Every blog post that took off on Hacker News, ranked by the votes of its best submission. 14,545 posts.
Back in spring 2020, I was wrapping up the distributed systems course I was teaching, and for the last lecture, decided to spend a little time poking at the question of who actually invented vector clocks. Most people who need something to cite for vector clocks cite Friedemann Mattern’s “Virtual Time and Global…
In this tutorial, we will learn about solving Differential Equations with Julia. Differential Equations are everywhere in Science and Engineering problems. And, being able to solve Differential Equations using computers is very convenient. We will use the DifferentialEquations.jl package for solving Differential…
Like a lot of people, I have gone retro when it comes to editors, using Vim for most of my day to day work. I’ve been doing most of my development these days in a terminal window, logged directly into a VM where I test my code. For more, see this article. I have been a somewhat casual vi user for at least 15 years…
wingolog: article: the last couple years in v8's garbage collector
One of the lesser known parts of Java is InterruptedException. With its vague-sounding name and non-committal Javadoc, few people are able to figure out what they need to do with it. Since I myself didn’t really grok it, I decided to put together a post explaining how interruption works. If you are looking for a more…
This chapter is a culmination of many macro techniques we have looked at so far in this book. Using macro abstractions we have developed, we create an implementation of one of my favourite programming languages: forth . Although this implementation embodies most of the important ideas of forth, it is very different…
Whenever a 2nd edition of a book is published, people ask “I already have the 1st edition. Do I need to get the 2nd?” It’s a legitimate question and I’ve asked it myself. Reading a 2nd edition after the 1st is not trivial: It’s a commitment of both additional money and additional time.
O’Reilly just published Beautiful Code. I was invited to contribute, but I just could not go along with the premise. I disagree that beauty is a guiding principle of programming. Here is how …
With the release of rust 1.70, there was some surprise and frustration that unstable test features now require nightly , like all other unstable features in Rust. One of the features most affected is --format json which has been in limbo for 5 years . This drew attention to a feeling I've had: the testing story in…
A journey through Unicode's whitespace characters and perfect hashing.
Programming PIC32 Microcontroller with Rust, AKA running rust on bare metal
A guide to weaving C++ threads into Julia with the latest thread adoption feature in Julia version 1.9
Background On April 16, 2025, Apple released a patch for a bug in CoreAudio which they said was “Actively exploited in the wild.” This flew under the radar a bit. Epsilon’s blog has a great writeup of the other bug that was presumably exploited in this chain: a bug in RPAC. The only thing out there that I am aware of…
sed book This is the world's best introduction to sed - the superman of UNIX stream editing. Originally I wrote this introduction for my second e-book, however later I decided to make it a part of the free e-book preview and republish it here as this article. Introduction to sed Mastering sed can be reduced to...
The default tmux prefix key is Ctrl - b , for the remainder of this article, we will refer to the prefix key as prefix .
Blog about web programming & web design
So I was working on improving a DOS emulator, when I found that something seemingly trivial wasn’t working right when COMMAND.COM was asked to do the following:
EDIT: Part 2 is up! It's a pedagogical pet peeve of mine when technical concepts are simply listed in their fully developed state, with little in the way of motivation, derivation, or historical context. This, I think, is like publishing a cookbook filled with beautiful pictures of cakes, but
Almost exactly a year ago, Google made one of the most remarkable press releases in the Web 2.0 era. Of course, by "press release", I actually mean keynote at their own conference, and by "remarkable" I mean potentially-transformative and groundbreaking. I am referring of course to the announcement of Google Wave , a…
In preparation for a future project, I was thinking about at the unix find utility . It operates a file system hierarchies, with basic operations selected and filtered using a specialized expression language. Users compose operations using unary and binary operators, grouping with parentheses for precedence. find may…
