Seastar
µWebSockets
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Seastar | µWebSockets | |
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25 | 41 | |
7,954 | 16,637 | |
1.4% | 1.1% | |
9.7 | 8.6 | |
7 days ago | 12 days ago | |
C++ | C++ | |
Apache License 2.0 | Apache License 2.0 |
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.
Seastar
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I want to share my latest hobby project, dbeel: A distributed thread-per-core nosql db written in rust
I used glommio as the async executor (instead of something like tokio), and it is wonderful. For people wondering whether it's "good enough" or to use C++ and seastar (as I have thought about a lot before starting this project), take the leap of faith, it's fast - both in terms of run time and to code.
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How much reason is there to be multi-threaded in the k8s environment
b) It's proven now e.g Seastar, Glommio that the fastest way to run a multi-threaded application is to have one instance with one thread pinned per CPU core. Then to have fibers/lightweight threads on top handling all of the asynchronous code. Your approach of lots of instances is the slowest so there will be a ton of unnecessary thread context-switching.
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Are You Sure You Want to Use MMAP in Your Database Management System?
The most common example is DPDK [1]. It's a framework for building bespoke networking stacks that are usable from userspace, without involving the kernel.
You'll find DPDK mentioned a lot in the networking/HPC/data center literature. An example of a backend framework that uses DPDK is the seastar framework [2]. Also, I recently stumbled upon a paper for efficient RPC networks in data centers [3].
If you want to learn more, the p99 conference by ScyllaDB has tons of speakers talking about some interesting challenges.
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Why does Actix-web's handler not require Send?
I assume Tokio itself, see e.g monoio or glommio, but also Seastar for C++.
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What are some C++ projects with high quality code that I can read through?
Seastar which is a thread per core runtime written by the Scylla devs thats used in both Redpanda and Scylla as the underlying runtime. https://github.com/scylladb/seastar
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Modern JVM Multithreading • Paweł Jurczenko • Devoxx Poland 2021
I’ve seen frameworks for c++ (https://seastar.io/) and rust (https://github.com/actix/actix) which support what you’re describing out of the box.
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Who is using C++ for web development?
If you're interested in scaling and asynchronous programming in c++ I highly recommend you investigate the SeaStar application framework. You wouldn't build a web service with SeaStar, rather you would build the infrastructure that you would use to build the web service on top of. https://github.com/scylladb/seastar
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Why we built our streaming data platform in C++
C++ also allows us to control as much as possible from the platform. Through the efficiency of our own code, combined with the amazing Seastar framework and other best-in-class libraries, Redpanda speaks directly to the hardware. It only depends on the Linux kernel to launch the process, after which Redpanda is very deterministic in terms of performance, runtime characteristics, memory utilization, and CPU speed. We own the entire end-to-end experience, which provides safety and allows Redpanda to build impactful products.
- Do Not Let C++ Become A Victim Of Suggestive Terminology
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How to make an HTTP client from scratch
The Seastar framework offers a great HTTP server implementation, which is used by ScyllaDB and Redpanda. However, Seastar doesn’t have an HTTP client library that can be easily used with Seastar framework. So we made one.
µWebSockets
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I'm open-sourcing my game engine
They use (uWebSockets)[https://github.com/uNetworking/uWebSockets], which was written in C++, but has an interface to use in NodeJS. It's been really performant for me in my simple tests compared to other popular websocket libs that slow down fairly quickly.
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8 Best WebSocket Libraries For Node
µWebSockets, pronounced as "microWebSocket”, is a WebSocket library written in C++ and has Node.js bindings. Its design focuses on being efficient and scalable, making it ideal for applications that require high concurrency and low latency.
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What's the hot tech stack these days?
Websockets are also pretty valuable for updating the page in real time, there are servers in many languages. I'm a big fan of https://github.com/uNetworking/uWebSockets which is C++ but also has JS bindings to use with Node.js.
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I have done a full benchmark of a POST REST API on my computer: Node.js vs Fastify vs Express.js vs Deno vs Bun vs GO. Node.js is used WITH and WITHOUT clustering on 6-core I7 processor
Can you include uWebsockets? https://github.com/uNetworking/uWebSockets
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[Cpp] Quelle bibliothèque de serveur Web C++ faut-il utiliser de nos jours ?
μWebSockets Génial, rapide, peut transformer l’eau en vin. Nécessite C++17.
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Nuklear – A single-header ANSI C immediate mode cross-platform GUI library
Not exaclty -- it looks like it's pretty overkill for my needs
I'm looking for something more like websocketpp[0], or even just grpc without a requisite proxy. uWebsockets looks really promising, being header only, but in the fine print requires a runtime library. unfortunately, none of that ecosystem seems to use cmake, making integrating it that much more of a pain.
why use cpp for this, I'm sure some HNer will ask. the ray tracer itself is using cuda, that's why. I've also debated
- running it as a grpc server and having some proxy in a more web-accessible language
- creating python bindings and using python to make a websocket/http server for it
neither of those are out of the question, but they're not my first choices, because I'd like to keep the build & execution simple. introducing dependencies, especially other executables, is in conflict with that.
i don't need anything particularly scalable -- a threaded implementation, or one using select() would be fine, if not preferable.
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Socketify.py - Maybe the fastest web framework for Python and PyPy
We discover a really fast, small, and well maintained C++ Library called uNetworking/uWebSockets, but no C API available, so we create and adapt the full C API from uNetworking/uWebSockets and will integrate libuv powered fetch and file IO, this same C API is used by Bun
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uWebSockets
Cool little library, I'm using it, but author has an ego the size of Wolfram's. This is just one snippet, there are many if you rummage through the docs and issues:
> In the 1970s, programming was an elite's task. Today programming is done by uneducated "farmers" and as a result, the care for smart algorithms, memory usage, CPU-time usage and the like has dwindled in comparison. Just look at, how many web developers represent time - it is not uncommon for web developers to send an entire textual representation of time as 30-something actual letters inside a JSON document with an actual textual key.
https://github.com/uNetworking/uWebSockets/blob/master/misc/...
For those who didn’t know, uWebSockets is one of the reasons for Bun’s high performance in server benchmarks [1], not just JavaScriptCore.
[1] https://github.com/uNetworking/uWebSockets/discussions/1466#...
What are some alternatives?
Boost.Beast - HTTP and WebSocket built on Boost.Asio in C++11
libwebsockets - canonical libwebsockets.org networking library
WebSocket++ - C++ websocket client/server library
drogon - Drogon: A C++14/17 based HTTP web application framework running on Linux/macOS/Unix/Windows [Moved to: https://github.com/drogonframework/drogon]
Folly - An open-source C++ library developed and used at Facebook.
glommio - Glommio is a thread-per-core crate that makes writing highly parallel asynchronous applications in a thread-per-core architecture easier for rustaceans.
Mongoose - Embedded Web Server
rpc-websockets - JSON-RPC 2.0 implementation over WebSockets for Node.js and JavaScript/TypeScript
Boost.Asio - Asio C++ Library
POCO - The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.
C++ REST SDK - The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to and interact with services.
Boost - Super-project for modularized Boost