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A Heisenbug lurking in async Python
Textual is a TUI framework for Python, inspired by modern web development.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,935 posts.
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Computers as I used to love them
File synchronization can be fun and painless if you don’t have to deal with corporate bullshit.
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Building a BitTorrent client from the ground up in Go
What is the complete path between visiting thepiratebay and sublimating an mp3 file from thin air? In this post, we'll implement enough of the BitTorrent protocol to download Debian. Look at the [Source code](https://github.com/veggiedefender/torrent-client/) or skip to the [last…
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Squeeze the hell out of the system you have
When complexity leaps are on the table, there’s usually also an opportunity to squeeze some extra juice out of the system you have. By tweaking the workload, tuning performance, or supplement…
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Roblox October Outage Postmortem
Roblox is a global platform where millions of people gather together every day to imagine, create, and share experiences with each other in immersive, user-generated 3D worlds.
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Rust std fs slower than Python? No, it's hardware
Achieving Data Freedom Through Open Source and Rust
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Simple Systems Have Less Downtime
The Maersk Triple-E Class container ship is 1,300 feet long, carries over 18,000 containers across 11,000 miles between Europe and Asia, and… Its entire crew can fit inside a passenger van. As a former naval architect and a current marketing consultant to startups, I found that
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A Matter of Millimeters: The story of Qantas flight 32
How a mistake of less than half a millimeter in a single part nearly brought down the world’s largest passenger aircraft.
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I switched from macOS to Linux after 15 years of Apple
After using Macs for fifteen years, I switched to Linux as my main operating system and I’m enjoying it. Here’s an introduction to Linux that may help you too.
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I made my VM think it has a CPU fan
...so the malware would finally shut up and run
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The world in which IPv6 was a good design
. It took a look longer to read the book than to play this little web game, but you get pretty much the same thing out of the game, so I hig...
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Everyone should know SIMD
SIMD has a reputation for being complex. I've met many very good software engineers who dismiss it as something too complex to learn or a niche optimization meant for only the highest-performance software, not useful in everyday programming.
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Why fastDOOM is fast
During the winter of 2024, I restored an IBM PS/1 486-DX2 66Mhz, "Mini-Tower", model 2168. It was the computer I always wanted as a teenager but could never afford. Words cannot do justice to the joy I felt while working on this machine.
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Making a Linux home server sleep on idle and wake on demand – the simple way
Daniel P. Gross is a computer software and hardware professional based in Toronto.
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There's no reason for software to be slow anymore
The other day, I saw a viral tweet saying that people talking about how LLMs are causing slow, bloated, code are going to eat crow once they re-write everything in super-optimized assembly. We're not quite at the point where we want to write everything in assembly , but some variant of what Nolan Lawson said about…
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Initial preview of GUI app support for the Windows Subsystem for Linux
A year ago at BUILD 2020 we introduced our goal to bring Linux GUI applications to the Windows Subsystem for Linux (WSL) to run Linux GUI applications. We
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SQLite Internals: Pages and B-trees
Let's open a hex editor and see what this thing is made of
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The Unix Magic Poster
I understand the classic UNIX Magic poster by Gary Overacre was distributed at past USENIX conferences, and I’ve known of it for years but now in confinement, I’ve decided I want one to hang in my ...
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Cloud Computing Without Containers
We have a cloud computing platform called Workers. Unlike essentially every other cloud computing platform I know of, it doesn’t use containers or virtual machines. We believe that is the future of Serverless and cloud computing in general, and I’ll try to convince you why.
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Why does SSH send 100 packets per keystroke?
I made my next game twice as fast by forking go's crypto library
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The Quest for Netflix on Asahi Linux
Note: If you're here because you just want to watch Netflix on Asahi, install this (Edit: for Arch users, grab this . Fedora users can install the widevine-installer package), and then scroll down to the "Netflix-Specific Annoyances" section.
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Inside a fast CSS engine
Project Quantum is a major rewrite of Firefox’s internals to make Firefox fast. We’re swapping in parts from our experimental browser, Servo, and making massive improvements to other parts of ...
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Asahi Linux Progress Linux 7.0
Porting Linux to Apple Silicon
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QNX is now free for anything non-commercial, plus there's an RPi image
QNX is changing the game for engineers and software developers, providing free access to QNX software and resources for non-commercial use.
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Ideal OS: Rebooting the Desktop Operating System
Twitter user ekse has graciously translated this blog to Chinese. Thanks! TL;DR: By the end of this essay I hope to convince you of the following facts. First, that modern desktop operating systems are anything but. They are bloated, slow, and layered with legacy cruft that still functions only thanks to Moore's Law…
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Windows NT Kernel Contributor Explains Why Performance is Behind Other OS
I was explaining on Hacker News why Windows fell behind Linux in terms of operating system kernel performance and innovation. And out of nowhere an anonymous...
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Resurrecting a dead torrent tracker and finding 3M peers
So I was uh, downloading some linux isos, like usual. It was going slowly, so I opened up the Trackers tab in qBittorrent and saw the following: