The latest blog posts to take off on Hacker News. 1,535 posts.
CPS, or continuation-passing style, is an intermediate representation for programs, particularly functional programs. It’s used in compilers for languages such as SML and Scheme. Much of its utility comes from its support for tail calls and nonlocal control flow such as call/cc, but it can also be used as an…
We are pleased to announce the release of Ruby 3.4.0. Ruby 3.4 adds it block parameter reference,changes Prism as default parser, adds Happy Eyeballs Version...
Design decisions core to JavaScript have caused a multitude of problems for benchmarking. Is there a solution to this?
On the concepts involved in a running program. What happens, exactly, when you double click an executable file, or launch it from the command line, and it begins to execute?
Where I try to explain why I feel like C\+\+ is so much fun, and to correct some misinformation.
A long time ago, I wrote a memoization library for Ruby. It was not easy, but I learned a great deal in the process. In this article, I am share these learnings and showing you how deep the memoization rabbit hole goes.
“The What and Why of Adapter based Parameter Efficient Fine Tuning: Understanding Its Purpose and Significance”
Now this summer school draws to a close, it seems appropriate to try to put its topic into some perspective
This website is for sale! laladrik.xyz is your first and best source for information about laladrik. Here you will also find topics relating to issues of general interest. We hope you find what you are looking for!
A few years ago, on a whim, I wrote YAIOUOM. YAOIOUM was a static analyzer for Rust that checked that the code was using units of measures correctly, e.g. a distance in meters is not a distance in centimeters, dividing meters by seconds gave you a value in m / s (aka m * s^-1). YAIOUOM was an example of a refinement…
We announced JMAP 10 years ago, here is an update on its progress
There are so many buzzwords and best practices out there, but let's focus on something more fundamental. What matters is the amount of confusion developers feel when going through the code.
The missing introduction.
Recently the Dutch Electoral Board (where I am also a very part time advisor) invited me to do a talk reflecting on their open source Abacus vote tabulation software. Much software is now provided as a service, and is typically deployed continuously (CD, continuous deployment), surrounded by enough automated testing…
I’ve been using Rust for hobby projects since 2016 and have been working professionally in Rust since 2021, so I tend to consider myself pretty knowledgeable about Rust. I’m already familiar with all the common limitations of Rust’s type system and how to work around them, so it’s pretty rare that I have to “fight the…
It is good practice to regularly inspect the statements running in the hot path of your Postgres instance. One way to do this is to examine the pg_stat_statements view , which shows various statistics about the SQL statements executed by the Postgres server.
This is the story of an investigation conducted by Jochen Sprickerhof, Helmut Grohne, and myself. It was true teamwork, and we would have not reached the bottom of the …
First published 2016.
Trying to speedup my lexer using lookups and bitvectors but simd was just a step to far for me.
Improve startup time by making the classes of an application instantly available, in a loaded and linked state, when the HotSpot Java Virtual Machine starts. Achieve this by monitoring the application during one run and storing the loaded and linked forms of all classes in a cache for use in subsequent runs. Lay a…
Division is quite an expensive operation. For instance, latency of the 32-bit division varies between 10 and 15 cycles on the Cannon Lake CPU, and for Zen4 this range is from 9 to 14 cycles. The latency of 32-bit multiplication is 3 or 4 cycles on both CPU models.
The ride is coming to an end. The experiment is done. We tried, but we admit defeat. Four years ago we started adding support for an alternative HTTP backend in curl. It would use a library written in rust, called hyper. The idea was to introduce an alternative implementation of HTTP internals that you could ……
What did you do at work today? How about last week? I spent a couple of days in quarterly business reviews, and wrapped up yearly planning activities for AWS Data Exchange and AWS Marketplace. I also added some unit tests to a project that I am onboarding into.
A popular data-oriented design pattern is a Struct of Arrays. Is an Array of Enums also useful? Yes! But let’s do a refresher on struct of arrays (SoA) first:
An interactive introduction to Turing machines, the theoretical foundation of modern computing.
Practical guidance from Anthropic on building reliable AI agents, from simple composable patterns to fully autonomous systems.
A deep dive into how I use types to the fullest
How to handle and report errors effectively in Rust applications is a common question. This blog shares our experience organizing variant types of Error in a complex system like GreptimeDB, from how an error is defined to how to log the error or present it to end-users. Such a system is composed of multiple components…
Bill Caputo , through repeated conversations we've had, has convinced me of something very surprising. It was something that changed the way I think about the world, and how I do my job.
