Cristian Barrientos Montoya ColadaFF

## latency.markdown

      
              2 files
            
          
              743 forks
            
          
              50 comments
            
          
              4433 stars
            
          
                hellerbarde
                / latency.markdown
            
            
              Created
              May 31, 2012 13:16
                — forked from jboner/latency.txt
            
              
                Latency numbers every programmer should know
              
          
    Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

  
## JavaPasswordSecurity.java
import java.security.SecureRandom;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.SecretKeyFactory;
import java.math.BigInteger;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;

/*
 * PBKDF2 salted password hashing.
 * Author: havoc AT defuse.ca

## introrx.md

      
              7 files
            
          
              2514 forks
            
          
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                staltz
                / introrx.md
            
            
              Last active
              July 22, 2024 09:31
            
              
                The introduction to Reactive Programming you've been missing
              
          
    The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.


## Enhance.js
import { Component } from "React";

export var Enhance = ComposedComponent => class extends Component {
  constructor() {
    this.state = { data: null };
  }
  componentDidMount() {
    this.setState({ data: 'Hello' });
  }
  render() {

## README.md

      
              3 files
            
          
              1 fork
            
          
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              9 stars
            
          
                jakekdodd
                / README.md
            
            
              Created
              February 20, 2015 16:30
            
              
                Example of kafka-python producer using Avro
              
          
    Notes:


This uses the python loremipsum generator. You can replace g.generate_sentence() with your own string or generator of choice
Make sure to replace schema_path in the script with your own schema path
No guarantees that this is the best way to loop over records and publish them to Kafka, just a demo. Before adapting this script, take a look at the Avro documentation...the writer might not need to be instantiated for every record, for example. I'm just not sure.

Instructions


Create a Kafka topic to test this on (default in the script is 'test')
Replace schema_path with the path to user.avsc
Open up a console Kafka consumer (see the 'quick start' section in Kafka's documentation)


## encoding-video.md

      
              1 file
            
          
              145 forks
            
          
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              1033 stars
            
          
                Vestride
                / encoding-video.md
            
            
              Last active
              June 5, 2024 14:38
            
              
                Encoding video for the web
              
          
    Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.
brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

  
## contributors.md

      
              1 file
            
          
              0 forks
            
          
              3 comments
            
          
              9 stars
            
          
                Widdershin
                / contributors.md
            
            
              Last active
              May 2, 2016 21:28
            
              
                Cycle.js contributors wanted!
              
          
    I'm looking for some awesome people to join me in working on some of the Cycle.js projects I've released. Have a look at the list. If you're unsure about anything (such as wanting to help but being unsure if you're able/welcome) please contact me!
Collaborators wanted:

tricycle (difficulty: beginner-advanced)

Tricycle lets you try out Cycle.js in your browser. Try it out here.
Tricycle has lots of opportunities to help out and improvements would make a big difference to the community as for a lot of beginners Tricycle is their first introduction to writing Cycle code.

  
## Applied-FP-with-Scala.md

      
              1 file
            
          
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                jdegoes
                / Applied-FP-with-Scala.md
            
            
              Last active
              May 9, 2024 08:27
            
          
    Applied Functional Programming with Scala - Notes

Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.
1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.
val square : Int => Int = x => x * x

  
## Effective_Engineer.md

      
              1 file
            
          
              1283 forks
            
          
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              8383 stars
            
          
                rondy
                / Effective_Engineer.md
            
            
              Last active
              July 22, 2024 14:01
            
          
    FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes


By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?


## anonymous
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
<style id="jsbin-css">
.toolTip {
   font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
   position: absolute;
	import java.security.SecureRandom;
	import javax.crypto.spec.PBEKeySpec;
	import javax.crypto.SecretKeyFactory;
	import java.math.BigInteger;
	import java.security.NoSuchAlgorithmException;
	import java.security.spec.InvalidKeySpecException;

	/*
	* PBKDF2 salted password hashing.
	* Author: havoc AT defuse.ca
	import { Component } from "React";

	export var Enhance = ComposedComponent => class extends Component {
	constructor() {
	this.state = { data: null };
	}
	componentDidMount() {
	this.setState({ data: 'Hello' });
	}
	render() {
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	<style id="jsbin-css">
	.toolTip {
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	position: absolute;