@prologic@twtxt.net It is, yes.

I rewrote all my solutions in Rust (except for day 10 part 2) and these are the runtimes on my i7-3770 from 2013 (this measures CLOCK_PROCESS_CPUTIME_ID, not wallclock):

day01/1 [      00.000501311] Result: 1066
day01/2 [      00.000400298] Result: 6223
day02/1 [      00.000358848] Result: 12586854255
day02/2 [      00.000750711] Result: 17298174201
day03/1 [      00.000106537] Result: 17405
day03/2 [      00.000404632] Result: 171990312704598
day04/1 [      00.000257517] Result: 1626
day04/2 [      00.007495342] Result: 9173
day05/1 [      00.000237212] Result: 505
day05/2 [      00.000142731] Result: 344423158480189
day06/1 [      00.000229629] Result: 4076006202939
day06/2 [      00.000279552] Result: 7903168391557
day07/1 [      00.000204422] Result: 1622
day07/2 [      00.000283816] Result: 10357305916520
day08/1 [      00.029427421] Result: 84968
day08/2 [      00.028089859] Result: 8663467782
day09/1 [      00.000310304] Result: 4764078684
day09/2 [      00.015512554] Result: 1652344888
day10/1 [      00.000796663] Result: 375
day10/2 [      --.---------] Result: 15377 (Z3)
day11/1 [      00.000416804] Result: 753
day11/2 [      00.000660528] Result: 450854305019580
day12/1 [      00.000336081] Result: 577
day12/2 [      00.000000695] Result: no part 2

A little under 90 ms total.

On my Samsung NC10 netbook from 2011 with its Intel Atom N455 at 1.6 GHz:

day01/1 [      00.003771326] Result: 1066
day01/2 [      00.003267317] Result: 6223
day02/1 [      00.003902698] Result: 12586854255
day02/2 [      00.006659479] Result: 17298174201
day03/1 [      00.000747544] Result: 17405
day03/2 [      00.002737587] Result: 171990312704598
day04/1 [      00.001263892] Result: 1626
day04/2 [      00.044985301] Result: 9173
day05/1 [      00.001696761] Result: 505
day05/2 [      00.000978962] Result: 344423158480189
day06/1 [      00.001387660] Result: 4076006202939
day06/2 [      00.001734248] Result: 7903168391557
day07/1 [      00.001295528] Result: 1622
day07/2 [      00.001809659] Result: 10357305916520
day08/1 [      00.277251443] Result: 84968
day08/2 [      00.284359332] Result: 8663467782
day09/1 [      00.003152407] Result: 4764078684
day09/2 [      00.071123459] Result: 1652344888
day10/1 [      00.005279527] Result: 375
day10/2 [      --.---------] Result: 15377 (Z3)
day11/1 [      00.003273342] Result: 753
day11/2 [      00.005139719] Result: 450854305019580
day12/1 [      00.002857552] Result: 577
day12/2 [      00.000004421] Result: no part 2

A little over 700 ms total.

I like this. You get performance that’s more or less in the ballpark of C, but without the footguns.

If your very popular project with lots of stars on GitHub is over 10 years old, and you’re still at a pre-1.0 version because you’re using SemVer and a 1.0 would mean making some kind of commitment and that’s somehow not desirable for you, then I think you’re doing something wrong. 🤔

Got a nice conspiracy theory for you:

https://mastodon.social/@mcc/115670290552252848

Actually wait I just thought about this and realized that the precise timing of the ACTUAL GitHub seed bank, by which I mean the Arctic Code Vault, on 2020-02-02, makes it more or less a perfect snapshot of pre-Copilot GitHub. Also precisely timed before we all got brain damage from COVID. This is the only remaining archive of source code by people with a fully working sense of smell

(Bonus points because the Arctic World Archive is located in Svaldbard and that’s the name of the AI in Stacey Kade’s “Cold Eternity”.)

@prologic@twtxt.net How on earth did you do that so quickly, especially day 10? People were struggling with this a lot. 🤯

@prologic@twtxt.net Jesus, that was quick. 😅

@prologic@twtxt.net How did you optimize that? 🤔

H… Ho… How have I not heard about vim-tagbar before? 😳

https://github.com/preservim/tagbar

Bought more cheap slot plates (with bad reviews and people complaining about the pin order, because I could’nt find a product without such reviews), but those are simply correct now and just work. 🤪

(Well, one part late in the calendar might need floats, depending on how you solve it …)

@prologic@twtxt.net You won’t need floats, but 64 bit integers are mandatory. 😅

@prologic@twtxt.net Whoop, whoop! Nice! And welcome back. 😅

I’m seeing crashes in the 3D subsystem. (Gallium? Glamor? Whatever other Mesa thing they have? No idea.) In the logs I find this:

malloc(): unaligned tcache chunk detected

And that’s why I still care about Rust and want to learn more about it, even though it’s giving me so much headache and I’ve given up so many times. Because Rust currently seems to be the only popular systems programming language that tries to eliminate these error classes.

And of course “the Rust experiment” in the Linux kernel has recently been concluded as “successful”, so that alone is reason enough for me:

https://lwn.net/Articles/1049831/

Alright, Advent of Code is over:

https://www.uninformativ.de/blog/postings/2025-12-12/0/POSTING-en.html

It’s been quite the time sink, especially with the DOS games on top, but it was fun. 🥳

In case you’re wondering: All puzzles (except for part 2 of day 10) were doable in Python 1 on SuSE Linux 6.4 and ran in a finite time on the Pentium 133. Puzzle 10/2 might have been doable as well if I had better education. 🤣

May I turn your attention to this timeless masterpiece:

https://www.youtube.com/watch?v=zkyFHx4ncR0 (Terra Ferma - Floating)

@prologic@twtxt.net Yeah, but isn’t it from 2010? No widespread adoption after 15 years? Is there that much inertia? 🤔 On my box, everything just works – browser, GIMP, ImageMagick, imlib2, … 🤔

Searching the web a bit brings up lots of threads where people hate WebP. The problem being that browsers support WebP but other programs tend to be problematic … ? 🤔

@lyse@lyse.isobeef.org Yeah, no idea why that is. 🤔

@lyse@lyse.isobeef.org Nice! 🌇

Use more WebP, I guess.

• Lossless PNG, 635 kB: https://movq.de/v/b239c54838/scrot.png
  
• Lossless WebP, 469 kB: https://movq.de/v/b239c54838/scrot.webp
  
• Lossy WebP, 110 kB: https://movq.de/v/b239c54838/scrot%2Dlossy.webp
  
• Lossy JPEG, 110 kB: https://movq.de/v/b239c54838/scrot%2Dlossy.jpg

@prologic@twtxt.net That looks super humid. 😅

@prologic@twtxt.net Here you go:

(LTT = “Linus Tech Tips”, that’s the host.)

LTT: There was a recent thing from a major tech company, where developers were asked to say how many lines of code they wrote – and if it wasn’t enough, they were terminated. And there was someone here that was extremely upset about that approach to measuring productivity, because–

Torvalds: Oh yeah, no, you shouldn’t even be upset. At that point, that’s just incompetence. Anybody who thinks that’s a valid metric is too stupid to work at a tech company.

LTT: You do know who you just said that about, right?

Torvalds: No.

LTT: Oh. Uh, he was a prominent figure in the, uh, improved efficiency of the US government recently.

Torvalds: Oh. Apparently I was spot on.

In case you haven’t seen it yet:

https://movq.de/v/89c2e025ce/torvalds.mp4

Linus Torvalds about SLOC as a measurement of productivity. 😅

Haha, Amazon is full of bad reviews because the pin order doesn’t match … 🤦🤦🤦

@lyse@lyse.isobeef.org My theory is that these people simply don’t do “code archeology”. When something breaks, they don’t reach for git log. They simply don’t experience the pain that comes with bad commits / commit messages.

Or is that different in your company? 😅

But it is weird that none of the slot plates (that I can find) appear to have the correct pin order. 🤔

The two mainboards I have here use this order:

2468x
13579

But the slot plates use this:

12345
6789x

I tripped over this at first and wondered why it didn’t work.

Has this changed recently or what? 🥴

@prologic@twtxt.net Ah, shit, you might be right. You can even buy these slot plates on Amazon. I didn’t even think to check Amazon, I went straight to eBay and tried to find it there, because I thought “it’s so old, nobody is going to use that anymore, I need to buy second-hand”. 🤦🤦🤦

It really shows that I built my last PC so long ago … I know next to nothing about current hardware. 😢

Currently watching Stranger Things and all I can think of is this:

https://www.youtube.com/watch?v=HbDnxzrbxn4

@prologic@twtxt.net Bwahahaha! I tried to establish some form of “convention” for commit messages at work (not exactly what you linked to, though), but it’s a lost cause. 😂 Nobody is following any of that. Nobody wants to invest time in good commit messages. People just want to get stuff done.

I’m just glad that 80% are at least somewhat useful – instead of “wip” or “shit i screwed up”.

My current PC is from 2013, so I never even bothered to check, but as it turns out: My motherboard still has a serial port. 🤯 I thought these had long died out by then. To be honest, I didn’t have the need for one, either, not until recently … So I completely lost track if PCs have these things or not.

All I needed was one of those slot-cable-thingies. (And if the order of pins is correct, then it actually works. 🤦)

https://movq.de/v/89a67cf40f/slot.jpg

Cool! One less USB device. 😃

@prologic@twtxt.net No beak, no feathers, … looks suspicious! That’s probably a weird mammal!!1! 😅🤣

@prologic@twtxt.net Well, to be fair, if you show me any picture of a penguin (or in fact any bird), I’ll go “awwwwwww 😍” for a little while. 😅

@bender@twtxt.net And I think that plan worked! 😂

That would be my dream job: Weighing penguins. 😍

https://i.imgur.com/Wwyo7En.mp4

@itsericwoodward@itsericwoodward.com Nice to see someone else also participating! 🥳

(Btw, they don’t want us to share our inputs: https://www.reddit.com/r/adventofcode/wiki/faqs/copyright/inputs/ Yeah, it’s a bit annoying. I also have to do quite a bit of filtering on my repo …)

I meant were. You get the idea.

Also, I just realized that simple links like that turn into inline images on twtxt.net. Nice! 🥳

FWIW, day 03 and day 04 where solved on SuSE Linux 6.4:

https://movq.de/v/faaa3c9567/day03.jpg

https://movq.de/v/faaa3c9567/day04%2Dv3.jpg

Performance really is an issue. Anything is fast on a modern machine with modern Python. But that old stuff, oof, it takes a while … 😅

Should have used C or Java. 🤪 Well, maybe I do have to fall back on that for later puzzles. We’ll see.

@bender@twtxt.net Nothing will make me use Discord, though. 😅 Not voluntarily.

Most of the Advent of Code action happens on the Fediverse, I’m afraid:

https://tilde.zone/@movq/115595022987289988

There’s just way more people over there who participate. 🥴