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It's the Memory Latency, Stupid

https://pivotlake.io/blog/its-the-memory-latency-stupid/
25•ntur1337•1h ago

Comments

boricj•32m ago
I work with another team at work that uses lots of message passing, C++ virtual methods in deeply nested class hierarchies, large DOMs and off-the-shelf C++ STL containers... on a STM32MP1, which has an in-order Cortex-A7 and a pittance of cache.

On the other hand, in my team I wrote my custom C++ STL containers that allocate inline, SAX-style processing libraries and an object pool with links that use index+generations like 2000s video games... on a STM32H5 with less than a megabyte of RAM.

Mechanical sympathy feels like a lost art to people I demonstrate it to... and I had to demonstrate to the first team with benchmark numbers that I would not be the bottleneck between us by orders of magnitudes.

jordand•18m ago
I work in the games industry with exceptionally skilled system programmers that can do that too. They're getting on in age, and there's fewer programmers in the younger generations that are interested in any of it. Technology is sadly increasingly homogenising around Unreal Engine 5

GPT-5.6 Sol can beat Factorio on peaceful mode

https://ryanmadden.net/gpt-56-beats-factorio/
69•ryanmadden•1h ago•54 comments

TCP Use-After-Free: CVE-2026-98432 / CVSS 9.8

https://atlasum.net/blog/cve-2026-98432-linux-ipv4-tcp-uaf
40•oger•53m ago•16 comments

The Duty of a Scholar

https://www.daemonology.net/blog/2026-10-31-The-Duty-of-a-Scholar.html
33•gslin•1h ago•6 comments

It's the Memory Latency, Stupid

https://pivotlake.io/blog/its-the-memory-latency-stupid/
25•ntur1337•1h ago•2 comments

Molly (Signal fork) has not been updated since 3 months and is vulnerable

https://piefed.world/post/1503394
260•DeepLogin•9h ago•158 comments

Hackers hijack Egypt highway billboard and Malaysian screens to show porn

https://www.cairoreport.org/p/egypt-brazil-iraq-billboard-hack
30•entryleveljobsc•2h ago•31 comments

Jepsen: ParticleDB 1.1.4

https://jepsen.io/analyses/particledb-1.1.4
110•aphyr•6h ago•48 comments

Show HN: NES Contra (1987) port (ASM –> C and then C –> WebAssembly)

https://epoyraz.github.io/nes-contra-us/
5•tevlon•51m ago•1 comments

Do the math: How we took over ChatGPT accounts

https://www.parameter.ai/labs/we-found-a-gap-at-openai
276•armcat•9h ago•126 comments

Much Ado About None: Sentinel Values in Python

https://florianwilhelm.info/2026/10/sentinel_values/
10•sebg•1d ago•1 comments

Show HN: A language model that lives in a boot sector

https://github.com/kerlenton/bootgpt
11•kerlenton•7h ago•0 comments

Redox: Ring Buffers Project Summary

https://www.redox-os.org/news/nlnet-rb-summary/
31•g0xA52A2A•3d ago•4 comments

Noctua Fan Swap on a Calnex Rb/GPS Frequency Reference

https://www.jeffgeerling.com/blog/2026/noctua-fan-swap-calnex-rb-gps-frequency-reference/
18•aray07•2d ago•9 comments

William Nordhaus has died

https://news.yale.edu/2026/10/31/william-nordhaus-nobel-laureate-who-integrated-economics-and-cli...
25•ilreb•2h ago•1 comments

I post trained a model on Demoscenes

https://datavorous.com/writing/demoscener/
28•datavorous_•2h ago•17 comments

Simple circuits can create complex behaviors

https://aatishb.com/myriad/lets-build-a-brain/
166•aatish•4d ago•53 comments

Casio Watches of the 1980s

https://www.casio.com/us/watches/50th/Heritage/1980s/
160•karagenit•4h ago•79 comments

Reading and writing are less symmetric than you (probably) think

https://fgiesen.wordpress.com/2015/10/25/reading-and-writing-are-less-symmetric-than-you-probably...
53•luu•3d ago•18 comments

Switch Lowering in GCC

https://xoranth.net/gcc-switch/
176•signa11•12h ago•33 comments

Serbia just elected the world's brainiest parliament

https://www.science.org/content/article/serbia-just-elected-world-s-brainiest-parliament
729•input_sh•9h ago•419 comments

Digital minimalism

https://vitalik.eth.limo/general/2026/10/31/digital_minimalism.html
263•wilbertliu•13h ago•195 comments

Show HN: Ghostman – A fast, keyboard-driven TUI API client and webhook inspector

https://github.com/4yk5/Ghostman
29•4yk5•1d ago•23 comments

Malware uses LLMs to rank victims by how much they're worth

https://blog.talosintelligence.com/appraisal-by-ai-model-driven-victim-prioritization-in-the-volt...
205•khalidkhair•5h ago•108 comments

The Impact of Generative AI on Critical Thinking: Self-Reported (2025)

https://dl.acm.org/doi/full/10.1145/3706598.3713778
58•the-mitr•2h ago•38 comments

AI, Lean, and the Future of Formal Verification, with Lean Creator Leo de Moura

https://thedataexchange.media/leo-de-moura-lean-aws/
169•datascientist•2d ago•38 comments

What is a light-day? The milestone Voyager 1 is closing in on

https://science.nasa.gov/mission/voyager/voyager-1/voyager-1-what-is-a-light-day/
64•geox•4h ago•33 comments

Show HN: Marelleo, an open-source story box I built for my kids using ESP32

https://zebra.rodeo/en/blog/marelleo/
171•foOg•4d ago•46 comments

Show HN: A USB-C LTE modem that gives my computer a phone line

https://github.com/Koppar-AI/koppar-lte-modem
15•abijahkaj•4h ago•5 comments

Copyright Office is restoring copyright to something you have to work to get

https://pluralistic.net/2026/10/31/burn-berne/#unvictored
37•beardyw•2h ago•24 comments

My favourite PowerMac is a Nintendo Wii

https://virtuallyfun.com/2026/10/29/my-favourite-powermac-is-a-nintendo-wii/
367•DHowett•1d ago•109 comments