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How I cut GTA Online loading times by 70%
GTA Online. Infamous for its slow loading times. Having picked up the game again to finish some of the newer heists I was shocked (/s) to discover that it still loads just as slow as the day it was re
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Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 4,383 posts.
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The secret inside One Million Checkboxes
Teens wrote me a secret. I found them.
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Ubuntu on Windows
Update: Here's how to get started using Ubuntu on Windows See also Scott Hanselman's blog here I'm in San Francisco this week, attendin...
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macOS command-line tools you might not know about
A comprehensive reference for advanced command-line utilities that provide unique macOS functionality.
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MacOS Catalina: Slow by Design?
In episode 379 of ATP both Marco Arment and John Siracusa described noticeable delays and stalls after upgrading to macOS 10.15.
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I ported Mac OS X to the Nintendo Wii
Mac OS X 10.0 (Cheetah) running natively on the Nintendo Wii
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Pi 1.0
Today we are shipping Pi 1.0, a hardened, minimal, extensible agent harness, alongside Pi Durable, a new experimental substrate for long-running agentic applications.
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WTF Ubuntu?
In case you missed it: CVE-2026-98432 is a critical (CVSS 9.8) bug in the Linux kernel's TCP code. It's been there since 2016, so virtually every Linux server on the planet has it, and it can be hit remotely. Anthropic says it built a working exploit that gets root on a server. A total takeover.
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GNOME has no thumbnails in the file picker and my toilets are blocked
GNOME filepicker and my toilets are broken because of culture of mediocrity.
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How a 20 year old bug in GTA San Andreas surfaced in Windows 11 24H2
After over two decades, players are now forbidden from flying a seaplane, all thanks to undefined code behavior.
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Memory Allocation
A visual introduction to memory allocation.
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Architecture.md
If you maintain an open-source project in the range of 10k-200k lines of code, I strongly encourage you to add an ARCHITECTURE document next to README and CONTRIBUTING. Before going into the details of why and how, I want to emphasize that this is not another docs are good, write more docs advice. I am pretty sloppy…
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Zenbleed
If you remove the first word from the string "hello world" , what should the result be? This is the story of how we discovered that the answer could be your root password!
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The web sucks if you have a slow connection
A couple years ago, I took a road trip from Wisconsin to Washington and mostly stayed in rural hotels on the way. I expected the internet in rural areas too sparse to have cable internet to be slow, but I was still surprised that a large fraction of the web was inaccessible. Some blogs with lightweight styling were…
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Inside the longest Atlassian outage
Hundreds of companies have no access to JIRA, Confluence and Atlassian Cloud. What can engineering teams learn from the poor handling of this outage?
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H.264 is Magic
A high level walkthrough of the basics of video compression techniques used in MPEG, AVC/H.264, codecs.
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Forking Chrome to render in a terminal
I wrote about forking Chrome to turn HTML to SVG two months ago, today we're going to do something similar by making it render into a terminal.
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Load Balancing
A bottom-up, animated guide to HTTP load balancing algorithms.
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I am building a cloud
Today is fundraising announcement day . As is the nature of writing for a larger audience, it is a formal, safe announcement. As it should be. Writing must necessarily become impersonal at scale. But I would like to write something personal about why I am doing this. What is the goal of building exe.dev ? I am already…
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Completely Silent Computer
I’ve been trying to make my computers quieter for nearly three decades. Custom liquid cooling loops, magnetically-stabilised fluid-dynamic bearings, acoustic dampeners, silicone shock absorb…
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I use zip bombs to protect my server
The majority of the traffic on the web is from bots. For the most part, these bots are used to discover new content. These are RSS Feed readers, search engines crawling your content, or nowadays AI bo
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QOI: Lossless Image Compression in O(n) Time
Introducing QOI — the Quite OK Image Format . It losslessly compresses RGB and RGBA images to a similar size of PNG, while offering a 20x-50x speedup in compression and 3x-4x speedup in decompression. All single-threaded, no SIMD. It's also stupidly simple .
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24-core CPU and I can’t move my mouse
This story begins, as they so often do, when I noticed that my machine was behaving poorly. My Windows 10 work machine has 24 cores (48 hyper-threads) and they were 50% idle. It has 64 GB of RAM an…