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The most popular blog posts about software engineering on Hacker News. 21,843 posts.
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…
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
Almost exactly two years from the day we announced Entity Framework 'Magic ...
As software developers, we’ve all come across those annoying, not-so-useful error messages when using some library or framework: "Couldn’t parse config file", "Lacking permission for this operation", …
Combining Nix stores makes development environments more portable. How a layered store can bring Nix Flakes to millions of Replit users.
My last post (Android Developer Income Report) caused a lot of questions about how to jump into Android apps development. It is very surprising for me as earnings I have presented are not even clos…
How Postgres’ concurrency model coupled with long-lived transactions can degrade the performance of indexes on hot tables in your database.
Recently, we had a discussion about whether we should use native enums in PostgreSQL, or rely on regular string columns with CHECK constraints. In the end, we decided that we wanted to go with the latter.
PyPI requires new users to enable 2FA before performing management actions.
Warning: All of this doesn’t really follow any best practices for working with html, css or javascript - on the contrary: what we will be doing may look horrible to some people, and rightfully so - so you may not want to try those things at work just yet.
We are announcing a new patch release of the Crystal 1.9 series with two bugfixes.
It's not about technology for its own sake. It's about being able to implement your ideas.
I have a Computer Science degree. I attended a whole course of lectures on compilers (and have a certain fondness for “the red dragon book” as a result). However, I had never actually written a compiler from start to finish until a rainy day last weekend.
Everyone knows that debugging is twice as hard as writing a program in the first place. So if you're as clever as you can be when you write it, how will you ever debug it?
Andrew Vos's personal site
The other day I blogged here about our new Railgun software that speeds up the back haul between CloudFlare data centers and our clients' servers. At CloudFlare we're using a number of different languages depending on the task.
In the previous post, I made a case for why programming languages should have a utility library that provides small-but-commonly-needed functions. Today I’m introducing a Raku package that I hope w…
During the second World War, fighter pilots would scramble to take off. As they bumbled down the grass runway, engines open at full throttle, trying to take off on a short, bumpy track with a full load of fuel and ammunition, their heart would stop when the engine mis-fired. Was the fuel mix too rich, or too lean?…
An overview of the development of the Android and iOS mobile apps for GQueues
Forth is uncommonly used to teach programming to kids. Scripting languages like Python and visual environments like Scratch are far more popular options. But when I got the opportunity to introduce middle and high school students to programming, I chose the stack-oriented concatenative language from 1970. I was…
Let's take a look at the pros and cons of Delayed Job and Sidekiq, two major job processing systems for Rails apps.
Beginning August 13th, 2021, we will no longer accept account passwords when authenticating Git operations on GitHub.com.
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…
From the highly eclectic blog of Mark Dominus
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.
Inspirations & experiments, mainly about denotative/functional programming in Haskell
