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The most popular blog posts about software engineering on Hacker News. 1,551 posts.
I was looking into some of octosql 's benchmarks the other day and noticed a large chunk of time in DataStation / dsq is spent in encoding JSON objects. JSON is an intermediate format in DataStation and it's pretty inefficient. But the reason it's used is because almost every scripting language supported by…
Advanced Web Application Architecture allows you to spot what kind of code you're dealing with:
Post-mortem report for the outage on July 13th and 14th 2022
I spotted a new (to me) pattern which I think is pretty interesting: projects are bundling compiled binary applications as part of their Python packaging wheels. I think it’s really …
A few months ago, exhausted by a constant stream of people perennially disappointed about reward structures at companies, I made what…
Why ReSTIR is good for you.
The DeWitt clause lets database vendors forbid publishing benchmarks. What the clause is, which vendors still use it, and what you can legally publish.
The observability problem - Why is the system exhibiting this behaviour?
In C, the length of a string in marked by a 0 byte at the end of the string. Thus to determine the length of the string, one must scan it, looking for the 0 byte. Recent ARM processors have a powerful instruction set (SVE) that is well suited for such problems. It allows you … Continue reading Implementing ‘strlen’…
Recently I gave a guest lecture in a graduate level software engineering course on the value of technical writing for software engineers. This post is a sort of rough transcript of my talk. I live-…
How to disable heap (dynamic memory allocation) in an embedded application? This article goes into the details of linker files and how to detect dynamic memory allocation.
You sometimes feel the need to make all of your integers positive, without losing any information. That is, you want to map all of your integers from 'signed' integers (e.g., -1, 1, 3, -3) to 'unsigned integers' (e.g., 3,2,6,7). This could be useful if you have a fast function to compress integers that fails to ……
At Arduino we like to experiment with new technologies to figure out if we can use them to improve the tools we make for our users. We’ve recently been
At my company we use a small SQLite database. We define the schema in a single file with SQL CREATE TABLE statements. If we add tables, columns, or indexes, our application will create them automatically the next time it starts up.
Ruby can work asynchronously with just a Fiber Scheduler and a couple built-in methods - no frameworks are required! It's easy to use, scales well, and has amazing performance benefits.
It's been a while since I've last rewritten my favorite lexical analyzer :-) That post is the last in a series implementing a lexer for the TableGen language in a variety of programming languages, using multiple techniques. The last lexer written, in Go, was very fast indeed - processing 1 MiB of source in about 20…
The virtual machine? Yep, but not the Java Virtual Machine.
Note : The \037 sequence appearing in the code snippets is one character, escaped for readability.
Preparing for the next major release, where Dart only supports sound null safety
Sublime Text 4, build 4142 is out now with new features, performance improvements and bug fixes.
Veja o post original em português em How does find by example work in the Pharo Finder. How does find by example work in the Pharo Finder One of the things that looks like magic is the search for m…
Dealing with real-world data is hard. You often end up stuck between the document model of JSON and the relational model of SQL databases. There's a better way. It's called super-structured data.
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…
I occasionally do talks about curl. In these talks I often include a few slides that say something abut curl's coverage and presence on different platforms. Mostly to boast of course, but also to help explain to the audience how curl has manged to reach its ten billion installations. This is current incarnation of…
