Hacker News with Generative AI: Asynchronous Programming

Existential Types in Rust (lwn.net)
For several years, contributors to the Rust project have been working to improve support for asynchronous code. The benefits of these efforts are not confined to asynchronous code, however. Members of the Rust community have been working toward adding explicit existential types to Rust since 2017.
Rust, Programming Languages, Asynchronous Programming
3 points by fanf2 3 hours ago | 0 comments
Understanding Java's Asynchronous Journey (amritpandey.io)
Asynchronous programming skills are no longer “nice-to-have”; almost every programming language has it and uses it.
Java, Asynchronous Programming, Software Development
17 points by hardasspunk 10 days ago | 10 comments
How async/await works in Python (2021) (tenthousandmeters.com)
Mark functions as async. Call them with await. All of a sudden, your program becomes asynchronous – it can do useful things while it waits for other things, such as I/O operations, to complete.
Python, Asynchronous Programming, Programming Languages, Concurrency
61 points by sebg 14 days ago | 7 comments
Blazeio.SharpEvent: A Python Async Primitive That Scales to 1M Waiters with O(1) (ycombinator.com)
I’ve been working on a Python async library ([Blazeio](https://github.com/anonyxbiz/Blazeio)) and stumbled into a shockingly simple optimization that makes `asyncio.Event` look like a relic.
Python, Asynchronous Programming, Optimization, Performance, Libraries
6 points by anonyxbiz 14 days ago | 0 comments
Frustrated at Young Programmers (ycombinator.com)
Today at work I said we should use a coroutine in the server process to handle an async query call to a db. Just launch it async and don't let it block the handler.
Programming, Software Development, Asynchronous Programming, Coroutines
15 points by ninetyninenine 28 days ago | 15 comments
A Visual Journey Through Async Rust (github.com/alexpusch)
I'm a visual and experimental learner. To truly understand something, I need to tinker with it and see it run with my own eyes. To truly understand async execution, I want to visualize it. What order are things happening in? Do concurrent futures affect each other? How do tasks and threads relate? Plotting network calls or file system operations is boring. Let's draw something.
Rust, Programming, Visualization, Asynchronous Programming
151 points by PaulHoule 29 days ago | 25 comments
In React {Transitions} = F(state) (jordaneldredge.com)
TL;DR: Thinking about the React component tree as modeling a state machine can help clarify the implications of asynchronous updates and React’s concurrent features.
React, State Management, Asynchronous Programming, Concurrency
39 points by captbaritone 46 days ago | 54 comments
Your Mouse Is a Database (2012) (queue.acm.org)
Web and mobile applications are increasingly composed of asynchronous and realtime streaming services and push notifications, a particular form of big data where the data has positive velocity.
Web Development, Big Data, Real-time Applications, Asynchronous Programming
7 points by tosh 46 days ago | 1 comments
Lightweight threads and channels are better than async/await syntax (ycombinator.com)
Lightweight threads and channels are better than async/await syntax
Programming, Software Development, Asynchronous Programming
5 points by amano-kenji 48 days ago | 0 comments
Deterministic simulation testing for async Rust (s2.dev)
Rust, Programming, Testing, Asynchronous Programming
107 points by shikhar 49 days ago | 10 comments
How Async/Await Works in C# (2023) (microsoft.com)
Several weeks ago, the .NET Blog featured a post What is .NET, and why should you choose it?.
C#, .NET, Programming, Asynchronous Programming
9 points by giancarlostoro 52 days ago | 0 comments
Show HN: Aiopandas – Async .apply() and .map() for Pandas, Faster API/LLMs Calls (github.com/telekinesis-inc)
🚀 Async-Powered Pandas: Lightweight Pandas monkey-patch that adds async support to map, apply, applymap, aggregate, and transform, enabling seamless handling of async functions with controlled parallel execution (max_parallel).
Python, Pandas, Asynchronous Programming, AI
62 points by eneuman 69 days ago | 16 comments
Socrates is a state machine: sans IO with async Rust (sminez.dev)
Rust, State Machines, Asynchronous Programming
13 points by fanf2 81 days ago | 1 comments
Ask HN: event loops vs. greenthreading in modern languages (ycombinator.com)
Most explanations I've seen on "async programming" bury the reason why we're doing this in the first place. It's purely to avoid making OS threads wait on I/O in a concurrent application, such as a webserver. So languages or even libraries instead have various ways to switch tasks on a single thread. If OS threads were cheap enough to just spawn one for each request, this wouldn't be a thing.
Programming, Web Development, Asynchronous Programming, Operating Systems, Performance
7 points by hot_gril 92 days ago | 5 comments
Show HN: Kreuzberg – Modern async Python library for document text extraction (github.com/Goldziher)
Kreuzberg is a Python library for text extraction from documents. It provides a unified async interface for extracting text from PDFs, images, office documents, and more.
Python, Text Extraction, Open Source, Libraries, Asynchronous Programming
197 points by nhirschfeld 97 days ago | 75 comments
Show HN: Make Easy Async Rust (Mea), runtime-agnostic primitives (github.com/cratesland)
Mea (Make Easy Async) is a runtime-agnostic library providing essential synchronization primitives for asynchronous Rust programming.
Rust, Programming Languages, Asynchronous Programming, Libraries, Open Source
6 points by tison 100 days ago | 4 comments
Asynchronous Programming in Julia (viralinstruction.com)
Asynchronous Programming, Julia, Programming Languages
7 points by darboux 101 days ago | 0 comments
Ask HN: Who's building on Python NoGIL? (ycombinator.com)
I am interested in knowing the things the community is building specifically taking into account the NoGIL aspect of python. Like is someone building frameworks around using Threads instead of Async?
Python, NoGIL, Programming, Frameworks, Asynchronous Programming
140 points by grandimam 154 days ago | 83 comments
BlackSheep: Fast ASGI web framework for Python (github.com/Neoteroi)
BlackSheep is an asynchronous web framework to build event based web applications with Python. It is inspired by Flask, ASP.NET Core, and the work by Yury Selivanov.
Python, Web Frameworks, Asynchronous Programming
63 points by klaussilveira 156 days ago | 47 comments
Asynchronous Rust on Cortex-M Microcontrollers (2023) (memfault.com)
In the realm of embedded software, the demand for efficient and responsive applications is ever-increasing.
Rust, Microcontrollers, Embedded Systems, Asynchronous Programming
26 points by Tomte 160 days ago | 7 comments
Async closures in Rust have been stabilized (github.com/rust-lang)
This report proposes the stabilization of #![feature(async_closure)] (RFC 3668). This is a long-awaited feature that increases the expressiveness of the Rust language and fills a pressing gap in the async ecosystem.
Rust, Programming Languages, Asynchronous Programming, Feature Stabilization
33 points by sapiogram 161 days ago | 4 comments
Show HN: Lfi – a lazy functional sync, async, and concurrent iteration library (lfi.dev)
lfi is a lazy functional sync, async, and concurrent iteration library
Programming, Libraries, Functional Programming, Asynchronous Programming, Concurrency
98 points by tomeraberbach 163 days ago | 48 comments
Async Django in Production (jonathanadly.com)
We believe async Django is ready for production. In theory, there should be no performance loss when using async Django instead of FastAPI for the same tasks. Django's built-in features greatly simplify and enhance the developer experience. Using async involves some complexity, as the entire code path must be async. In AI workloads, this complexity is often a worthwhile tradeoff.
Django, Python, Web Development, Performance, Asynchronous Programming
50 points by jonathan-adly 181 days ago | 45 comments
Playground Wisdom: Threads Beat Async/Await (pocoo.org)
It's been a few years since I wrote about my challenges with async/await-based systems and how they just seem to not support back pressure well. A few years later, I do not think that this problem has subsided much, but my thinking and understanding have perhaps evolved a bit. I'm now convinced that async/await is, in fact, a bad abstraction for most languages, and we should be aiming for something better instead and that I believe to be thread.
Programming, Asynchronous Programming, Threads, Concurrency
171 points by samwillis 186 days ago | 97 comments
Async await: the worst thing to happen to programming? (andrewzuo.com)
I recently saw this meme about async and await.
Programming, Asynchronous Programming, Software Development, Memes
67 points by thunderbong 190 days ago | 140 comments
Bthreads: A Simple and Easy Paradigm for Clojure (thomascothran.tech)
Asynchronous programs are hard to reason about. But is this intrinsic to asynchrony? Or might we be using the wrong paradigms?
Clojure, Programming Languages, Asynchronous Programming, Concurrency
85 points by refset 198 days ago | 9 comments
Toasty, an async ORM for Rust (tokio.rs)
Toasty is an asynchronous ORM for the Rust programming language that prioritizes ease of use. Toasty supports SQL and NoSQL databases, including DynamoDB and Cassandra (soon).
Rust, ORMs, Databases, Asynchronous Programming
214 points by steveklabnik 212 days ago | 141 comments
Async Rust in Three Parts (jacko.io)
Rust, Programming, Asynchronous Programming
162 points by oconnor663 212 days ago | 69 comments
Blocking code is a leaky abstraction (notgull.net)
Asynchronous code does not require the rest of your code to be asynchronous. I can’t say the same for blocking code.
Asynchronous Programming, Software Development, Programming Languages
140 points by zdw 216 days ago | 145 comments
Show HN: Kameo – Fault-tolerant async actors built on Tokio (github.com/tqwewe)
Kameo is a lightweight Rust library for building fault-tolerant, distributed, and asynchronous actors.
Rust, Actors, Distributed Systems, Fault Tolerance, Asynchronous Programming
105 points by tqwewe 233 days ago | 58 comments