481
I made Zig compute 33M satellite positions in 3 seconds
Update: I've since added multithreading and pushed astroz to 326M propagations/sec. Read the follow-up → I've spent the past month optimizing SGP4 propagat...
New
The latest blog posts to take off on Hacker News. 6,943 posts.
482
Can you slim macOS down?
In a quest to reduce the number of processes running in macOS Tahoe, consider the example of Time Machine backups, which can easily be replaced by 3rd party alternatives.
483
Internet Archive's Storage
Internet Archive Staff Bruce Li introduces his The Long Now of the Web: Inside the Internet Archive’s Fight Against Forgetting thus: Thi...
484
I built a 2x faster lexer, then discovered I/O was the real bottleneck
Archiving 104K files into tar.gz reduced I/O time by 43x and total processing time by 2.3x. The bottleneck was not disk speed, it was syscall overhead.
485
Unconventional PostgreSQL Optimizations
Creative ideas for speeding up queries in PostgreSQL
486
SIMD programming in pure Rust
I've recently tasted AMD Zen 5 CPUs (AWS' m8a instances) and... Whooaaa. Even before talking about GPUs and NPUs, the next 5 years of CPUs will be very exciting! For
487
200 MB RAM FreeBSD desktop
Recently I came across Lunduke post about some mysterious Vendefoul Wolf Linux distribution that uses 217 MB RAM with Devuan as base (no systemd(1) here) and XLibre X11 server along with IceWM wind…
488
Hands-On Introduction to Unikernels
Learn what a unikernel is and how it compares to a Linux container. Build and run your first unikernel inside a playground box.
489
Can You Disable Spotlight and Siri in macOS Tahoe?
If you don’t want any of their services, you can turn Siri off in its settings, and disable indexing and search in Spotlight settings. Or you can use mdutil, if you know its limitations.
490
Patching the Wii News Channel to serve local news (2025)
In keeping with my passion (?) for displaying local news articles in unexpected places , I figured it would be a fun project to try and see what it would take to display current local news on the Nintendo Wii console’s News Channel .
491
Conditions in the Intel 8087 floating-point chip's microcode
In the 1980s, if you wanted your computer to do floating-point calculations faster, you could buy the Intel 8087 floating-point coprocessor ...
492
Improving the performance of WAT parser
The personal blog of Pig Fang.
493
Native ZFS VDEV for Object Storage (OpenZFS Summit)
We presented MayaNAS at OpenZFS Developer Summit 2025, introducing objbacker.io—a native ZFS VDEV for object storage. No FUSE, direct kernel-to-SDK integration achieving 3.7 GB/s throughput.
494
AVX-512: First Impressions on Performance and Programmability
A simple, whitespace theme for academics. Based on [*folio](https://github.com/bogoli/-folio) design.
495
A 40-line fix eliminated a 400x performance gap
How a 40-line OpenJDK fix swapped slow /proc parsing for a single clock_gettime syscall, closing a 400x thread CPU-time gap hidden for 20 years.
496
vLLM large scale serving: DeepSeek 2.2k tok/s/h200 with wide-ep
How vLLM reaches 2.2k tokens per second per H200 for DeepSeek-style MoE serving with Wide-EP, async scheduling, dual-batch overlap, disaggregated serving, CUDA
497
LLVM: The bad parts
A few years ago, I wrote a blog post on design issues in LLVM IR . Since then, one of these issues has been fixed fully (opaque pointers migration), one has been mostly fixed (constant expression removal), and one is well on the way towards being fixed (ptradd migration).
498
Xfce is great
A post from David Gerard reminded me why I still use Xfce almost everywhere.
499
500
Elasticsearch was never a database
Elasticsearch is a search engine, not a database. Here's why it falls short as a system of record.
501
Gentoo Linux 2025 Review
News and information from Gentoo Linux
502
Finding and fixing Ghostty's largest memory leak
A few months ago, users started reporting that Ghostty was consuming absurd amounts of memory, with one user reporting 37 GB after 10 days of uptime. Today, I'm happy to say the fix has been found and merged . This post is an overview of what caused the leak, a look at some of Ghostty's internals, and some brief…
503
What happened to WebAssembly
Where are they now? You won't believe her new look!
504
Fixing a Buffer Overflow in Unix v4 Like It's 1973
This blog post shows how to fix a buffer overflow in the su progam of UNIX v4
505
Kernel bugs hide for 2 years on average. Some hide for 20
What I learned mining 125,000 vulnerabilities from Linux git history. The average kernel bug lives 2.1 years before discovery, but some subsystems are far worse.
506
CPU Counters on Apple Silicon: article + tool
Last time I wrote about profiling in Zig on Apple Silicon, I touched on PMU counter profiling. This time I decided to go further and create my own tool to fetch all available counters for Apple Silicon processors (M1, M2, and later). Brief explanation of PMU counters PMU (Performance Monitoring Unit) counters are…
507
I Cannot SSH into My Server Anymore (and That's Fine)
To kick off 2026, I had clear objectives in mind: decommissioning my trusty VPS and setting up its successor. Embracing a complete paradigm shift, I built myself a container-centric, declarative, and low-maintenance setup for the years to come.
508
My Snapdragon Dev Kit was healthy and working fine until a Windows update failed
My personal website and blog
509
I/O is no longer the bottleneck? (2022)
Recently Ben Hoyt published a blog post claiming that contrary to popular belief, I/O is not the bottleneck in typical programming interview problems such as counting word frequencies from a stream. Sequential read speed has come a long way, while CPU speed has stagnated.
510
So, you want to chunk really fast?
How we built memchunk - a blazing fast text chunking library using SIMD and memchr for RAG pipelines