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grg0

719 karma · joined February 11, 2025

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grg0··on SIMD in the 90s: Programming Intel's Pentium MMX
Which is not to say that they are necessarily auto-vectorizing. You know wassup when you see vaddsd instead of vaddpd. And ideally you'd use AVX-512 to saturate a modern cache line if you can afford to drop support for the older devices.
grg0··on AI fuels more than half of cybercrime in Africa as scams surge – Interpol
The scams do leave voicemails now, and they use voice genAI per the parent comment.

If someone really wants to get a hold of you, they can knock on your door.

grg0··on AI fuels more than half of cybercrime in Africa as scams surge – Interpol
With all the Nigerian princes out there, you'd think one of the bastards would have already made an official claim to the throne.
grg0··on AI fuels more than half of cybercrime in Africa as scams surge – Interpol
"cringelord"

I cracked. Had never seen that used before, yet so obvious now in retrospect. Pure poetry.

grg0··on Why we write our own C and C++ inference engines
Not sure what's worse, if the AI slop content, or the AI code slop that makes the site consume 100% of a single CPU core (and if you enable GPU rendering on the browser, CPU usage is still significantly above zero.)
grg0··on Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours
Sorry, but you simply prompted an LLM and didn't even bother reviewing the output per our other discussion about pthreads. I'm not sure you can claim to be an expert, let alone put your opinion on the same level as mine.
grg0··on Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours
It wasn't me flagging, by the way.

The burden of proof also falls on the person making the claim.

grg0··on Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours
> I'm provably doing the minimum amount of work possible.

That is a very bold claim to make for the amount of render code generated by the LLM. It's not obvious what the critical path even is, which is what would bound the latency. And I mean actual code, not just some informal description of what happens.

grg0··on Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours
I see, I wasn't aware of that one. Typically I'd assign an ID, but yeah, names make things easier.
grg0··on Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours
What do you mean you didn't notice? I saw another comment about Claude below, are you not even reviewing the output?

I just browsed the project for two minutes and it's one of the first things I noticed. std::thread is more portable (Windows, if anyone cares) and allows you to pass in a lambda, which keeps the code local and also has the compiler generate the closure for you instead of having to pass function pointers and void* captures around. I don't see any advantage to using pthread directly.

grg0··on Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours
Why are you using pthread instead of std::thread?
grg0··on German carmakers flood jobs market with managers after wielding axe
Going for the extra crit chance.
grg0··on Bacteria and the Inverse Association Between Farm Exposure and Childhood Asthma
I thought it was general knowledge that growing up with animals, not necessarily in a farm, boosts your immune system for life with all the (good) shit you get exposed to.
grg0··on Metropolis 1998
Interesting use of DoF, hadn't seen that in an isometric game. Art looks really good too.
grg0··on Microsoft raises Xbox prices by up to 43%
The best part is that the era isn't gone; you can buy those and the games, and it's not even an expensive hobby. And people also know how to / can repair them.
grg0··on German carmakers flood jobs market with managers after wielding axe
But do they dual-wield?
grg0··on AI financial advice is surprisingly good, especially if you ask right questions
No offense, but: you need to get out of the house more. It'll answer your question very quickly.
grg0··on AI financial advice is surprisingly good, especially if you ask right questions
Right, that's the 'what', but not the 'how'.

> Prompt: but I don't have enough money to save, I can barely make ends meet.

> AI: I see the problem now---If you don't have enough money to save, and reducing your expenses is not an option, then the answer is clear: make more money.

grg0··on BMW Is Showing Commercials on Their Car's Dash Screens as a Treat
With or without the trunk loaded with gas cans?
grg0··on Situational Awareness down 67% in July in AI stock rout
He definitely is aware of the situation now.
grg0··on SIMD for Collision
Makes a lot of sense, thanks for expanding.
grg0··on SIMD for Collision
Yeah, and in the blog post he mentions that he had to transform the data to SoA. If he had done that alone, he might already have seen a speedup from better cache utilization.

Also, I see no mention of alignment in the post. I understand x86/AVX2 likes your load/stores to be aligned, even if it technically allows unaligned access.

grg0··on SIMD for Collision
As a SIMD noob, one thing that wasn't obvious to me is that SIMD can also speed you up if your mem throughput is underutilized by having the CPU load more data per instruction. It isn't just about compute speedups, which is typically what it's advertised for. Using perf on Linux has been very educational for me to get an intuition for modern CPU performance.
grg0··on A 77-year-old Republican man is staging a solo protest against Flock cameras
The other issue is that the company obviously has access to the streams nationwide, and they likely don't have the same oversight that a local police might have to document when/how they are used, if they have any oversight at all.
grg0··on Kimi Work
Words to live by.
grg0··on Homomorphically encrypted CIFAR-10 inference in 200ms
> Image classification without the server seeing the image.

Does a given plain image always result in the same encrypted payload?

grg0··on AWS: Inaccurate Estimated Billing Data – $1.7 billion
Look how much money AI is making.
grg0··on 11,700 Free Photos from John Margolies' Archive of Americana Architecture
The really should build the brown donut hole and the pink hot dog next to each other.
grg0··on Why do people hate the tech industry? (2023)
Get the cat back in the bag.
grg0··on Why do people hate the tech industry? (2023)
When we are on the same level, we can disagree on things.

When you have concentrated power and make a living out of fucking around with everybody else, you seed hatred.

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