The problem with invariants is that they change over time
Cliff L. Biffle blogged a great write-up of a debugging odyssey at Oxide with the title Who killed the network switch? Here’s the bit that jumped out at me: At the time that code was written…
The latest blog posts to take off on Hacker News. 569 posts.
Cliff L. Biffle blogged a great write-up of a debugging odyssey at Oxide with the title Who killed the network switch? Here’s the bit that jumped out at me: At the time that code was written…
Narrow waists: an idea in software architecture that relates to networking, operating systems, language design, compilers, and distributed systems.
Paul Hsieh's 6th generation x86 CPU comparision page including K6, P-II and 6x86MX geared towards the high performance software developer audience
A thought experiment on the winners, losers and new players in a cloud-driven stock, fx and commodity-trading world
Project community server: https://discord.gg/side7 On September 20th, 2022, the live-service first-person hero shooter "GUNDAM EVOLUTION" was launched. A little over a year later, on November 29th, 2023, it abruptly reached its end of life. As a passionate enthusiast of hero shooters and the Gundam franchise, the…
This is definitely not a "learn distributed systems in 21 days" post. I recommend a principled, from the foundations-up, studying of distrib...
A few years ago, I have blogged about my approach to sandboxing less-trusted applications that I have to or want to run on my main machine. The approach has changed since then, so it is tim...
I have recently released an open source tool called sotrace . It maps out the .so dependencies for a binary or library, and presents th...
Why an Intel Mac’s up to 40 Gb/s from Thunderbolt 3 is less than an Apple silicon Mac’s up to 40 Gb/s from USB4, and how you can benefit from it.
With the recent release of OpenBSD 7.5, I decided to run through my personal OpenBSD “installer” for laptop/desktop devices. The project is built off of the dwm tiling window manager and only installs a few basic packages. The last time I updated it was with the release of 7.3, so it’s been due for an minor rework.
On my journey to learn CUDA, I decided to tackle the One Billion Row Challenge with it.
PowerPC Macs were produced in huge numbers, and a lot of this hardware is still viable for use today, with professional software such as Photoshop CS2 and Propellerheads Reason. They're still good workstations, with lots of productivity software, and no always-online tracking or distractions. Originally, I got mine…
From the Zed Blog: In this episode of Zed Decoded, Thorsten and Antonio explore how we use async Rust in the Zed code base to ensure perfect cooperation with macOS to always maintain responsiveness and high-performance.
I recently implemented a small program to visualize the inner workings of a scheme that compresses floating point timeseries by XORing subsequent values. The resulting visualizations are quite neat…
Those of you who haven’t been in IT for far, far too long might not know that next month will be the 16th(!) anniversary of the disclosure of what was, at the time, a fairly earth-shattering revelation: that for about 18 months, the Debian OpenSSL package was generating entirely predictable private keys .
SQLite is fast, really fast. On a single ~40€ / m commodity server, it can sustain ~168,000 reads and ~8000 writes per second, concurrently. Because it's an embedded library designed for client-side applications such as embedded systems and phone & desktop applications, SQLite databases have to be co-located…
Combining prefix search with repeated search, to accommodate multiple styles.
I use a hardware latency tester to measure how much the VTE-based terminals improved from GNOME 45 to GNOME 46.
One thing is certain in life: if you’re getting something for a steal, someone is getting screwed, and it’s probably you elsewhere. This isn’t an anti-capitalist rant, it’s just the truth. Companies don’t exist if they don’t make money. Unless there’s some innovation, rest assured that you’re overpaying somewhere else.
I made a graphical IRC client that runs in UEFI. It’s written in Rust and leverages the GUI toolkit and TrueType renderer that I wrote for axle’s userspace. I was able to develop it thanks to the vmnet network backend that I implemented for QEMU. You can connect to an IRC server, chat and read messages, all from the…
The millisecond compute layer used for sandboxes, headless browsers, CI/builds, functions / Agents / Databases and much more. Instant boot, VM-grade isolation, and millisecond scale-to-zero, so you can ship with superior economics. Deploy on-prem, BYOC or on dedicated hosts — you own the entire stack.
Learn how you can use XDP/eBPF to get maximum bandwidth for your applications.
Preface In October 2023 I learned about HTTP/2 Rapid Reset attack, dubbed “the largest DDoS attack to date”. I didn’t have deep knowledge of HTTP/2 back then. I knew its basics like frames or HPACK but I was focusing more on HTTP/1.1 protocol and programming languages vulnerabilities. I decided to dedicate time to…
V8 features a lightweight, in-process sandbox to limit the impact of memory corruption bugs