The latest blog posts to take off on Hacker News. 4,387 posts.
Updated in 2025-09. The ELF object file format is adopted by many UNIX-like operating systems. While I've previously delved into the control structures of ELF and its predecessors, tracing the historical evolution of ELF and its relationship with the System V ABI can be interesting in itself. The format consists of…
TDOA Sound Localization is determining the source of a sound when all you know is the differences in the time of arrival of the sound event…
Next time you look at a transmission line, I hope you'll focus on the big four properties: characteristic impedance, high-frequency loss, delay, and cros...
I'm squarely in the trough of disillusionment with S3.
Software doesn't scale through architecture and automation alone. New, more difficult problems appear that didn't exist before, causing new downstream consequences.
Hi there. I am going to post here thing about my work or my technical hobbies. This means c++, java, haskell, python, linux etc.
Jeff came up against a 1V limit in his video " Overclocking Raspberry Pi 5 to 3.14 GHz on Pi Day " after firmware was released to remove the 3Ghz limit.
In today's article, we're embarking on something unprecedented! We'll guide you step by step through the process of transforming an SSD equipped with QLC NANDs into an SLC SSD, significantly enhancing its durability and overall performance!
This is a companion article to my talk at Neovimconf 2023. I have been using Vim/Neovim as my full time text editor for close to 10 years. I’ve spent a lot of time in the terminal and have become very aware of the many flaws and idiosyncrasies of this bizarre platform. But I also think it gets a lot of things right!…
Using linked lists to optimize performance in a JSON schema validator.
Garbage collectors are expected to be invisible: if programmers (or even users) notice them, something is wrong. Usually, such problems are are performance problems, but there could be correctness issues as well. This makes implementing them a bit scary.
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've intermittently worked on for literally two d...
I am a minimalist, and I tend to always keep it as small as I can, so I try to use all I have in base (if it fits), plus of course some other tools needed.
Multiprocessor Synchronization was one of my favorite classes during my undergrad — it had a clear progression from theory to practice, starting at the theory of consensus numbers and moving onto atomic operations and then synchronization primitives and lock-free data structures, all from first principles. With…
A story of finding, understanding, and fixing a memory leak in our Rails app. With graphs and code!
The first thing I check when debugging latency issues in distributed systems is whether TCP_NODELAY is enabled. And it’s not just me. Every distributed system builder I know has lost hours to latency issues quickly fixed by enabling this simple socket option, suggesting that the default behavior is wrong, and perhaps…
TAI times are identified by year, month, day, hour, minute, and second. There are exactly 86400 TAI seconds in every TAI day. TAI days are labelled by the Gregorian calendar.
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.
I've been involved in the Rust project in some form or another since 2016, and it's a language I'm very comfortable using. Many Rust programmers could say the same . But, if we take a step back and are honest with ourselves, we'd admit that the road to getting to that level of comfort was difficult.
The code is a bit "experimental" but it's available in the arena-fixes branch (make sure to enable --features=development if you run it from a Git repo).
A blog mostly about Clojure programming
This post guides through decompiling Hyper-V Manager to rebuild it from source, aiming to assess its value for potential open-sourcing. It explores manual and automated decompilation processes, including troubleshooting and enhancing the tool, advocating for community-led improvements to this widely-used but neglected…
As a side-quest I recently decided to write a branchless utf8 decoder utilizing the pext or "parallel extract" instruction. It's compliant with rfc-3629 , meaning that it doesn't just naively decode the code-point but also checks for overlong encoding, surrogate pairs and such. Compiled with gcc -O3 -march=x86-64-v3…
We're going to speed up some numpy code by 100x using "unsafe Python." Which is not quite the same as unsafe Rust, but it's a bit similar, and I'm not sure what else to call it... you'll see. It's not something you'd use in most Python code, but it's handy on occasion, and I think it shows "the nature of Python” from…
In absolute terms they don’t have much overhead – think sub-microsecond for most uses. Which makes them perfectly acceptable when they’re used sporadically (e.g. only a few times per second).
mount semi-structured data (like JSON) as a Unix filesystem
