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New
The latest blog posts to take off on Hacker News. 6,945 posts.
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Engineering for Slow Internet
How to minimize user frustration in Antarctica.
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DuckDB Doesn't Need Data to Be a Database
One of the many enjoyable things about databases is that they generally try to separate how data is represented internally (say on disk) from how it is used. To the point that it has become the norm to not even store the data on the same hardware that is running the queries.
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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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Fast Shadow Stacks for Go
tl;dr : Software shadow stacks could deliver up to 8x faster stack trace capturing in the Go runtime when compared to the frame pointer unwinding that landed in go1.21. This doesn’t mean that this idea should escape from the laboratory right away, but it offers a fun glimpse into a potential future of hardware…
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Wasmi v0.32: WebAssembly interpreter is now faster than ever
After many months of research, development and QA, Wasmi’s most significant update ever is finally ready for production use. Wasmi is an efficient and versatile WebAssembly (Wasm) interpreter with a focus on embedded environments. It is an excellent choice for plugin systems, cloud hosts and as smart contract…
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Runtime code generation and execution in Go
Disclaimer: I won’t expand on why/when you want to do this kind of hack, and you should not do this unless you know exactly what you are doing. Everything I talk about here is completely unsafe and might not be accurate for the future Go versions. This is not a recommendation, but more of a fun story.
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Reclaiming IPv4 Class E's 240.0.0.0/4
Ever since the supply of fresh IPv4 address blocks was depleted there has been a number of interesting market changes, mostly around the costs to either acquire or lease IPv4 address blocks. Since the demand for IPv4 addressing has not changed that much, prices have gone up, and more providers like AWS, Hetzner, OVH…
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Evolution of the ELF object file format
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…
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Long distance sound localization with the Raspberry Pi
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…
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So good, it works on barbed wire (2001)
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...
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Making EC2 boot time faster
It's possible to cut EC2 boot time from 40 seconds to 5 seconds by combining several optimizations like root volume streaming, instance warm pools, and instance resizing.
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S3 is showing its age
I'm squarely in the trough of disillusionment with S3.
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Rare things become common at scale (2014)
Software doesn't scale through architecture and automation alone. New, more difficult problems appear that didn't exist before, causing new downstream consequences.
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How terminal works. Part 1: Xterm, user input (2021)
Hi there. I am going to post here thing about my work or my technical hobbies. This means c++, java, haskell, python, linux etc.
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Using Postgres for Everything
What Postgres for Everything means to a dev deploying all sorts of databases. Spoiler: it’s about collapsing your stack and keeping it simple.
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Beating Jeff's 3.14 Ghz Raspberry Pi 5
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.
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Transforming a QLC SSD into an SLC SSD
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!
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Visualizing algorithms for rate limiting
Smudge.ai is a Chrome extension that gives you ChatGPT-powered shortcuts in your right-click menu.
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State of the Terminal
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!…
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Making a Postgres query 1k times faster
Learn how we discovered what was slowing down large database queries, and what we did to make Postgres queries 1000x faster.
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Jepsen: Datomic Pro 1.0.7075
Datomic is a general-purpose database intended for systems of record. In many ways, Datomic is unusual. At any instant in time, the state of the database is represented by a set of [entity, attribute, value] ( EAV ) triples, known as datoms . Each datom declares that some entity (like a person) has a particular…
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Optimizing ClickHouse: Tactics that worked for us
At LaunchDarkly, we ingest nearly 100 terabytes of observability data from our customers every month.
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Fast linked lists
Using linked lists to optimize performance in a JSON schema validator.
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Upstreaming Linux kernel support for the Snapdragon X Elite
Discover the power of Snapdragon X Elite with upstreamed Linux kernel support. Explore areas of focus and unlock new potential with Snapdragon Linux today.
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Intel announces the Aurora supercomputer has broken the exascale barrier
At ISC 2024, Intel announces Aurora is the fastest AI supercomputer, has broken the exascale barrier, and details the importance of an open ecosystem in HPC and AI.
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GPUs Go Brrr
how make gpu fast?