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PostScript’s sudden death in Sonoma
For the last 39 years, PostScript has been at the heart of the Mac, bringing desktop publishing, fonts, and the LaserWriter and other printers. It has been removed from Sonoma.
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The latest blog posts to take off on Hacker News. 6,947 posts.
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Unpacking Elixir: Resilience
The nine nines. 99.9999999% of uptime. Whether the AXD301 actually deserves to be held up as a system of nine nines seems debatable. I am not particularly interested in that debate. Erlang has a strong record for reliability and a design intended to help you as a developer and operator achieve your nines. Maybe just…
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Fiber in C++: Understanding the Basics
Fiber, a less known concept compared with coroutine, is a pretty powerful addition to cooperative multitasking. As a graphics programmer in game industry, I totally appreciate the great flexibility that fiber brings on the table. As a matter of fact, I feel the tech is a little bit underappreciated due to the lack of…
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Parsing integers quickly with AVX-512
If I give a programmer a string such as "9223372036854775808" and I ask them to convert it to an integer, they might do the following in C++: std::string s = .... uint64_t val; auto [ptr, ec] = std::from_chars(s.data(), s.data() + s.size(), val); if (ec != std::errc()) {} // I have an error ! // val … Continue reading…
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Install Windows the Arch Linux Way
Installing Windows strictly through the Command Line is an important tool to have. If windows changes the installer or out of box experience, you can bypass any changes with this guide!
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Introduction to Linux interfaces for virtual networking (2018)
Explore common Linux virtual network interfaces, including Bridge, Bonded interface, VLAN, VXLAN, MACVLAN, IPVLAN, MACVTAP/IPVTAP, and more. Learn how to create and use them effectively for your
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Ruby 3.3's YJIT Runs Shopify's Production Code 15% Faster
Ruby 3.2 YJIT has optimized the production workloads of Shopify and other companies. We encourage you to enable YJIT in production. Once Ruby 3.3 is released, it should make your application even faster.
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Apache Pinot 1.0
Introducing Apache Pinot 1.0 Release
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RabbitMQ vs. Kafka – An Architect’s Dilemma (Part 1)
RabbitMQ and Apache Kafka might appear similar but serve very different needs. Read to learn and make an informed decision suitable for your needs.
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Leveraging Rust in our Java database
A guide to adding Rust to a Java codebase with JNI and the rust-maven-plugin.
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Unix shells are generally not viable access control mechanisms any more
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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How FoundationDB works and why it works (2021)
FoundationDB is a very impressive database. Its paper won the best industry paper award in SIGMOD’21. In this post, I will explain, in detail, how FDB works and discuss a few very interesting design choices they made. It’s a dense paper packed with neat ideas. Many details (sometimes even proof of correctness) are not…
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Introduction to Immutable Linux Systems
In this article, you will learn what stands behind the label immutable when it comes to Linux systems
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Running one’s own root Certificate Authority in 2023
A tale how running your own x509 root CA – for internal services – changed in the last 20 years.
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How does Linux start a process
Stack smashing: How Linux creates the stack and runs a program. Then mess with it.
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WASI Support in Go
Go 1.21 adds a new port targeting the WASI preview 1 syscall API
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Hypervisor from Scratch (2022)
We write about Windows Internals, Hypervisors, Linux, and Networks.
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S32 Unix Clock
I've been thinking I should do more "short form" blogging. Something between microblogging and regular blogging. This is me doing that!
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Death by a Thousand Microservices
The software industry is learning once again that complexity kills
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Unix Domain Sockets vs Loopback TCP Sockets (2014)
Two communicating processes on a single machine have a few options. They can use regular TCP sockets, UDP sockets, unix domain sockets, or shared memory. A recent project I was working on used Node…
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RISC-V SBI and the full boot process
Detailed explanation on how RISC-V boot process works and what role SBI has in the RISC-V software stack. Concrete example with OpenSBI.
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How does Linux NAT a ping?
A few months ago, I found myself wondering how a command like ping 1.1.1.1 works from within a private network. In most private networks, multiple hosts connect to the Internet through a router. For IPv4, the router performs network address translation (NAT) by rewriting the original host’s source address to the…
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Why you might want async in your project
There is a common sentiment I’ve seen over and over in the Rust community that I think is ignorant at best and harmful at worst.
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Using LD_PRELOAD to cheat, inject features and investigate programs
This post assumes some basic C skills. Linux puts you in full control. This is not always seen from everyone’s perspective, but a power user loves to be in control. I’m going to show yo…
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Unpacking Elixir: Real-Time and Latency
Elixir was built on Erlang. Erlang was built to provide "consistently low latency" and a few other audacious goals. Note, this is not a hard realtime constraint. It is soft, squishy and yet, important and real. It makes Erlang unusually suitable to systems where latency matters and where a near-realtime experience is…
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What happens when you shift a register by more than the register size?
A comparative study of processor architectures.