3721
Clocking a 6502 simulator to 15GHz
6-5-0-who? The 6502 is an iconic processor that dominated home computing in the late 70s and early to mid 80s. It was used in machines ra...
New
The latest blog posts to take off on Hacker News. 6,947 posts.
3722
Computers Can Be Understood
Computers and computer systems are build up from deterministic, comprehensible, building blocks. Their operations and behaviors can be understood and reasoned about. I relate my personal beliefs and mindset on this point, and explore some manifestations and ramifications of this philosophy.
3723
Undefined behavior can result in time travel (2014)
The rules of logic no longer apply when you cross the line.
3724
3725
ReactOS 0.4.13
ReactOS is a free, opensource reimplementation of windows
3726
Untangling microservices, or balancing complexity in distributed systems
The microservices honeymoon period is over. Uber is refactoring thousands of microservices into a more manageable solution [1]; Kelsey Hightower is predicting monoliths are the future [2]; and even Sam Newman is declaring that microservices should never be the default choice, but rather a last resort [3]. What’s going…
3727
Systems that defy detailed understanding
Last week, I wrote about the mindset that computer systems can be understood, and behaviors can be explained, if we’re willing to dig deep enough into the stack of abstractions our software is built atop. Some of the ensuing discussion on Twitter and elsewhere lead me to write this followup, in which I want to run…
3728
Amazon Elastic Container Service now supports Amazon EFS file systems
It has only been five years since Jeff wrote on this blog about the launch of the Amazon Elastic Container Service. I remember reading that post and thinking how exotic and unusual containers sounded. Fast forward just five years, and containers are an everyday part of most developers lives, but whilst customers are…
3729
3730
Using SIMD to aggregate billions of values per second
How SIMD instructions make aggregations faster in QuestDB, including benchmark results and a comparison with Postgres.
3731
3732
The SeL4 Foundation: What and Why
We have created the seL4 Foundation! But what is the seL4 Foundation, and why did we create it? In a nutshell, these are the reasons (I’ll expand on them below): Provide for the longevity of …
3733
Io_uring By Example: cat, cp and a web server with io_uring
io_uring is a clever new, high-performance interface for asynchronous I/O for Linux without the drawbacks of the aio set of APIs. In this 3-part article series, we look at how to use io_uring to ge…
3734
The Adventures of OS: Starting a Process
I have taught operating systems at my university, so I will link my notes from that course here regarding processes.
3735
Hello, LineageOS 17.1
Backstreet's back again
3736
3737
3738
3739
3740
Writing an OS in Rust: Async/Await
In this post, we explore cooperative multitasking and the async/await feature of Rust. We take a detailed look at how async/await works in Rust, inclu…
3741
JITs are un-ergonomic
I lift my LAMP beside the github door. Keep ancient Fortran your storied numeric libs cries she. Give me your interpreted, your slow, the wretched refuse of your (insert pun for ‘teeming shore’).
3742
3743
How are Unix pipes implemented?
The implementation and history of an iconic Unix feature, with excerpts from the v6 Unix kernel source code, Author: Abhijit Menon-Sen
3744
3745
Getting started with bare-metal assembly
Seeing a program you wrote running directly on the bare metal is deeply satisfying to anyone who enjoys writing software. And it turns out that creating such a program from scratch is easier than it sounds. The hardest part is figuring out where to start. In this tutorial, I'll show you how to write, build and run the…
3746
Speeding up Linux disk encryption
Encrypting data at rest is vital for Cloudflare with more than 200 data centres across the world. In this post, we will investigate the performance of disk encryption on Linux and explain how we made it at least two times faster for ourselves and our customers!
3747
Little Snitch and the deprecation of kernel extensions
You probably came here because your Mac showed a message telling you that software from “Objective Development Software GmbH” (Little Snitch) loaded a system extension that will no longer be compatible with a future version of macOS and that you…
3748
Concurrent Programming, with Examples
Mention concurrency and you’re bound to get two kinds of unsolicited advice: first that it’s a nightmarish problem which will melt your brain, and second that there’s a magical programming language or niche paradigm which will make all your problems disappear.
3749
An in-depth look at OCaml’s new “best-fit” garbage collector strategy
An in-depth Look at OCaml’s new "Best-fit" Garbage Collector Strategy The Garbage Collector probably is OCaml’s greatest unsung hero. Its pragmatic approach allows us to allocate without much fear of efficiency loss. In a way, the fact that most OCaml hackers know little about it is a good sign:...
3750
Converting an old MacBook into an always-on personal Kubernetes cluster
TL;DR: I set up Minikube on an old (2012) MacBook Air and configured it to be able to connect from outside my home network so I would have an always-on Kubernetes cluster at home to experiment with.