13021
Event Sourcing (2005)
Capture all changes to an application state as a sequence of events.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,544 posts.
13022
On the Costs of Syscalls (2021)
It's well known that syscalls are expensive. And that software mitigations against CPU bugs (such as Meltdown) even have made them more expensive. But how expensive are they really? To begin to answer this question I wrote a small micro-benchmark in order to measure the minimal costs of a syscall …
13023
C++11 FQA anyone?
isocpp.org announced "the C++ FAQ" to which reportedly Bjarne Stroustrup and Marshall Cline will link to help boost its search rank. Good stuff; also, given that the language is >30 years old – it's about time.
13024
Claude Code feels like magic because it is iterative
Personal blog of Omar Abid
13025
Does Go Have Subtyping?
I’ve been noodling on a static type system for my current hobby language. To try to keep the language as simple as possible, I’m trying to see if I can live without subtyping. Since most of my programming experience is in object-oriented languages, I’ve been learning more about languages that lack—or at least claim to…
13026
Monterey’s memory leak and how to avoid it
How this memory leak probably occurs, which apps it affects, and what you can do to avoid it completely.
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Using Claude Code SDK to reduce E2E test time
Best of both worlds: Building an AI gatekeeper that knows exactly which tests to run for your code changes
13030
Stem, a stack-based language with metaprogramming and a C FLI
My own concatenative programming language
13031
JavaScript Obfuscation Techniques by Example
Code level discussion of web scraping, gray hat automation, growth hacking and bounty hunting
13032
An easy way to concurrency and parallelism with Python stdlib
Because life doesn't have to be hard all the time
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Go Is the New Ruby
How I fell in love with Ruby
13037
Compile-Time Evaluation in the Zig System Programming Language
Zig places importance on the concept of whether an expression is known at compile-time. There are a few different places this concept is used, and these building blocks are used to keep the language small, readable, and powerful.
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Randomness extractors: making fair coins out of biased coins
I discuss various models of biased bit sequences, and how to extract uniform random (or close to it) output bit sequences from them, illustrated with Python code.
13041
Use `nproc` and not grep /proc/cpuinfo
There’s something really quite subtle about how the nproc utility from GNU coreutils works. If you look at the man page, it’s even the very first sentence: Print the number of processin…
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The Hardest Program I've Ever Written (2015)
The hardest program I’ve ever written, once you strip out the whitespace, is 3,835 lines long. That handful of code took me almost a year to write. Granted, that doesn’t take into account the code that didn’t make it. The commit history shows that I deleted 20,704 lines of code over that time. Every surviving line has…
13044
Frameworks are for hacks, libraries for seeds
I find that I operate in one of two modes when I’m writing software. I’m either approaching a project as a quick hack or as developing software . As much as anything else, this affects how I approach the project and what kinds of results that I get.
13045
Church vs. Curry Types
Static vs dynamic typing debates often flounder because the debators see from two different perspectives without knowing it. Learning to identify the two perspectives can calm the discussion. The tension between the two perspectives has led to Gradual Typing and other technologies.
13046
The Simulated Annealing Algorithm
Simulated annealing is a method for finding a good (not necessarily perfect) solution to an optimization problem. If you're in a situation where you want to maximize or minimize something, your problem can likely be tackled with simulated annealing.
13047
Self hosted C – breakdown
I did it. It wasn't easy, but I did it. My C Compiler can compile itself. Even though it still has holes in functionality and obvious bug...
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Jsc: My New Best Friend
A friend of mine recently pointed me at a well hidden command line tool. In the JavaScript framework used by Safari and other parts of Apple’s products, there is a tool called jsc. It’s a command line interface for JavaScript that uses the same code as the rest of the system. You can find the […]
13050
Signalfd is useless
UNIX (well, POSIX) signals are probably one of the worst parts of the UNIX API, and that’s a relatively high bar. A signal can be sent to your program at any point when it’s running, and you have to deal with it somehow. Traditionally, there are three ways …