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Git as a debugging tool
Debugging with Git Grep, Git Blame, Git Log and Git Bisect
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The latest blog posts to take off on Hacker News. 14,540 posts.
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DeWitt and Stonebraker's "MapReduce: A major step backwards" (2009)
In January 2008 David DeWitt and Michael Stonebraker published an article criticising MapReduce. As far as I can find, the article is no lon...
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Linear Algebra of Types (2019)
It gives my brain a pleasant thrum to learn new mathematics which mimics the algebra I learned in middle school. Basically this means that the new system has operations with properties that match those of regular numbers as much as possible. Two pretty important operations are addition and multiplication with the…
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Garbage collection for systems programmers (2023)
Yet another programming blog. Thoughts on software and related misadventures.
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Linux Text Manipulation
learning a lot about sed, awk and other commands by making a spotify statusbar widget
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A step beyond Rust's pattern matching
Projects and articles by Chris Gioran
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How (and why) to run SQLite in production
This is my personal site, where I write about Ruby, programming, and any of my varied fascinations.
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Write OpenAPI with TypeSpec
Why TypeSpec is the best way to write OpenAPI
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Tech Debt: My Rust Library Is Now a CDO
Bringing the great successes of financial engineering to Rust.
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Building an email-to-calendar LLM
Talk is cheap, show me the code Introduction A common problem my friends and I have is receiving actionable emails whose priorities are medium level. They do require action of some sort ($ \geq lowest\ priority$), but the action is due in the near future ($\leq highest\ priority$). I tend to skim over these emails…
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Two open source projects with great architecture documentation
esbuild and Redis1 are two examples of codebases with exceptional documentation. Through their READMEs, changelogs, architecture documents, and code comments, both projects explain their design in such a way that someone new to the codebase can understand where things are, how things are done, and why they are done…
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Bump Allocation: Up or Down?
Back in 2019, Nick Fitzgerald published always bump downwards, an article making the case that for bump allocators, bumping “down” (towards lower addresses) is better than bumping up. The biggest reasons for this are bumping up requires 3 branches vs 2 for bumping down and rounding down requires fewer instructions…
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Backpressure explained – the resisted flow of data through software (2019)
Backpressure is something nearly every software engineer will have to deal with at some point, and for some it’s a frequent problem. But…
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Who killed the network switch? A Hubris Bug Story
A Hubris Bug Story
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Why choose async/await over threads?
A common refrain is that threads can do everything that async/await can, but simpler. So why would anyone choose async/await?
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Mutt on Windows Without WSL
I have this weird hobby of trying to get good unix tools to run natively on Windows. I find this is the most efficient use of my laptop's resources, and therefore the nicest experience. WSL is nice, but it takes up a lot of RAM on my system. I prefer to use MSYS2 . Getting unix tools to work correctly under MSYS2 is a…
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Creating an autopilot in X-Plane using Python
Introduction Today’s post will take us in a slightly different direction than the last few. Today’s post will be about hooking up some Python code to the X-Plane flight simulator to enable development of an autopilot using PID (proportional-integral-derivative) controllers. I’ve been a fan of flight simulators for…
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After 41 years, my first assembly program on my first computer, the Tomy Tutor
We got it in 1983, I think, so it only took me about 41 years to get around to it. This Tomy Tutor isn't a replacement system I secondarily ...
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Fundamentals of Object Storage in Elixir
I did a livestream where I talked about Object Storage. The how and why. The Bad Old Days. And also the neat and interesting stuff just beyond the basics. I figured I'd cover that in text as well.
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Array Languages: R vs. APL (2023)
I’ve been learning at least one new programming language a month through Exercism which has been really fun and interesting. I frequently say that “every language you learn teaches you something about all the others you know” and with nearly a dozen under my belt so far I’m starting to worry about the combinatorics of…
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The C++ Killers (Not You, Rust)
All the “C++ killers”, even these which I wholeheartedly love and respect like Rust, Julia, and D, help you write more features with fewer bugs, but they don't much help when you need to squeeze the very last FLOPS from the hardware you rent. As such, they don’t have a competitive advantage over C++. Or, for that…
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Focus by Automation
I’ve invested leisure time to save time when I’m working hard, not to save keystrokes but to save mental energy for the project at hand.
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Why does an extraneous build step make my Zig app 10x faster?
For the past few months, I’ve been curious about two technologies: the Zig programming language and Ethereum cryptocurrency. To learn more about both, I’ve been using Zig to write a bytecode interpreter for the Ethereum Virtual Machine. Zig is a great language for performance optimization, as it gives you fine-grained…
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Regex character "$" doesn't mean "end-of-string"
This article is about a bit of surprising behavior I recently discovered using Python's regex module (re) while developing SBOM tooling for CPython. Folks who've worked with regular expressions be...
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Build systems a la carte: theory and practice (2020)
Andrey Mokhov, Neil Mitchell, Simon Peyton Jones Published in Journal of Functional Programming, Vol 30(E11) View PDF Download BibTex