Hacker News: Sponge5

New comment by Sponge5 in "Advent of Compiler Optimisations 2025"

Sponge5 — Tue, 02 Dec 2025 16:11:42 +0000

At my company, we have not seen any performance benefits from LTO on a GCC cross-compiled Qt application.

GCC version: 11.3 target: Cortex-A9 Qt version: 5.15

I think we tested single core and quad core, also possibly a newer GCC version, but I'm not sure. Just wanted to add my two cents.

New comment by Sponge5 in "State of Embedded: Q4 2025 Overview"

Sponge5 — Wed, 29 Oct 2025 16:54:35 +0000

it's right there in the first section:

   highlighting notable advancements in ARM-based Systems-on-Chip (SoCs) and their increasing competitiveness against traditional x86 platforms.

New comment by Sponge5 in "Root System Drawings"

Sponge5 — Sat, 18 Oct 2025 15:13:24 +0000

Recently there was an exhibition of tree root illustrations by Jitka Klimesova in Prague. I think there's potential for more art emerging from science.

New comment by Sponge5 in "Athlon 64: How AMD turned the tables on Intel"

Sponge5 — Fri, 26 Sep 2025 15:36:10 +0000

My takeaway from the article is that Itanium could have been the equivalent of Apple's switch to M1 if Intel doubled down instead of panicking.

New comment by Sponge5 in "Running Wayland Clients as Non-Root Users on Yocto"

Sponge5 — Sun, 17 Aug 2025 08:25:56 +0000

Yocto doesn't run GUI applications, it's a framework to make your own distro. The fact that many users are too lazy to create a user to run their application as, speaks of the embedded space in general rather than Yocto in particular.

> I'd suggest just looking at another distribution

You won't find one. With many vendors, it's the only option.

New comment by Sponge5 in "We built an air-gapped Jira alternative for regulated industries"

Sponge5 — Wed, 23 Jul 2025 15:08:32 +0000

This topic is beaten to death in Philosophy of Software Design - I really, really do recommend it.

New comment by Sponge5 in "Linux Kernel Defence Map – Security Hardening Concepts"

Sponge5 — Wed, 09 Apr 2025 14:09:53 +0000

> This map describes kernel security hardening. It doesn't cover cutting attack surface.

For those wondering why SECCOMP is ommited.

New comment by Sponge5 in "Boring tech is mature, not old"

Sponge5 — Tue, 11 Feb 2025 14:59:33 +0000

The age of last commit on trunk is a useless metric in isolation. The fact that it is the most prominent number on the front page of a repository is a shame.

New comment by Sponge5 in "I believe 6502 instruction set is a good first assembly language"

Sponge5 — Thu, 06 Feb 2025 14:55:49 +0000

Sounds like CTU FEE in Prague. I learned a bunch about registers, branch prediction and cache, but most of the assembly went out of my head once the class was over.

New comment by Sponge5 in "CVSS Is Dead to Us"

Sponge5 — Thu, 23 Jan 2025 17:06:24 +0000

Agreed. That being said, the CVSS calculator is useful for reminding you of factors that you may not have included in your analysis.

New comment by Sponge5 in "Ask HN: Predictions for 2025?"

Sponge5 — Mon, 23 Dec 2024 12:19:58 +0000

NextBigThing™ will eat into the attention market share of LLMs. It will be a breakthrough in one of these fields:

a) Quantum Computing b) Energy (storage/generation) c) BioTech

We will see an exciting application of Real Time Linux.

Cease-fire in UA. First negotiations about drawing new borders between UA and RU.

New comment by Sponge5 in "Ask HN: Do you backup your Emails?"

Sponge5 — Sat, 21 Dec 2024 15:00:59 +0000

I use mblaze, I find it especially useful for large mailing lists like the linux kernel.

New comment by Sponge5 in "The size of BYD's factory"

Sponge5 — Mon, 25 Nov 2024 08:53:50 +0000

> But once you have a design set in stone, outsourcing is cheaper than doing it in-house. These companies specialize in producing parts with economies of scale.

Except you need to ship the parts to your factory and still employ QA people who must check whether you got what you paid for.. If the supplier has a bad defect ratio, you must order more parts. It's not as cut-and-dry as you think.

Every time your assembly-line halts, you're paying people for twiddling their thumbs. The more external suppliers you have, the higher the risk.

New comment by Sponge5 in "Show HN: I built a(nother) house optimized for LAN parties"

Sponge5 — Mon, 18 Nov 2024 12:46:03 +0000

> Changing taxes (in either direction) really wouldn't move the needle at all.

Henry George begs to differ. He would say that you start with The One Tax and the resulting pressure on zoning will be unbearable. Good reading: "Land is a Big Deal" by Lars Doucet.

New comment by Sponge5 in "I Sent an Ethernet Packet"

Sponge5 — Mon, 11 Nov 2024 09:47:54 +0000

> Their 'STM32Cube' software gets mixed reviews

Thankfully there's more than one CMake projects on github as an alternative.

New comment by Sponge5 in "What Excessive Screen Time Does to the Adult Brain"

Sponge5 — Thu, 03 Oct 2024 09:45:32 +0000

Personally, it also makes a difference how busy the screen is. A bunch of cookie banners and popup ads immediately spikes my cortisol level.

New comment by Sponge5 in "Ask HN: How do browsers isolate internal audio from microphone input?"

Sponge5 — Tue, 09 Jul 2024 18:44:35 +0000

To spare a search: https://webrtc.googlesource.com/src/+/refs/heads/main/module...

New comment by Sponge5 in "Ask HN: Who is hiring? (June 2024)"

Sponge5 — Mon, 10 Jun 2024 13:49:19 +0000

I understand where you're coming from.. My takeaway is that a HN post is not the right tool for the job in this case. (pun not intended)

New comment by Sponge5 in "Ask HN: Who is hiring? (June 2024)"

Sponge5 — Sun, 09 Jun 2024 21:39:34 +0000

I'd say the Who's hiring post is by definition bound to not have intellectually stimulating discussion, so this logic doesn't track for me.

New comment by Sponge5 in "Ask HN: Who is hiring? (June 2024)"

Sponge5 — Mon, 03 Jun 2024 19:11:44 +0000

I wouldn't call this noise.. The job poster knows the rules and decides to break them anyway. Potentional applicants should be made aware of that.