Designing a physics engine
Physics engines are responsible for figuring out where each object in a scene is over time. Objects can collide with one another, then choose to respond in several ways. It’s a generic problem that the user can configure at several different levels. Do they want a collider? Do they want to respond to collisions? Do they want to simulate dynamics? They could want dynamics, but not gravity. It’s a problem that calls for good planning and robust design.
Migrating a 40TB SQL Server Database
Stackoverflow tech stack is very standarize, and they always try to scale vertically, as in just using a single big database instead of sharding into multiple servers. They have amazing performance given their huge traffic. In this post, Taryn shares the journey of migrating their traffic log data.
Stackoverflow performance metrics
If you use Stackoverflow, and enjoy their approach to lean and simple engineering, then why not see how their performance looks like
How we migrated Dropbox from Nginx to Envoy
Envoy is a new load balancer by Lyft, design for dynamic environment. You can change its configuration without the need of generating static config file and trigger a reload like Nginx. For performance, at scale Envoy is a bit better.
Small Mailserver Best Current Practices
If you ever have to send out email from your app, and have to deal with DKIM and SPF and struggle with all the thing that you have to go through to make your email delivery reliably to your audience, then this post is for you.
Writing a file system from scratch in Rust
Walk you through process of writing a file system driver so you can pre-allocate a raw file which will be used to house your … files, then mount it, then finally access it through normal file system API. You can create file, ls file. The post ins’t too heavy on Rust b ut give a nice entry introduction to file system.
Write your Own Virtual Machine
How hard that sound? Actually a virtual machine is quite simple in its own. Basica idea is a loop that fetch the instruction from a pre-defined location, that’s intruction is what your virtual machine can do.
SQL Style guide
You can use its as it’s or customization for your own engineering team
Code to read
ORM is still an unsolve problem in Go’s world. No clearn winner has been emerge like Ruby or Python. They are of course a hard problem, let’s dig into the source of reform to understand more about ORM
A small, lightweight and extensible DynDNS server written with Ruby and Rack.
This is Mac OS 8, running in an Electron app pretending to be a 1991 Macintosh Quadra. Yes, it’s the full thing. I’m sorry.
an open source policy engine for authorization that’s embedded in your application. It provides a declarative policy language for expressing authorization logic.
Core toolchain is in Rust, but it has binding for Ruby and Python which you can use without worrying about Rust.
Flexible self-contained PostgreSQL metrics monitoring/dashboarding solution. Supports monitoring PG versions 9.0 to 12 out of the box.
A screencast utility that displays your keyboard and mouse status
Lightweight static analysis for many languages. Find and block bug variants with rules that look like source code.
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