smartstring
zig
smartstring | zig | |
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7 | 816 | |
482 | 30,773 | |
- | 3.2% | |
0.0 | 10.0 | |
8 months ago | 3 days ago | |
Rust | Zig | |
Mozilla Public License 2.0 | MIT License |
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smartstring
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Does using "String" instead of "&str" a lot results in unoptimised code?
Your use case sounds like it will involve a lot of small strings that use a subset of UTF-8. If you’re concerned about performance, you could look into something like smartstring. Sixbit also looks interesting, but it looks like it won’t give you any more characters and it’d probably require additional computation to do the conversion (and they’d have to be converted back out).
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Rust Is Hard, Or: The Misery of Mainstream Programming
> If you have a long-running async function, then pass parameters by value! If you have a polymorphic async function, then return your result in a Box.
I've taken to making heavy use of the smallvec and smartstring crates for this. Most lists and strings are small in practice. Using smallvec / smartstring lets you keep most clone() calls allocation-free. This in turn lets you use owned objects, which are easier to reason about - for you and the borrow checker. And you keep a lot of the performance of just passing around references.
I tried to use async rust a couple of years ago, and fell on my face in the process. Most of my rust at the moment is designed to compile to wasm - and then I'm leaning on nodejs for networking and IO. Writing async networked code is oh so much easier to reason about in javascript. When GAT, TAIT and some other language features to fix async land I'll muster up the courage to make another attempt. But rust's progress at fixing these problems feels painfully slow.
https://crates.io/crates/smallvec / https://crates.io/crates/smartstring
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GitHub - epage/string-benchmarks-rs: Comparison of Rust string types
Just to point out, smartstring no longer assumes String memory layout. From the changelog:
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Why is str not just [char]?
There's some really good crates that implement SSO floating around - eg, SmartString. But I agree - its a pity they're needed. Swift built this into the core string type in the language. I think that was the right call.
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Announcing `compact_str`! A super memory efficient immutable string that is transparently stored on the stack, when possible
Comparatively: * SmolStr can inline up to 22 bytes but does not adjust down for 32-bit architectures, meaning it's potentially wasting memory on 32-bit archs. Similarly though it's immutable and Clone is O(1) * SmartString can inline up to 23 bytes, but it's mutable and Clone is O(n). Also this crate makes assumptions about the memory layout of a String, which in theory should be fine, but is a slight caveat.
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Version 0.19.15 released.
SmartString is used to store identifiers (which tends to be short, fewer than 23 characters, and ASCII-based) because they can usually be stored inline. Map keys now also use SmartString.
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Speed of Rust vs. C
I’ve been using smartstrings, which is both excellent and maintained. https://github.com/bodil/smartstring
zig
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Memory-mapped IO registers in Zig. (2021)
There is an issue proposing this approach: https://github.com/ziglang/zig/issues/4284
- Zig Programming Language
- Zig Language 0.12 Release
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Zig 0.12.0 Release Notes
https://github.com/ziglang/zig/issues/224
e.g.:
> > When debugging/prototyping, it's useful to comment out a line without having to refactor, e.g.
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How to Write a PHP Extension with Zig?
When writing code in a scripting language, sometimes you need that extra bit of performance (or maybe an async feature from Zig).
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Bun - The One Tool for All Your JavaScript/Typescript Project's Needs?
NodeJS is by no means a slow runtime, it wouldn’t be so popular if it was. But compared to Bun, it’s slow. Bun was built from the ground up with speed in mind, using both JavascriptCore and Zig. The Bun team spent an enormous amount of time and energy trying to make Bun fast, including lots of profiling, benchmarking, and optimizations.
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Bun 1.1
ntdll.dll!RtlUserThreadStart()
There are valid reasons to use APIs from NTDLL. Where I disagree with zig#1840 is the idea that it is always better to use NTDLL versions of API. Every other software ecosystem uses the standard Win32 APIs and diverging from that without a good reason seems like a good way to have unexpected behavior. One concrete example is most users and programmers expect Windows to redirect some file system paths when running on WOW64. But this is implemented in Kernel32, not ntdll.
https://github.com/ziglang/zig/issues/11894
- Zig, Rust, and Other Languages
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Nanos – A Unikernel
Zig also has an IRC channel on libera (#zig) that is moderated by Andrew Kelley.[1]
[1] https://github.com/ziglang/zig/wiki/Community
- Ask HN: What Underrated Open Source Project Deserves More Recognition?
What are some alternatives?
smol_str
Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).
compact_str - A memory efficient string type that can store up to 24* bytes on the stack
Odin - Odin Programming Language
min-sized-rust - 🦀 How to minimize Rust binary size 📦
v - Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io
libskry_r - Lucky imaging library
rust - Empowering everyone to build reliable and efficient software.
bitter - Extract bits from a byte slice
go - The Go programming language
redgrep - ♥ Janusz Brzozowski
ssr-proxy-js - A Server-Side Rendering Proxy focused on customization and flexibility!