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80386 Microcode Disassembled

https://www.reenigne.org/blog/80386-microcode-disassembled/
14•nand2mario•17m ago•0 comments

Making Deep Learning Go Brrrr from First Principles

https://horace.io/brrr_intro.html
11•tosh•38m ago•2 comments

Shipping a laptop to a refugee camp in Uganda

https://notesbylex.com/shipping-a-laptop-to-a-refugee-camp-in-uganda
528•lexandstuff•14h ago•183 comments

Rubish: A Unix shell written in pure Ruby

https://github.com/amatsuda/rubish
70•winebarrel•5h ago•30 comments

US tech firms share Dutch regulator officials' names with Senate

https://www.dutchnews.nl/2026/05/us-tech-firms-share-dutch-regulator-officials-names-with-senate/
63•zqna•1h ago•31 comments

Why Japanese companies do so many different things

https://davidoks.blog/p/why-japanese-companies-do-so-many
729•d0ks•21h ago•342 comments

BambuStudio has been violating PrusaSlicer AGPL license since their fork

https://xcancel.com/josefprusa/status/2054602354851254330
139•Tomte•4h ago•38 comments

The quadratic sandwich

https://fedemagnani.github.io/math/2026/04/08/the-quadratic-sandwich.html
70•cpp_frog•3d ago•4 comments

Improving C# Memory Safety

https://devblogs.microsoft.com/dotnet/improving-csharp-memory-safety/
25•soheilpro•1d ago•2 comments

Microsoft starts canceling Claude Code licenses

https://www.theverge.com/tech/930447/microsoft-claude-code-discontinued-notepad
319•robertkarl•18h ago•266 comments

DHS Quits Granting Green Cards–Almost

https://www.cato.org/blog/dhs-quits-granting-green-cards-almost-entirely
19•malshe•1h ago•4 comments

Project Glasswing: An Initial Update

https://www.anthropic.com/research/glasswing-initial-update
461•louiereederson•16h ago•278 comments

ArcBrush – Node-based 2D image editor

https://arcbrush.com/
24•NatKarmios•2d ago•8 comments

Yeunjoo Choi from Igalia on Chromium

https://theconsensus.dev/p/2026/05/20/yeunjoo-choi-from-igalia-on-chromium.html
31•eatonphil•2d ago•3 comments

Fast Factorial Algorithms

http://www.luschny.de/math/factorial/FastFactorialFunctions.htm
10•nill0•3d ago•3 comments

Blood Pumping Mechanism of the Hoof (2020)

https://horses.extension.org/blood-pumping-mechanism-of-the-hoof/
98•thunderbong•3d ago•29 comments

Sleep research led to a new sleep apnea drug

https://temertymedicine.utoronto.ca/news/how-decades-sleep-research-led-new-sleep-apnea-drug
179•colinprince•14h ago•102 comments

CISA tries to contain data leak

https://krebsonsecurity.com/2026/05/lawmakers-demand-answers-as-cisa-tries-to-contain-data-leak/
223•speckx•19h ago•50 comments

Deno 2.8

https://deno.com/blog/v2.8
377•roflcopter69•1d ago•158 comments

What is the history of the ERROR_ARENA_TRASHED error code?

https://devblogs.microsoft.com/oldnewthing/20260519-00/?p=112339
41•supermatou•2d ago•12 comments

A Wayland Compositor in Minecraft

https://modrinth.com/mod/waylandcraft
233•Jotalea•2d ago•52 comments

Experience: We found a baby on the subway – now he's our 26-year-old son

https://www.theguardian.com/lifeandstyle/2026/may/22/experience-found-baby-subway-now-26-year-old...
128•Michelangelo11•4h ago•35 comments

Antigravity 2.0 Tops the OpenSCAD Architectural 3D LLM Benchmark

https://modelrift.com/blog/openscad-llm-benchmark/
393•jetter•1d ago•153 comments

Neutron scattering explains why gluten-free pasta falls apart (2025)

https://phys.org/news/2025-09-science-spaghetti-neutron-gluten-free.html
77•layer8•2d ago•27 comments

Open source Kanban desktop app that runs parallel agents on every card

https://www.kanbots.dev/
229•vitriapp•18h ago•136 comments

Comparing an LZ4 Decompressor on Four Legacy CPUs

https://bumbershootsoft.wordpress.com/2026/05/09/comparing-an-lz4-decompressor-on-four-legacy-cpus/
80•tosh•3d ago•5 comments

A Forth-inspired language for writing websites

https://robida.net/entries/2026/05/21/a-forth-inspired-language-for-writing-websites
152•speckx•21h ago•17 comments

I’m writing again

https://www.cringely.com/2026/05/21/im-writing-again/
153•dan_hawkins•21h ago•39 comments

Wi-Wi is wireless time sync at 1 nanosecond

https://www.jeffgeerling.com/blog/2026/wi-wi-is-wireless-time-sync-less-than-5ns/
127•Brajeshwar•2d ago•32 comments

1940 Air Terminal Museum Begins Liquidation

https://www.1940airterminal.org/news/liquidation-of-simulators
120•weaponeer•19h ago•30 comments
Open in hackernews

OpenTelemetry protocol with Apache Arrow

https://opentelemetry.io/blog/2025/otel-arrow-phase-2/
108•tanelpoder•1y ago

Comments

andygrove•1y ago
I've just started exploring adding OpenTelemetry support to the Comet subproject of DataFusion. I'm excited to see the integration with Apache Arrow (Rust) and potentially DataFusion in the future.
SomaticPirate•1y ago
Wow, anyone able to provide a ELI5? OTel sounds amazing but this is flying over my head
theLiminator•1y ago
Not sure, but seems like it will be producing apache arrow data and carrying it across the data stack end to end from OTEL. This would be great for creating data without a bunch of duplication/redundant processing steps and exporting it in a form that's ready to query.
piterrro•1y ago
Unless I dont understand that fully (which could be the case).

This idea could fly if downstream readers will be able to read it. Json is great because anything can read it, process, transform and serialize without having to know the intrisics of the protocol.

Whats the point of using binary, columnar format for data in transit?

arccy•1y ago
better compression https://opentelemetry.io/blog/2023/otel-arrow/

You don't do high performance without knowing the data schema.

odie5533•1y ago
Is Arrow better than Parquet or Protobuf?
theLiminator•1y ago
Arrow is an in-memory columnar format, kinda orthogonal to parquet (which is an at-rest format). Protobuf is a better comparison, but it's more message oriented and not suited for analytics.
arccy•1y ago
the blog post comparison is against OTLP which is protobuf
datadrivenangel•1y ago
Not having to write to disk is great, and zero-copy in memory access is instant...
phillipcarter•1y ago
Warning: this is an oversimplification.

Performance optimization and being able to "plug in" to the data ecosystem that Apache Arrow exists in.

OpenTelemetry is pretty great for a lot of uses, but the protocol over the wire is too chunky for some applications where. From last year's post on the topic[0]:

> In a side-by-side comparison between OpenTelemetry Protocol (“OTLP”) and OpenTelemetry Protocol with Apache Arrow for similarly configured traces pipelines, we observe 30% improvement in compression. Although this study specifically focused on traces data, we have observed results for logs and metrics signals in production settings too, where OTel-Arrow users can expect 50% to 70% improvement relative to OTLP for similar pipeline configurations.

For your average set of apps and services running in a k8s cluster somewhere in the cloud, this is just a nice-to-have, but size on wire is a problem for a lot of systems out there today, and they are precluded from adopting OpenTelemetry until that's solved.

[0]: https://opentelemetry.io/blog/2024/otel-arrow-production/

potamic•1y ago
This diagram really depicts things nicely

https://opentelemetry.io/blog/2023/otel-arrow/row-vs-columna...

ahoka•1y ago
A bit hand wavy.
KAdot•1y ago
> We are interested in making OTAP pipelines safely embeddable, through strict controls on memory and through support for thread-per-core runtimes.

I'm curious about the thread-per-core runtimes, are there even any mature thread-per-core runtimes in Rust around?

jauntywundrkind•1y ago
glommio is pretty well respected. https://www.datadoghq.com/blog/engineering/introducing-glomm... https://github.com/DataDog/glommio

ByteDance also has their very fast monio. https://github.com/bytedance/monoio

Both integrate io-uring support for very fast io.

julian-datable•1y ago
Integrations with OTLP are critical to driving adoption and probably one of the biggest pain points we've encountered when adopting it ourselves (and encouraging others to the same).

Adopting OTLP without third-party support is pretty time consuming, especially is your tech stack is large and/or varied.

Re runtimes: curious about this too. Feels like the right direction if you’re optimizing a telemetry pipeline.

akdor1154•1y ago
Damn that's some scope creep if I ever saw it: 'try sending Arrow frames end to end' => 'rewrite the otel pipeline in rust'. Seems like the goals of the contributors don't exactly align with the goals of the project.

Kind of a bummer - one thing i was hoping to come out of this was better Arrow ecosystem support for golang.

gitroom•1y ago
Man Ive dipped my toes into this too, and yeah, the way everyone wants different things always shakes things up fast. Kinda love seeing where it all ends up tbh.
mike_heffner•1y ago
Thanks for sharing this — it’s a really promising direction. The advantages of Arrow for OTLP, especially when used end-to-end, are compelling given the protocol overhead of OTLP.

We’ve been thinking along similar lines with the use of Rust, particularly for OpenTelemetry collection in environments where high performance and low resource overhead are critical, such as edge and serverless. With that in mind, we’ve open-sourced a lightweight OpenTelemetry collector written in Rust to address these use cases. We’ve also developed a native Lambda extension around it, and have seen encouraging interest from folks aiming to improve cold start times.

The project is still fairly early, but we’re optimistic that Rust can open up new opportunities for efficient observability pipelines. Vendors like Datadog are also moving in this direction with their Lambda extension and appear to be adopting Rust more broadly for data-plane components.

If this resonates, feel free to take a look here: https://github.com/streamfold/rotel. We’d love to hear your thoughts on how this could be useful.