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Unusual Raku Features
Junctions, whatevers, hypers, and more!
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Mario Maker 2 API
Mario Maker 2 API, created Thursday, February 10, 2022
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The Billion Row Challenge (1BRC) – Step-by-Step from 71s to 1.7s
A step-by-step walkthrough of the Billion Row Challenge, taking a Parallel Java Streams aggregation from 71 seconds down to 1.7 with SIMD and tuning.
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Dependency management fatigue, or why I ditched React for Go+HTMX+Templ
After getting to work on some personal projects using Go+HTMX+Templ this year, I have decided to give up on using React on any personal projects. You can actually find a lot of compelling arguments for ditching React in favor of HTMX in the essays found in the HTMX official website. But I feel that not that many…
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Understanding the design of the the Super Nintendo video system
Last time, I explored the inside of the Super Nintendo cartridges . Today I am going through its video system.
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The web's clipboard, and how it stores data of different types
Exploring the web’s clipboard APIs, their limitations, and their history.
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The tragedy of running an old Node project
You want it to just work. But it resists.
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Rewrite It in Rails
In 2022 I started building an application for creating Customs declarations. After evaluating some options and writing code in various programming languages ...
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How do HTTP servers figure out Content-Length?
Anyone who has implemented a simple HTTP 1.1 server can tell you that it is a really simple protocol. Basically, it's a text file that has some specific rules t…
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SQLite on Rails: The how and why of optimal performance
This is my personal site, where I write about Ruby, programming, and any of my varied fascinations.
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Optimizing Ruby's JSON, Part 1
I was recently made maintainer of the json gem, and aside from fixing some old bugs, I focused quite a bit on its performance, so that it is now the fastest JSON parser and generator for Ruby on most benchmarks.
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Algorithms we develop software by
Pathfinding applied to the software solution domain
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Safe relational database queries using the Rust type system
New database library for Rust
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A quick post on Chen's algorithm
Update (April 19): Yilei Chen announced the discovery of a bug in the algorithm, which he does not know how to fix. This was independently discovered by Hongxun Wu and Thomas Vidick. At present, th…
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Piccolo – A Stackless Lua Interpreter
piccolo is an interpreter for the Lua language written in pure, mostly safe Rust with an eye towards safe sandboxing and resiliency. It uses gc-arena for its garbage collection system, and in fact gc-arena was originally created as part of piccolo .
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Three Laws of Software Complexity
I posit that most software engineers (particularly those working on infrastructural systems) are destined to wallow in unnecessary complexity due to three fundamental laws.
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Using Erlang hot code updates
One of the Erlang ecosystem's spiciest nerd snipes are hot code updates. Because it can do it. In ways that almost no other runtime can. I use Elixir which builds on Erlang and has the same capabilities.
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The web just gets better with Interop 2024
The web is amazing.
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The rev.ng decompiler goes open source
In this blog post we announce the open sourcing of the rev.ng decompiler, the start of the UI closed beta, how to try rev.ng and much more!
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The Swift compiler is slow due to how types are inferred
How a 10 year old design choice for Swift’s type checker still haunts us to this day
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Learning Solver Design: Automating Factorio Balancers
I built a Factorio belt balancer solver. From tiny 2x2 grids to a massive 16x16 monster, every step revealed new solver tricks, numeric hiccups, and devious debugging puzzles.
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The Rise of Worse Is Better (1991)
I and just about every designer of Common Lisp and CLOS has had extreme exposure to the MIT/Stanford style of design. The essence of this style can be captured by the phrase the right thing . To such a designer it is important to get all of the following characteristics right:
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What's new in the Postgres 16 query planner
Postgres 16 introduces quite a few improvements to the query planner and makes many SQL queries run faster than they did on previous versions of PostgreSQL. This post is a deep dive into 10 of the improvements, including code blocks and comparisons of query plan output between Postgres 15 & Postgres 16.
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Opening Windows in Linux with sockets, bare hands and 200 lines of C
In this post I want to create a single file C file program to open a windows inside Linux without using xlib or any similar libraries. The idea is to explore X11 protocol and see how it is used to interact with X server to create windows.
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8 months of OCaml after 8 years of Haskell in production (2023)
Dmitrii Kovanikov's Personas Web Space
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Steve Ballmer's incorrect binary search interview question
In this short video Steve Ballmer talks about a puzzle question he would ask candidates interviewing at Microsoft. Solving it is based on b...
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How much memory do you need in 2024 to run 1M concurrent tasks?
Please refer to How Much Memory Do You Need in 2024 to Run 1 Million Concurrent Tasks? - Take 2 to check the latest result.