The latest blog posts to take off on Hacker News. 49,206 posts.
It was about a quarter past midnight on July 23, 1999 when the Ralph Roe, the Shuttle Launch Director, told Eileen’s crew that they were go for launch and wished them good luck. The launch, which h…
Introduction & background information NOTE: This content is from an internal talk I gave, thus the reason it may read like a presentation So what is …
A blog about functional programming
code { white-space : pre-wrap !important; } This article is tightly scoped to cover one topic with specific, actionable advice: How to configure...
When we started Segment , we knew nothing about business finance. My background was in aerospace engineering, and my co-founders came from computer science and design. Beyond the hilariously overcomplicated spreadsheet we used to manage grocery bills as roommates, we really had no experience in finance when we started…
All rituals restricted. All rites reserved.
I got some fancy new speakers last week. They’re powered speakers and they have streaming service integrations built in, unlike the 35-year-old passive speakers I’m upgrading from. Overall they’re great! But they’re so loud that it’s difficult to make small volume adjustments within the range of safe volume levels for…
Brewer’s CAP theorem, and Gilbert and Lynch’s formalization of it , is the first introduction to hard trade-offs for many distributed systems engineers. Going by the vast amounts of ink and bile spent on the topic, it is not unreasonable for new folks to conclude that it’s an important, foundational, idea.
I teased at this a bit in my previous posts and finally have a setup I’m happy with, so I thought I’d do a more in-depth writeup.
Hello, Today I am doing a quick post to cover the recent CrowdStrike incident that is estimated to have disabled 8.5M computers and caused more than $5.4B in damages since last week. Now a common q…
An overview of all the tools, standards and special languages used in the automotive industry where the official language is actually C.
Finding the median in a list seems like a trivial problem, but doing so in linear time turns out to be tricky. In this post I’m going to walk through one of my favorite algorithms, the median-of-medians approach to find the median of a list in deterministic linear time. Although proving that this algorithm runs in…
Inspired by Felix Geisendorfer blog post I implemented a database FSM (Finite-State Machine) with Postgresql. I brought some improvements to Felix’s implementation but before reading the following I recommend you to read carefully the original post.
I started looking through corrupt Winamp skins and it lead me down some very strange rabbit holes
Behavioural economics, data science and artificial intelligence.
A guide on how to generate sudokus of any difficulty.
Describe the most important thing first.
In 1890 Giuseppe Peano discovered a square-filling curve , and a year later David Hilbert published his variation . In those days people did not waste readers’ attention with dribble – Peano explained it all on 3 pages, and Hilbert on just 2 pages, with a picture!
The Chinese company in charge of handing out domain names ending in “ .top ” has been given until mid-August 2024 to show that it has put in place systems for managing phishing reports and suspending abusive domains, or else forfeit its license to sell domains. The warning comes amid the release of new findings that…
Lately I’ve been thinking about Stephan Berger’s recent blog post on hiding Linux processes with bind mounts. Bottom line here is that if you have an evil process you want to hide, use …
A door is a "file" descriptor used to describe a procedure in a process and optionally some additional state associated with the procedure. Doors were initially designed as Spring object descriptors used to encapsulate the state and capabilities of C++ objects. A process which obtains a door is free to pass it, along…
On the Origin of Emacs in 1976 (Emacs blog articles)
First of all, this blogpost is kinda long. Let me prove to you reading it will actually have some payoff:
The rest of the world is building subways like crazy. The U.S. has pretty much given up.
Recently one of my colleagues was reading Alan Turing’s groundbreaking 1936 article “On Computable Numbers with an Application to the Entscheidungsproblem.” This is the article in…
“Summing ASCII Encoded Integers on Haswell at the Speed of memcpy” turned out more popular than I expected, which inspired me to take on another challenge on HighLoad: Counting uint8s . I’m currently only #13 on the leaderboard, ~7% behind #1, but I have already learned some interesting things. In this post I’ll…
For the past few days, I have been toying with an idea for a board game. To test it out, I wanted to write a simple implementation of it. Here’s an example of a type we might need in a critical phase of the game.
Author: Alexey Makhotkin squadette@gmail.com. Introduction In this database design tutorial (~9000 words) I’m going to show how to design the database tables for a real-world project of substantial complexity. We’ll design a clone of Google Calendar. We will model as much as possible of the functionality that is…
Digital audio processing is a complex yet fascinating subject. Getting a deeper understanding requires knowledge in multiple technical disciplines, including physics, electrical/electronical engineering, and some software engineering when it comes to parts of the Linux ecosystem. This article aims to demystify the…
