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OpenLogi

https://openlogi.org/en
672•amatheus•8h ago•186 comments

Cerebras CS-4

https://www.cerebras.ai/cs4
279•sunils34•9h ago•198 comments

The Two Factions of C++

https://herecomesthemoon.net/2024/11/two-factions-of-cpp/
19•signa11•3d ago•9 comments

Palomar: A registry of Lean verified mathematics

https://terrytao.wordpress.com/2026/08/18/palomar-a-registry-of-lean-verified-mathematics/
103•matt_d•7h ago•16 comments

Supersonic Trebuchet [video]

https://www.youtube.com/watch?v=Co57SfcT-h0
106•CharlesW•4d ago•30 comments

Being ambitious and being a dad

https://nicholascharriere.com/blog/being-ambitious-and-being-a-dad/
497•nichochar•2d ago•305 comments

A 3D fruit fly on macOS desktop powered by the real FlyWire connectome

https://github.com/DenisSergeevitch/desktop-fly
279•phoenix120•12h ago•106 comments

Scientists stunned by children's lung recovery in ultra low emission zone

https://www.bbc.com/news/articles/c1l1r1zne1ro
260•dabinat•9h ago•192 comments

How does IKEA come up with names for its products?

https://www.ikea.com/se/en/customer-service/knowledge/articles/6f564c4d-2ccc-46de-b643-545a3948dc...
349•NaOH•15h ago•231 comments

Solo – a .so loader for static Linux binaries

https://github.com/pg83/solo
145•zX41ZdbW•10h ago•155 comments

λλ: A Programming Language for Silicon Photonics

https://dl.acm.org/doi/10.1145/3789240.3829151
20•matt_d•3h ago•5 comments

The Vietnam Binh Chau (Chau Tan) Late Tang Wreck

https://www.koh-antique.com/client/tangwreck/tangwreck.html
39•teleforce•8h ago•3 comments

AI usage patterns in software teams

https://linear.app/data
139•giuliomagnifico•11h ago•70 comments

Where Human Sleep Went Wrong

https://nautil.us/where-human-sleep-went-wrong-1283797
53•XzetaU8•2h ago•42 comments

Activation Energy is a good model for a lot of things

https://homosabiens.substack.com/p/activation-energy-is-a-good-model
6•surprisetalk•4d ago•0 comments

Finger: the 1971 social network that never died

https://en.andros.dev/blog/54572bc7/finger-the-1971-social-network-that-never-died/
214•andros•1d ago•67 comments

The Mojo language (by Modular, now Qualcomm) is now open-source

https://www.modular.com/blog/modcon-announcements
42•flaburgan•2h ago•16 comments

Show HN: Automatically detect and patch walking-dead states in Sierra games

https://github.com/katiahayati/lucasartsifier/
61•wkfauna•8h ago•23 comments

CUDA Shared Memory Swizzling

https://leimao.github.io/blog/CUDA-Shared-Memory-Swizzling/
50•jxmorris12•5d ago•2 comments

Meta's blockbuster trial draws parallels to big tobacco

https://www.economist.com/business/2026/08/18/metas-blockbuster-trial-draws-parallels-to-big-tobacco
235•newsomix9xl•7h ago•185 comments

Turbovec – Google's TurboQuant for vector search in Rust

https://github.com/RyanCodrai/turbovec
250•fittingopposite•15h ago•31 comments

A 25-year-old video patent just expired, ending a legal headache for Linux

https://www.xda-developers.com/25-year-old-brazilian-video-patent-expired-legal-headache-linux/
192•theanonymousone•3d ago•73 comments

And then the men with guns tell you to do it anyway

https://shkspr.mobi/blog/2026/08/and-then-the-men-with-guns-tell-you-to-do-it-anyway/
321•_djo_•16h ago•207 comments

Claude writing a macOS driver for my obscure HP printer built only for Windows

https://twitter.com/kuberwastaken/status/2089377982536388964
202•porridgeraisin•21h ago•158 comments

The Amazon tax

https://seths.blog/2026/08/the-amazon-tax/
1177•herbertl•20h ago•628 comments

Looking for Missed Alarm Bugs in a Formal Verification Tool

https://blog.regehr.org/archives/2124
13•luu•5d ago•0 comments

Show HN: Interactive, animated architecture of any HuggingFace models

https://modelmap.cc
81•lizhaoliu•10h ago•9 comments

Apple announces changes for apps in the European Union

https://www.apple.com/newsroom/2026/08/apple-announces-changes-for-apps-in-the-european-union/
192•newusertoday•17h ago•273 comments

Tiny satellite will use the dark side of the Moon as a shield

https://www.cam.ac.uk/research/news/tiny-satellite-will-use-the-dark-side-of-the-moon-to-eavesdro...
40•NordStreamYacht•8h ago•7 comments

Beware Management Consultants

https://about.iceland.co.uk/our-story/the-dark-ages/beware-management-consultants/
549•KolmogorovComp•14h ago•149 comments
Open in hackernews

The Scalar Select Anti-Pattern

https://matklad.github.io/2025/05/14/scalar-select-aniti-pattern.html
47•goranmoomin•1y ago

Comments

castratikron•1y ago
As long as processing one event does not affect any of the other events in the batch. E.g. events are file IO, and processing one event causes another event's descriptor to get closed before that event can be processed.
wahern•1y ago
If the close routine on an event source, or the low-level (e.g. epoll) registration, deregistration, and dequeueing logic doesn't know how to keep polling and liveness state consistent between userspace and the kernel, they've got much bigger problems. This looks like Rust code so I would hope the event stream libraries are, e.g., keeping Rc'd file objects and properly managing reference integrity viz-a-viz kernel state before the application caller ever sees the first dequeued event in a cycle. This is a perennial issue with event loop libraries and buggy application code (in every language). One can't just deal with raw file descriptors, call the close syscall directly, etc, hoping to keep state consistent implicitly. There's an unavoidable tie-in needed between application's wrappers around low-level resources and the event loop in use.
taeric•1y ago
I'm not entirely clear on what the proposal is at the end? Seems that the long term answer as to "which of these implications to pursue" is "all of them?" Simply taking in a batch of instructions doesn't immediately change much? You still have to be able to do each of the other things. And you will still expect some dependencies between batches that could possibly interact in the same ways.

In a sense, this is no different than how your processor is dealing with instructions coming in. You will have some instructions that can be run without waiting on previous ones. You will have some that can complete quickly. You will have some that are stalled on other parts of the system. (I'm sure I could keep wording an instruction to match each of the implications.)

To that end, part of your program has to deal with taking off "whats next" and finding how to prepare that to pass to the execution portion of your program. You can make that only take in batches, but you are almost certainly responsible for how you chunk them moreso than whatever process is sending the instructions to you? Even if you are handed clear batches, it is incumbent on you to batch them as they go off to the rest of the system.

lmz•1y ago
I guess the proposal is "instead of fetching and acting on one event at a time, consider fetching all available events and look for opportunities to optimize which ones you process (e.g. by prioritization or by skipping certain events if superseded by newer ones)".
taeric•1y ago
I mean, I got that. But you could as easily say "instead of fetching and acting on one event at a time, fetch and triage/route instructions into applicable queues."

In particular, there is no guarantee that moving to batches changes any of the problems you may have from acting on a single one at a time. To that end, you will have to look into all of the other strategies sooner or later.

Following from that, the problem is not "processMessage" or whatever. The problem is that you haven't broken "processMessage" up into the constituent "receive/triage/process/resolve" loop that you almost certainly will have to end up with.

malkia•1y ago
in CPU's - pipelining!
jchw•1y ago
I believe something similar is going on internally in Windows with event queues. It coalesces and prioritizes input events when multiple of them pile up before you're able to pop new events off of the queue. (For some events, e.g. pointer events, you can even go and query frames that were coalesced during input handling.) On the application/API end, it just looks like a "scalar select" loop, but actually it is doing batching behavior for input events!

(On the flip side, if you have a Wayland client that falls behind on processing its event queue, it can crash. On the whole this isn't really that bad but if you have something sending a shit load of events it can cause very bad behavior. This has made me wonder if it's possible, with UNIX domain sockets, to implement some kind of event coalescing on the server-side, to avoid flooding the client with high-precision pointer movement events while it's falling behind. Maybe start coalescing when FIONREAD gets to some high watermark? No idea...)