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Theseus, a Static Windows Emulator
An new old approach to emulation.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,949 posts.
6002
GNU/Linux shell related internals
What every SRE should know about GNU/Linux shell related internals: file descriptors, pipes, terminals, user sessions, process groups and daemons # Last updated: Oct 2025 Contents File descriptor and open file description Pipes Process groups, jobs and sessions Terminals and pseudoterminals Despite the era of…
6003
SweRV – An Annotated Deep Dive of the SweRV RISC-V Core
Every 6 months, the RISC-V consortium organizes a two day workshop where various companies and research entities present work that is one way or the other related to RISC-V.
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Lamport Clocks
Last weekend I wanted to get some inspiration to write some TLA+ spec and I got my hands back on the paper Time, Clocks, and the Ordering of Events...
6007
NixOS is not reproducible
Okay, sorry for the clickbait. NixOS is not reproducible according to the Reproducible Builds definition. I keep reading people making this claim repeatedly on orange-site, even LWN.net made a similar claim when writing about Nix and Guix earlier this week.1 Along with their recently launched wiki. So, what is the…
6008
The C10K problem
It's time for web servers to handle ten thousand clients simultaneously, don't you think? After all, the web is a big place now.
6009
Tar is an ill-specified format (2015)
http://invisible-island.net/ autoconf/ Copyright © 2014–2015,2016 by Thomas E. Dickey
6010
Latency matters
A month ago, danluu wrote about [terminal and shell performance](https://danluu.com/term-latency/). In that post, he measured the latency between a key being pressed and the corresponding character appearing in the terminal. Across terminals, median latencies ranged between 5 and 45 milliseconds, with the 99.9th…
6011
Fedora Atomic Desktops
Announcing a new family of Fedora Linux spins: Fedora Atomic. This will simplify how to discuss rpm-ostree and naming of future atomic spins.
6012
TRESOR Runs Encryption Securely Outside RAM
TRESOR is a secure implementation of AES which is resistant against cold boot attacks. The basic idea behind this implementation is to store the secret key inside CPU registers rather than in RAM.
6013
Docker in Production: A History of Failure (2016)
Introduction My first encounter with docker goes back to early 2015. Docker was experimented with to find out whether it could benefit us. At the time it wasn’t possible to run a container [i…
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Switching to the i3 window manager
After using the awesome window manager for 10 years, I have switched to i3, another tiling window manager with a different philosophy.
6017
The surprising subtleties of zeroing a register (2012)
Zeroing out a CPU register seems like the simplest and most basic operation imaginable, but in fact x86 CPUs contain a surprising amount of special logic to make this operation run smoothly. The mo…
6018
AVX2 is slower than SSE2-4.x under Windows ARM emulation
If you compile your app for AVX2 and it runs on Windows ARM under Prism emulation, is it faster or slower than compiling for SSE2-4.x? I assumed it would be roughly the same — maybe slightly slower due to emulation overhead, but AVX2's wider operations would compensate. The
6019
Thoughts on the Systemd Root Exploit
Sebastian Krahmer of the SUSE Security Team has discovered a local root exploit in systemd v228 . A local user on a system running systemd v228 can escalate to root privileges. That's bad.
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Notes on ExFAT and Reliability (2021)
Is exFAT as fragile as some say?
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Converting integers to decimal strings faster with AVX-512
In most systems, integers are stored using a fixed binary representation. It is common to store integers using 32-bit or 64-bit words. You sometimes need to convert it to a string. For example, the integer 12345 might need to be converted to the five characters '12345'. In an earlier blog post, I presented the simpler…
6023
Benchmarking shell pipelines and the Unix “tools” philosophy
From the highly eclectic blog of Mark Dominus
6024
The Dual Nature of Events in Event-Driven Architecture
On Software Architecture, Programming Languages,…2024112 points63 commentsSoftware Engineering details
Given that events play such a central role in event-driven architecture, there’s an astonishing lack of agreement on what should be contained in an event. This may be rooted in the fact that, depending on your perspective, events fulfill different purposes.
6025
Exploring Windows XP on macOS ARM64
Windows XP I have a lot of fond memories of Windows XP and after feeling nostalgic, I was happy to find out that it’s relatively easy to take it for a spin on an ARM64 Mac using QEMU. I decided to install XP and an assortment of classic software one final time, taking screenshots of the whole process. This included…
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LibreELEC 10.0
The final version of LibreELEC 10.0.0 has been released, bringing Kodi (Matrix) v19.1 to LibreELEC users. Users of LibreELEC 10 Beta or RC1 get an automatic ...
6028
Faster floating point math with Rust's new API
Compilers have a hard time optimizing floating point math. Rust has a new API to fix this.
6029
No, ZFS really doesn't need an fsck tool
(This blog entry has been recovered for the sole purpose of repairing a link in Hackernews. This blog entry is otherwise hidden on the website. 2026-04-13)
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Process-Based Concurrency: Why Beam and OTP Keep Being Right
What makes BEAM and OTP different from async/await, threads, and actors. Process isolation, supervisors, and why Erlang's model keeps winning 40 years later.