Async Ruby
libuv
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Async Ruby | libuv | |
---|---|---|
20 | 75 | |
1,983 | 23,219 | |
2.3% | 1.4% | |
7.8 | 9.1 | |
9 days ago | 7 days ago | |
Ruby | C | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Async Ruby
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EventMachine Performance Spikes
The Async gem is the natural successor, It's actively maintained, and allows you write synchronous code is if it wasn't non-blocking, and most libraries don't need any special support for Async (exceptions are gems with C extensions that do I/O and DB libraries with connection pooling that would otherwise be thread-based).
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Philosophy of Coroutines
https://github.com/socketry/async uses coroutines and I think in general it’s been a great model with very few downsides in practice.
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Is ruby really slow?
There's async I/O. Here's a library that leans on Ruby 3's fiber scheduler.
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Show HN: Goru, an experimental, Go-inspired concurrency library for Ruby
Hey folks, wanted to show this off and get feedback. Still early/experimental but there are quite a few concepts I'm excited about here. This project came about while writing a program in Go and loving its approach to concurrency. Being a long-time Rubyist I immediately started to think about what similar concepts might look like in Ruby.
I set out with two main design constraints:
1. Lightweight: I didn't want routines to be backed by fibers or threads. Having been involved some in the async project (https://github.com/socketry/async), I had some experience using fibers for concurrency but was curious if they could be avoided.
2. Explicitness: Routine behavior must be written to describe exactly how it is to behave. I always felt like concurrent code was hard to fully understand because of the indirection involved. On the spectrum between tedium and magical I wanted to err more on the side of tedium with Goru.
Goru routines are just blocks that are called once for every tick of the reactor. It is up to the developer to implement behavior in terms of a state machine, where on each tick the routine takes some action and then updates the state of the routine for the next tick. This fulfills both design constraints:
1. Because routines are just blocks, they weigh in at about ~345 bytes of memory overhead.
2. Routine behavior is explicit because it is written as a state machine inside the block.
Couple more features worth noting:
* Goru includes channels for buffered reading/writing (similar to channels in Go).
* Goru ships with primitives for non-blocking IO to easily build things like http servers.
Curious your thoughts!
- Twitter (re)Releases Recommendation Algorithm on GitHub
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Simple MapReduce that melt my brain (yes, fibers there)
For those who are interested here is the question.
- How does Ruby handle parallel HTTP requests in separate threads?
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Two months into learning Ruby, it is the most beautiful language I ever learned
Welcome! Ruby isn't exactly "dying", but the hype/popularity is definitely fading. This is primarily because Ruby is no longer "new", most of Ruby's popularity came from Rails, and now Rails is no longer the "new hotness". However, Ruby still has lots of awesome features and lots of awesome other libraries and frameworks, such as the new fancy irb gem that uses reline, nokogiri, chunky_png, the async gems, Dragon Ruby, SciRuby, Ronin, and the new Hanami web framework.
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ruby has supported native async or not?
In Github, there is a Async Gem(https://github.com/socketry/async).
- Efficient IO in Linux with io_uring [pdf]
libuv
- Epoll: The API that powers the modern internet (2022)
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APIs in Go with Huma 2.0
I wound up on a different team with pre-existing Python code so temporarily shelved my use of Go for a bit, and we used Sanic (an async Python framework built on top of the excellent uvloop & libuv that also powers Node.js) to build some APIs for live channel management & operations. We hand-wrote our OpenAPI and used it to generate documentation and a CLI, which was an improvement over what was there (or not) before. Other teams used the OpenAPI document to generate SDKs to interact with our service.
- Python Is Easy. Go Is Simple. Simple = Easy
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Notes: Advanced Node.js Concepts by Stephen Grider
In the source code of the Node.js opensource project, lib folder contains JavaScript code, mostly wrappers over C++ and function definitions. On the contrary, src folder contains C++ implementations of the functions, which pulls dependencies from the V8 project, the libuv project, the zlib project, the llhttp project, and many more - which are all placed at the deps folder.
- A Magia do Event Loop
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A complete guide to the Node.js event loop
Libuv, the C library that gives Node.js its asynchronous, non-blocking I/O capability is responsible for managing the thread pool. Node.js gives you the capability of using additional threads for computationally expensive and long-lasting operations to avoid blocking the event loop.
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What is Node.js?: A Complete Guide
Node.js is written in C, C++, and JavaScript. The core components of Node.js - the V8 engine and the libuv library - are written in C++ and C, respectively, since these languages provide low-level access to system resources, making them well-suited for building high-performance and efficient applications. JavaScript is mainly used to write the application logic.
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Node v20.3.0 (Current) upgrade to libuv 1.45.0, including SIGNIFICANT performance improvements to file system operations on Linux
x8 apparently https://github.com/libuv/libuv/pull/3952
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Node.js – v20.3.0
Notably upgrades to libuv 1.45 which has io_uring support. Faster file system access! Awhh yeah, it's on.
Remarkable what a mild & unintrusive PR adding io_uring was. https://github.com/libuv/libuv/pull/3952
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Using Parallel Processing in Node.js and its Limitations
Well, the single-threaded nature ultimately leads to its biggest downfall. Node.js utilizes a synchronous event loop engineered using Libuv that takes in code from the call stack and executes it.
What are some alternatives?
Concurrent Ruby - Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.
libevent - Event notification library
EventMachine - EventMachine: fast, simple event-processing library for Ruby programs
Boost.Asio - Asio C++ Library
Polyphony - Fine-grained concurrency for Ruby
libev - Full-featured high-performance event loop loosely modelled after libevent
Celluloid - Actor-based concurrent object framework for Ruby
tokio-uring - An io_uring backed runtime for Rust
Sequel - Sequel: The Database Toolkit for Ruby
uvw - Header-only, event based, tiny and easy to use libuv wrapper in modern C++ - now available as also shared/static library!
net-ssh - Pure Ruby implementation of an SSH (protocol 2) client
C++ Actor Framework - An Open Source Implementation of the Actor Model in C++