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Swatinem
Personal blog · swatinem.deprogrammingsystems
Swatinem is a personal blog at swatinem.de about programming and systems. Since 2019, 12 different Hacker News readers have linked it 17 times, most often “Optimizing Rust Enum Debugging with Perfect Hashing (2023)”. It is still writing: the last post was on 2026-08-12, and you can follow it by feed.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
HN readers link this blog for its writing on Mach-O binary format internals. The one comment praises the Mach-O writeup, especially its import binding state machine, and links the author's DWARF line program post.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Most-linked posts?
- Optimizing Rust Enum Debugging with Perfect Hashing (2023)2 people · 2 mentions · first linked 2023-08-11
- The Size of Rust Futures2 people · 2 mentions · first linked 2023-01-27
- Rust async can truly be zero-cost2 people · 2 mentions · first linked 2021-10-15
What Hacker News says?
This is a nice writeup, especially the part about the import binding FSA! These kinds of little state machines show in all sorts of image format and image format-adjacent places, like DWARF's line program[1] and location expression encoding. (Having written parsers for all three, I think Mach-O is the best "major" program image format. It's certainly the most well abstracted.) [1]: https://swatinem.de/blog/dwarf-lin…
Comment linking /blog/dwarf-lines/
on “Mach-O Binaries (2015)”Submitted GraphQL Code generators – Dreaming up the next generation of tools as a story · 18 points
HN discussionSubmitted Oil Immersion-Cooled PC as a story · 3 points
HN discussionSubmitted Farewell WebTech as a story · 3 points
HN discussionSubmitted Optimizing Rust Enum Debugging with Perfect Hashing (2023) as a story · 2 points
HN discussionSubmitted Non-lazy futures considered harmful in Rust as a story · 2 points
HN discussionSubmitted The Size of Rust Futures as a story · 2 points
HN discussionSubmitted Self-Referential Structs and Alternatives as a story · 2 points
HN discussionSubmitted Rust async can truly be zero-cost as a story · 2 points
HN discussionSubmitted Choosing a more optimal `String` type as a story · 1 points
HN discussionSubmitted Optimizing Rust Enum `Debug`-Ing with Perfect Hashing as a story · 1 points
HN discussionSubmitted A Locking War Story as a story · 1 points
HN discussionSubmitted The Magic of Scope Guards as a story · 1 points
HN discussionSubmitted The Size of Rust Futures as a story · 1 points
HN discussionSubmitted Rust async can truly be zero-cost as a story · 1 points
HN discussionSubmitted Optimizing TypeScript Memory Usage as a story · 1 points
HN discussionSubmitted Error Handling Considerations as a story · 1 points
HN discussion
