countwords VS leocad

"dang, I didn't know that was 50x faster than the idiomatic way" or "hey, I didn't know that this implementation in the stdlib prioritized this over that and made this so slow, that's interesting" -- .e.g, there's some kinda neat language details to be found in something like Ben Hoyt's community word count benchmarks repo and 'simple' vs 'optimal' code: https://github.com/benhoyt/countwords

It benchmarks programs that count the total number of unique words in some input. It's not exactly equivalent to your problem, but it's similarish. All of the programs used some kind of hash map for lookups, but I contributed a program that used a trie. Its performance in my experience varies depending on the CPU interestingly enough. On my old CPU (i7-6900K) it was a little slower, but on my new cpu (i9-12900KS) it was faster.

Why not read the source code? :-)

I wrote comments explaining things: https://github.com/benhoyt/countwords/blob/8553c8f600c40a462...

My own code example of a drastic speed up (~25%) simply replacing a couple of for loops with iters: https://github.com/benhoyt/countwords/pull/115

And yet Go was faster than Rust in a simple app that count words: https://benhoyt.com/writings/count-words/

> but the performance profiles & characteristics that we must know about in order to make a choice on which tool to use. And it shouldn't be that each user has to figure it out on their own, dig into PR's or whatever.

That's an interesting take – I like the idea of a catalog of standard tasks with implementations in several languages as well as their performance characteristics. I suppose Rosetta Code gets the ball rolling with this, but it's missing some performance metrics. It reminds me of [Ben Hoyt's piece](https://benhoyt.com/writings/count-words/) on counting unique words in the KJV Bible in different languages.

This article shows that map lookups can be optimized by using the (unintuitive) pattern:

For an alternative have a look to LeoCAD:

- compatible with the LDraw Standard (used by BrinkLink Studio & LEGO Digital Designer)

- work on Windows, Mac & Linux

- GPL 2

https://www.leocad.org/

This is a short animation of a Lego Star Wars X-Wing taking off. I built the models using LeoCAD, and then exported them from there into Blender 3.4. The Lego material was made by me (you can download it here). Textures are from AmbientCG, and the HDRI is from Poly Haven. This render was my first time using Natron for some compositing. The animation was rendered at 1080p with 1024 samples.

Your Version 2.0: Install LeoCad and design a better version for free: https://www.leocad.org/

Can you just export a minifig from LeoCAD

I thought the same at first but nope, it’s definitely called LeoCAD: https://www.leocad.org/

This is a Lego Architecture model of San Francisco. I built the model using LeoCAD, and then exported it into Blender 3.3. I did a bit of geometry cleanup so I could subdivide and bevel the edges of some pieces. I made the Lego material myself (you can download it here). Most of the textures are from AmbientCG. The scene is lit by an HDRI from Poly Haven. Rendered at 4k with 4096 samples. I normally use the undenoised (non-denoised? adenoised? noiseful?) renders as the main ones, but because this is an interior scene, I used the denoised versions. For the undenoised renders, as well as scene views and the compositing setup, check out whocompute.com/img/62a9f8

A Lego X-Wing I made. I built the model in LeoCAD, so all the parts are from there. It is based on Lego set #75218, with some modifications as not all the parts in the set were available in the parts library. I exported it, and did some geometry cleanup so I could bevel the edges of the pieces. The material was made by me, with scratch and fingerprint textures from AmbientCG. Lighting was done by 3 area lamps and a sun lamp. I rendered it at 8192 samples. I didn't denoise it because I thought it looked better with a little grain. Denoised and uncomposited versions are available on my website: https://whocompute.com/img/9cfd85 Feedback is welcome.

LeoCAD https://www.leocad.org/