librseq
tokio
librseq | tokio | |
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2 | 196 | |
63 | 24,677 | |
- | 1.5% | |
9.5 | 9.5 | |
20 days ago | 7 days ago | |
C | Rust | |
GNU General Public License v3.0 or later | 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.
librseq
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Cache invalidation really is one of the hardest problems in computer science
For Linux userspace rseq, see the standalone library and the GLIBC integration. Note that there's the major downside of a fallback being mandatory, and also the downside of the compiler being ignorant, unlike kernel or segment/TLS cpu-locals.
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As part of the stdlib mutex overhaul, std::sync::Mutex on Linux now has competitive performance with parking_lot
The epoch GC library I've used before was a Google-internal C++ one. It noticeably improved my software's tail latency over rwlocks. The unique thing about it is that it was basically zero-cost over a plain non-atomic pointer. It used Linux restartable sequences (aka rseq) to take advantage of synchronization operations Linux does on each context switch, rather than adding new atomics. I'm not aware of any open source synchronization libraries that do the same thing, but there's nothing stopping someone from writing one. rseq kernel support has been in mainline since Linux 4.18.
tokio
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On Implementation of Distributed Protocols
Being able to control nondeterminism is particularly useful for testing and debugging. This allows creating reproducible test environments, as well as discrete-event simulation for faster-than-real-time simulation of time delays. For example, Cardano uses a simulation environment for the IO monad that closely follows core Haskell packages; Sui has a simulator based on madsim that provides an API-compatible replacement for the Tokio runtime and intercepts various POSIX API calls in order to enforce determinism. Both allow running the same code in production as in the simulator for testing.
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I pre-released my project "json-responder" written in Rust
tokio / hyper / toml / serde / serde_json / json5 / console
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Cryptoflow: Building a secure and scalable system with Axum and SvelteKit - Part 0
tokio - An asynchronous runtime for Rust
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Top 10 Rusty Repositories for you to start your Open Source Journey
3. Tokio
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API Gateway, Lambda, DynamoDB and Rust
The AWS SDK makes use of the async capabilities in the Tokio library. So when you see async in front of a fn that function is capable of executing asynchronously.
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The More You Gno: Gno.land Monthly Updates - 6
Petar is also looking at implementing concurrency the way it is in Go to have a fully functional virtual machine as it is in the spec. This would likely attract more external contributors to developing the VM. One advantage of Rust is that, with the concurrency model, there is already an extensive library called Tokio which he can use. Petar stresses that this isn’t easy, but he believes it’s achievable, at least as a research topic around determinism and concurrency.
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Consuming an SQS Event with Lambda and Rust
Another thing to point out is that async is a thing in Rust. I'm not going to begin to dive into this paradigm in this article, but know it's handled by the awesome Tokio framework.
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netcrab: a networking tool
So I started by using Tokio, a popular async runtime. The docs and samples helped me get a simple outbound TCP connection working. The Rust async book also had a lot of good explanations, both practical and digging into the details of what a runtime does.
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Thread-per-Core
Regarding the quote:
> The Original Sin of Rust async programming is making it multi-threaded by default. If premature optimization is the root of all evil, this is the mother of all premature optimizations, and it curses all your code with the unholy Send + 'static, or worse yet Send + Sync + 'static, which just kills all the joy of actually writing Rust.
Agree about the melodramatic tone. I also don't think removing the Send + Sync really makes that big a difference. It's the 'static that bothers me the most. I want scoped concurrency. Something like <https://github.com/tokio-rs/tokio/issues/2596>.
Another thing I really hate about Rust async right now is the poor instrumentation. I'm having a production problem at work right now in which some tasks just get stuck. I wish I could do the equivalent of `gdb; thread apply all bt`. Looking forward to <https://github.com/tokio-rs/tokio/issues/5638> landing at least. It exists right now but is experimental and in my experience sometimes panics. I'm actually writing a PR today to at least use the experimental version on SIGTERM to see what's going on, on the theory that if it crashes oh well, we're shutting down anyway.
Neither of these complaints would be addressed by taking away work stealing. In fact, I could keep doing down my list, and taking away work stealing wouldn't really help with much of anything.
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PHP-Tokio – Use any async Rust library from PHP
The PHP <-> Rust bindings are provided by https://github.com/Nicelocal/ext-php-rs/ (our fork of https://github.com/davidcole1340/ext-php-rs with a bunch of UX improvements :).
php-tokio's integrates the https://revolt.run event loop with the https://tokio.rs event loop; async functionality is provided by the two event loops, in combination with PHP fibers through revolt's suspension API (I could've directly used the PHP Fiber API to provide coroutine suspension, but it was a tad easier with revolt's suspension API (https://revolt.run/fibers), since it also handles the base case of suspension in the main fiber).
What are some alternatives?
flurry - A port of Java's ConcurrentHashMap to Rust
async-std - Async version of the Rust standard library
seize - Fast, efficient, and robust memory reclamation for Rust.
Rocket - A web framework for Rust.
high-scale-lib - A fork of Cliff Click's High Scale Library. Improved with bug fixes and a real build system.
hyper - An HTTP library for Rust
rust - Empowering everyone to build reliable and efficient software.
futures-rs - Zero-cost asynchronous programming in Rust
smol - A small and fast async runtime for Rust
rayon - Rayon: A data parallelism library for Rust
actix-web - Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust.
crossbeam - Tools for concurrent programming in Rust