This article is an attempt to sum up a small number of generic rules that appear to be useful rules of thumb when creating high performing programs. It is structured by first establishing some fundamental causes of performance hits followed by their extensions.

If people observe others replying to email lists, pushing commits, opening pull requests, and squashing bugs late at night, then they may incorrectly conclude that they’re not pulling their weight in the team or putting in enough effort.

One of the best (but little known) features of GNU C is the attribute mechanism, which allows a developer to attach characteristics to function declarations to allow the compiler to perform more error checking. It was designed in a way to be compatible with non-GNU implementations, and we've been using this for years in highly portable code with very good results.

Web server in go

So what exactly is a container and how is it different from hypervisor-based virtualization? To put it simply, containers virtualize at the operating system level, whereas hypervisor-based solutions virtualize at the hardware level. While the effect is similar, the differences are important and significant, which is why I'll spend a little time exploring the differences and the resulting differences and trade-offs.

Welcome to the OpenGL Programming book. OpenGL is an API used for drawing 3D graphics. OpenGL is not a programming language; an OpenGL application is typically written in C or C++. What OpenGL does allow you to do is draw attractive, realistic 3D graphics with minimal effort. The API is typically used to interact with a GPU, to achieve hardware-accelerated rendering.

Gitchain is an application of the exciting ideas behind Bitcoin, Namecoin and DHT applied to Git hosting. Once you install it, it acts as a local proxy to the entire Gitchain P2P network.

php -S 127.0.0.1:8080

Mettre son projet en production, c’est la galère. Tellement que mille méthodes on vu le jour pour automatiser tout ça. Chef, salt, fabric, des script bash, virtualenv, git hooks, etc.

Après, il y a ceux qui utilisent des VM. Qui ont leur propres outils d’automatisation type Vagrant.

Et comme ça suffit pas, des services ce sont mis en place pour faciliter la mise en prod dans le cloud comme heroku, gondor…

Malgré ça, Max fait encore beaucoup de truc à la main parce que “ça marche jamais comme prévu”. Pas très scalable.

Dernièrement, grâce à notre cher Cortex, j’ai découvert un projet écrit en Go nommé Docker, qui propose encore une autre approche du problème.

How to use lib lua

for i in pidof python; do cat /proc/$i/cmdline | tr "\0" " " | sed "s/$/ $i\n/"; done