Digests » 215


The Evolution of Code Deploys at Reddit

We’re constantly deploying code at Reddit. Every engineer writes code, gets it reviewed, checks it in, and rolls it out to production regularly. This happens as often as 200 times each week and a deploy usually takes fewer than 10 minutes end-to-end.

Network Protocols

The network stack does several seemingly-impossible things. It does reliable transmission over our unreliable networks, usually without any detectable hiccups. It adapts smoothly to network congestion. It provides addressing to billions of active nodes.

Hacker, Hack Thyself

The name of the security game is defense in depth, so all these hardening steps help … but we still need to assume that Internet Bad Guys will somehow get a copy of your database. And then what? Well, what's in the database?

Float or double?

In scientific computation we use floating point numbers a lot. This article is a guide to picking the right floating point representation for you. In most programming languages there are two built-in precisions to pick from: 32-bit (single-precision) and 64-bit (double-precision).

Digital Video Introduction

A gentle introduction to video technology, although it's aimed at software developers / engineers, we want to make it easy for anyone to learn. This idea was born during a mini workshop for newcomers to video technology.