent Authentication Flow Demo</title>
<script type="text/javascript" charset="utf-8" src="javascript/jquery-1.4.2.js"></script>
<script type="text/javascript" charset="utf-8">
$(function () {
var extractToken = function(hash) {