The latest blog posts to take off on Hacker News. 6,943 posts.
If you’re a developer rocking an Apple Silicon Mac and writing in Zig, congratulations - you’ve chosen the scenic route through the desert of profiling tools. It’s just you, your code, and a tumbleweed named Apple Instruments. But don’t worry - we’ll try to find some oases. Okay, it’s not that bad, but we’re far away…
Streaming gameplay from one machine to another over a network is a reasonably popular use case these days. These use cases demand very, very low latency. Every millisecond counts here. We need to:
It started with a simple thought: four bytes in a hash table bucket look just like an integer. Luckily, this one idea led to a deep dive into bit-twiddling and a 2x performance boost.
Linaro Connect 2025 showcases progress in bringing Linux on Snapdragon-Powered Devices
My attempt to create fast and cheap bulk storage by caching HDDs with SSDs on Linux, using standard lvmcache. Contains an introduction to LVM, RAID, and partitioning.
Deep-diving on the load performance of F1 websites.
Memory safety is all the rage these days. But what does the term even mean? That turns out to be harder to nail down than you may think. Typically, people use this term to refer to language...
Update on 2025-07-28: added note about Debian 13/trixie support for OpenVox (thanks, Ben Ford!)
20 years of Linux on the Desktop (part 4) par Ploum - Lionel Dricot.
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
Wendelstein 7-X—the leading fusion device of the stellarator type—achieved several new performance milestones during its latest run of experiments. Among them is a world record for triple product, the value that measures how close a fusion device is to generating net energy across the plasma.
Exploring LSM tree implementation in PostgreSQL for better write performance.
The target system was a distributed data processing platform that ran across hundreds of thousands of machines. At such scales, a 0.5% improvement would easily make up my salary going forward, and 2% was a good result for the half.
I've been working on a complex multi-model database for a few weeks now, and recently I took time to simplify and test out an idea I had on a simple key-value database. I started with the basics: A hash table in memory, a simple append-only log
Cathode Ray Dude recently did an excellent video about the history of the PC case, particularly the early- and mid-1990s, and the various mainboard layouts that pre-date the ATX standard. You should watch it. Here it is.
Yes I know about that one talk from Rob Pike.
Rafael Sadowski
We rolled out Go 1.24 and saw a memory regression. Here’s how we dug into system metrics, uncovered a bug in the runtime allocator, and worked with the Go team to help fix it.
A story about a bug with logical replication slot creation on Postgres read replicas
Making compilation pipelines fast, starting with the tokenizer
The way I was taught x86 assembly at the university had been completely outdated for many years by the time I had my first class. It was around 2008 or 2009, and 64-bit processors had already started becoming a thing even in my neck of the woods. Meanwhile, we were doing DOS, real-mode, memory segmentation and all the…
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Asynchrony is not concurrency.
How one million chessboards works
Eleven init systems enter, one init system leaves.
How hot code loading solves client-specific engineering problems in my startup Alzo
In my previous post Serving 200 million requests per day with a cgi-bin, I did some quick performance testing of CGI using a program written in Go. Go works excellently for CGI programs, for many of the same reasons it works so well for CLI programs and system daemons. But, out of curiosity, I decided to do a bit more…
Learn why Postgres LISTEN/NOTIFY doesn't scale for high-throughput use cases and what architectural alternatives Recall.ai uses in production.
Jake Gold tests how well 90s-era CGI works today, using a Go + SQLite CGI program running on a 16-thread AMD 3700X. Using CGI on modest hardware, it’s possible to …
