wee_alloc
min-sized-rust
wee_alloc | min-sized-rust | |
---|---|---|
7 | 101 | |
632 | 7,448 | |
0.0% | - | |
0.0 | 6.2 | |
about 1 year ago | about 2 months ago | |
Rust | Rust | |
Mozilla Public License 2.0 | MIT License |
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wee_alloc
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Rust + WASM + Typescript [+ React]
As a note, you might find some references to use wee_alloc, but it has been unmaintained for some time and shouldn't be used. I'm using the default allocator with the wasm32-wasi target and it works fine, but I don't know if that works with wasm32-unknown-unknown too; if not there's lol_alloc.
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Junior Dev here -- How are we setting up Rust, WASM, and webpack?
Note that the wasm-pack tutorial recommends using the wee_alloc crate. This crate is unmaintained and leaks memory, so it should be avoided. Remove this crate, the default allocator works just fine in WebAssembly.
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Don't use wee_alloc in production code targeting WebAssembly.
It leaks memory: https://github.com/rustwasm/wee_alloc/issues/106
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Need advice on a project involving Webassembly+ web_sys + webgl
Last thing that comes to mind is switching the allocator to wee_alloc. I use it most of the time for wasm projects and it doesn't make too much of a difference in binary size but that always depends on the project and usually saves at least a few kB.
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Developing a cross-platform game for browser, Ios, and Android using rust?
For example, check out wee_alloc.
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Rust on the front-end
wee_alloc, an allocator optimized for small code size.
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#![no_std] with WASI is more complicated than I thought it would be
Ok. Now I need to add in a global allocator. I use wee_alloc since I know it works pretty well with WASM: Cargo.toml
min-sized-rust
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The Linux Kernel Prepares for Rust 1.77 Upgrade
This is a good guide on building small Rust binaries: https://github.com/johnthagen/min-sized-rust
This talks about going to extreme lengths on making the smallest Rust binary possible, 400 bytes when it was written, https://darkcoding.net/software/a-very-small-rust-binary-ind...
The thing is, you lose a lot of nice features when you do this, like panic unwinding, debug symbols, stdlib… for kernel and some embedded development it’s definitely important, but for most use cases, does it matter?
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Rust wont save us, but its ideas will
Oh it was 137, haha. I will link you to this older comment of mine: https://news.ycombinator.com/item?id=29408906
See also https://github.com/johnthagen/min-sized-rust
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Making Rust binaries smaller by default
Are you sure? If so then this is awesome news, but I'm a bit confused; the commit in that min-sized-rust repo adding `build-std` to the README was merged in August 2021: https://github.com/johnthagen/min-sized-rust/pull/30
Are you saying that at that point the feature still hadn't "landed in Rust nightly" until recently? If so then what's the difference between a feature just being available in Rust nightly, vs having "landed"?
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Was Rust Worth It?
Rust binaries are by default nowhere close to 500MB. If they are not small enough for you, you can try https://github.com/johnthagen/min-sized-rust. By avoiding the formatting machinery and using `panic_immediate_abort` you can get about the size of C binaries.
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Compiling Rust binaries for Windows 98 SE and more: a journey
A useful reference: https://github.com/johnthagen/min-sized-rust
- How to minimize Rust binary size
- Error on flashing embedded code to stm32f103
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Tiny Binaries (2021)
That must be without stripping. Also there are ways to reduce binary size. See e.g. [min-sized-rust](https://github.com/johnthagen/min-sized-rust). I've gotten stripped binaries of small cli utils less than 400KiB without doing anything special, less than 150 KiB by customizing profile settings and compressing with upx, and less than 30 KiB by replacing the std with the libc as the link shows. Haven't tried with fltk though...
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Shared libraries
This is not quite what you're asking, but it does also address the underlying concern: https://github.com/johnthagen/min-sized-rust
What are some alternatives?
wasm-bindgen - Facilitating high-level interactions between Wasm modules and JavaScript
smartstring - Compact inlined strings for Rust.
wasi-libc - WASI libc implementation for WebAssembly
Cargo - The Rust package manager
cargo-wasi - A lightweight Cargo subcommand to build Rust code for the `wasm32-wasi` target
rustc_codegen_gcc - libgccjit AOT codegen for rustc
create-wasm-app - npm init template for consuming rustwasm pkgs
c2rust - Migrate C code to Rust
compiler-builtins - Porting `compiler-rt` intrinsics to Rust
regex - An implementation of regular expressions for Rust. This implementation uses finite automata and guarantees linear time matching on all inputs.
wasm-pack - 📦✨ your favorite rust -> wasm workflow tool!
embedded-graphics - A no_std graphics library for embedded applications