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Python, C, Assembly – Faster Cosine Similarity
From pure Python to AVX-512 assembly, optimizing cosine similarity reveals a 2,500x speedup through SIMD, FP16, and VNNI instructions on modern Intel CPUs.
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The latest blog posts to take off on Hacker News. 14,540 posts.
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How many CPU cores can you use in parallel?
Figuring out how much parallelism your program can use is surprisingly tricky.
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Using Zig to Unit Test a C Application
Zig is a new, independently developed low-level programming language. It’s a modern reimagining of C that attempts to retain C’s performance while embracing improvements from the last 30 years of tooling and language design. Zig makes calling into C code easier than any other language I’ve used. Zig also treats unit…
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Church vs. Curry Types
Static vs dynamic typing debates often flounder because the debators see from two different perspectives without knowing it. Learning to identify the two perspectives can calm the discussion. The tension between the two perspectives has led to Gradual Typing and other technologies.
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Interactive Code Cells
Like Jupyter notebooks, but for any language.
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Tracking Java native memory with JDK flight recorder
As regular readers of this blog will now, JDK Flight Recorder (JFR) is one of my favorite tools of the Java platform. This low-overhead event recording engine built into the JVM is invaluable for …
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So you want custom allocator support in your C library
Users of mature C libraries conventionally get to choose how memory is allocated — that is, when it cannot be avoided entirely . The C standard never laid down a convention — perhaps for the better — so each library re-invents an allocator interface. Not all are created equal, and most repeat a few fundamental…
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Evaluating new software forges
What options are there other than GitHub?
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A Forth Vocabulary for Iteration
blog dot information dash superhighway dot net2023112 points22 commentsProgramming Languages details
I recently wrote a small 16-bit Forth for 8086 PCs running DOS. I built the basic one-liner loop words that can trivially be built with j...
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Moving from relational data to events
Knock knock? Who’s there? It’s me, Oskar, the end is near, did you know that? Ah, you know it but don’t know how to proceed? Let’s talk about the end of the CRUD world…
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Database Fundamentals
The fundamental problems a database engineer thinks about in the shower
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Maybe getting rid of your QA team was bad
If you have a QA team, please read this and give them a large raise.
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Ruby's private keyword is weird
Ruby's `private` keyword means something different compared to basically all other object-oriented languages. Most other languages don't even have a feature matching what Ruby calls `private`, but incredibly, Scala does, which it calls `protected[this]` (meaning
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Programs are games, programming is a game
(This post is now also listed on the Pickcode Blog) In 11th grade, I wrote my first program, Dingo Hopper. In the game, the player controls a png of a din...
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Htmx Is a Erlang
htmx, a disciple of hypermedia , available only in hardcover do not look for alternatives , has been manifesting itself into existence recently ( recently: after 10 years of work 1 ) and has finally reached critical mass 2 .
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Building a Web Game in C
Christmas is coming up. When I used to work at a bank the entire month of December and a bit of January we were placed under “Change Freeze”. We weren’t allowed to deploy updates to our applications during this period. The thinking was: A lot of people are away over Christmas Application changes can lead to crashes…
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The best WebAssembly runtime may be no runtime
When we think “a fast AOT WebAssembly compiler and runtime”, we typically think about V8, Wasmer, WasmEdge or Wasmtime.
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Text Editor Data Structures: Rethinking Undo
Undo and redo have been a staple operation of text editors probably since the first typo was ever made, yet there has not been a lot of innovation around refining the idea of what undo and redo could be. Let’s explore what I mean…
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Magical Fibonacci Formulae
The following Python function computes the Fibonacci sequence , without loops, recursion or floating point arithmetic:
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Building a bare-metal bootable game for Raspberry Pi in C#
How I built a graphical bootable "game" for the Raspberry Pi (or any other modern computer) in C#.
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Fixing Classical Cats: How I got tricked by 28-year-old defensive programming
Every now and then, when working on ScummVM’s Director engine, I run across a disc that charms me so much I just have to get it working right away....
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Bad NEWS, Emacs
Post by Eshel Yaron about changes for the worse in Emacs 30 registers feature
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How many lines of C it takes to execute a + b in Python
Understand the mechanics of dynamic dispatch implementation in CPython
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Fuzzy Finding with Emacs Instead of Fzf
fzf is a popular tool among command line hackers. But if you're an Emacs user, it's hard to use as it requires an interactive terminal. What if you could use Emacs to do the fuzzy finding instead of fzf?
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Scrambling eggs for Spotify with Knuth's Fibonacci hashing
In this blog post, we explore Spotify's journey from using the Fisher-Yates shuffle to a more sophisticated song shuffling algorithm that prevents clustering of tracks by the same artist. We then connect this challenge to Fibonacci hashing, and propose a novel, evenly distributed artist shuffling method.
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You are never taught how to build quality software
Learning how to build quality software is not part of computer science education. How do we learn it?
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Making noisy SVGs
Adding noise texture with only code
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A Critique on “A Critique on the OpenPGP Updates”
An occasional blog about OpenPGP keyservers and related issues