tokio-uring
netty-incubator-transport-io_uring | tokio-uring | |
---|---|---|
4 | 28 | |
177 | 1,003 | |
0.0% | 2.1% | |
7.9 | 4.1 | |
12 days ago | 2 months ago | |
Java | Rust | |
Apache License 2.0 | MIT License |
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netty-incubator-transport-io_uring
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Use io_uring for network I/O
- For network I/O, Netty as an incubating transport that is promising [1].
- For disk I/O, JDK's Loom project [2] has mentioned its plan to rely on io_uring on Linux [3], but there's no ETA AFAIK.
[1] https://github.com/netty/netty-incubator-transport-io_uring
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Zero-copy network transmission with io_uring
Yes, I think io_uring is slowly making its way onto Java ecosystem. Example: https://github.com/netty/netty-incubator-transport-io_uring
I guess it will go into the JVM too.
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Java Virtual Threads Preview
Maybe maybe not. If you want to take advantage of things like io_uring you're going to be doing that with a JNI lib. Such as this Netty incubator support for it https://github.com/netty/netty-incubator-transport-io_uring
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Advances In The ZIO 2.0 Scheduler
There is a Java library from Netty which has implemented io_uring and could be borrowed.
tokio-uring
- tokio_fs crate
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Use io_uring for network I/O
While Mio will probably not implement uring in its current design, there's https://github.com/tokio-rs/tokio-uring if you want to use io_uring in Rust.
It's still in development, but the Tokio team seems intent on getting good io_uring support at least!
As the README states, the Rust implementation requires a kernel newer than the one that shipped with Ubuntu 20.04 so I think it'll be a while before we'll see significant development among major libraries.
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Create a data structure for low latency memory management
That's what the pool is for: https://github.com/tokio-rs/tokio-uring/blob/master/src/buf/fixed/pool.rs
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Cloudflare Ditches Nginx for In-House, Rust-Written Pingora
Tokio supports io_uring (https://github.com/tokio-rs/tokio-uring), so perhaps when it's mature and battle-tested, it'd be easier to transition to it if Cloudflare aren't using it already.
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Anyone using io_uring?
- Tokio suffers from a similar problem
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redb 0.4.0: 2x faster commits with 1PC+C instead of 2PC
Eg via tokio-uring.
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Efficient way to read multiple files in parallel
I strongly recommend you to look into io-uring and use async executors that take advantages of it: - tokio-uring (not recommended as it is still undergoing development) - monoio - glommio
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Stacked Futures and why they are impossible
This is my thinking as well. Specifically, I realized that if you don’t use tasks, but rather futures and join, than structured concurrency just works out (at the cost of less efficient poll). In a single-threaded/thread-per-core runtime, tasks could have the same semantics as futures. Somewhat elaborated here: https://github.com/tokio-rs/tokio-uring/issues/81
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How to use async Rust for non-IO tasks?
There's a new API on Linux called io_uring that has performance benefits, but most executors don't use it yet, except executors meant specifically to harness the power of io_uring like tokio-uring and Glommio
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Side effects of Tokio
Breaking it down a bit further- Rust's async is zero-cost, and there's no way to write faster equivalent code to the language construct in Rust (and presumably other LLVM languages). Tokio introduces abstractions over OS APIs (indirectly) and provides a runtime. The runtime isn't zero cost, but it is likely to be better optimized for "standard" situations than a homebrewed solution, and its primary competition is in the form of other large async runtimes. On the other hand, Tokio's IO routines are (AFAIK) about as well written as one can get with blocking OS APIs, and the only competitors in that space are projects like tokio-uring that use APIs more well suited for asynchronous usage.
What are some alternatives?
cats-effect - The pure asynchronous runtime for Scala
libuv - Cross-platform asynchronous I/O
cats - Lightweight, modular, and extensible library for functional programming.
glommio - Glommio is a thread-per-core crate that makes writing highly parallel asynchronous applications in a thread-per-core architecture easier for rustaceans.
ZIO - ZIO — A type-safe, composable library for async and concurrent programming in Scala
liburing
eRPC - Efficient RPCs for datacenter networks
monoio - Rust async runtime based on io-uring.
tokio - A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...
diesel_async - Diesel async connection implementation