js-compute-runtime
wazero
js-compute-runtime | wazero | |
---|---|---|
8 | 52 | |
186 | 4,564 | |
3.2% | 1.9% | |
9.3 | 9.8 | |
6 days ago | 7 days ago | |
C++ | Go | |
Apache License 2.0 | Apache License 2.0 |
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js-compute-runtime
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What sorts of things would you consider to be “advanced” javascript concepts?
There are multiple JavaScript runtimes. SpiderMonkey is one example that has nothing to do with Node.js, see (js-compute-runtime)[https://github.com/fastly/js-compute-runtime].
- [AskJS] Has anybody implemented and compiled ServiceWorker specification to a standalone executable?
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JavaScript support hits 1.0 milestone on Compute@Edge
We listened to the community feedback, filled in feature gaps, and addressed many bugs in the SDK. Not only that, we’ve also overhauled the SDK reference docs making it easier for you to know what’s supported and how to implement the features. All the Fastly specific features of the JS SDK now have interactive example applications in the documentation.
- Workerd: The Open Source Cloudflare Workers Runtime
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Wasmtime 1.0
These are good questions! Here's some answers from the corner of the world I know best as a Wasmtime contributor at Fastly:
1. Spidermonkey.wasm is the basis of Fastly's JavaScript on Compute@Edge support. We have found it to be faster than QuickJS. The source code is here: https://github.com/fastly/js-compute-runtime.
2. Fastly Compute@Edge is built on wasmtime. You can develop web services for it in Rust, JS, and Go: https://developer.fastly.com/learning/compute/
3. Fastly's multi-tenant platform is closed source, but our single-tenant local development platform, which also uses wasmtime under the hood as well, is open source: https://github.com/fastly/viceroy. It isn't a big leap to make viceroy multi-tenant: Wasmtime provides everything you need, and all Viceroy would have to do is dispatch on e.g. HTTP host header to the correct tenant. Our multi-tenant platform is closed source because it is very specialized for use on Fastly's edge, not because the multi-tenant aspect is special.
- Fastly Compute Edge JavaScript Runtime
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Debunking Cloudflare’s recent performance tests
btw. for what it's worth their javascript to wasm is opensource:
- https://github.com/fastly/js-compute-runtime
- https://github.com/tschneidereit/spidermonkey-wasi-embedding
and besides that it is slower than nodejs it is still plenty fast (no matter that it is not as fast as they want) btw. it's startup is faster than node. (maybe better pgo might help)
wazero
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Wazero: The zero dependency WebAssembly runtime
https://github.com/tetratelabs/wazero/releases/tag/v1.7.0
This includes the final release of the new optimizing compiler, which is a big improvement over the previous one.
The new version also adds experimental support for threads and snapshot/restore (setjmp/longjmp).
This is already being used by go-pgquery, all will mean that sqlc won't need to ship to almost copies of wazero (these features had been implemented on a friendly fork, and have now been up-streamed).
- Wazero v1.6.0
- Show HN: My Go SQLite driver did poorly on a benchmark, so I fixed it
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Making Games in Go for Absolute Beginners
> Go actually has one of the best WASM runtimes https://github.com/tetratelabs/wazero
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WASM by Example
Wazero looks super cool. I saw somewhere that programs can be run with a timeout, which sounds great for sandboxing. The program input is just a slice of bytes [1], so an interesting use case would be to use something like Nats [2] to distribute programs to different servers. Super simple distributed computing!
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1: https://github.com/tetratelabs/wazero/blob/main/examples/bas...
2: https://natsbyexample.com/examples/messaging/pub-sub/go
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Show HN: Sqinn-Go is a Golang library for accessing SQLite databases in pure Go
It is slower.
The WASM runtime wazero [1] uses a compiler on amd64 and arm64 (on Linux, macOS, Windows, and FreeBSD), but the current compiler is very fast (at compiling), but very naive (generates less than optimal code).
An optimizing compiler is currently being developed, and should be released in the coming months. I'm optimistic that this compiler will cover the performance gap between WASM and modernc.
[1]: https://wazero.io
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Jacobin: Minimal JVM written in Go and capable of running Java 17 classes
I am a fan of the Jacobin project! For your uses, you may also want to consider wazero [1], a pure-go WebAssembly runtime. Full disclosure: I am on the team :)
[1]: https://wazero.io/
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Val, a high-level systems programming language
No longer does Wasm/WASI need JS host! There are many spec-compliant runtimes built for environments from tiny embedded systems up to beefy arm/x86 racks:
- https://github.com/bytecodealliance/wasm-micro-runtime
- https://github.com/bytecodealliance/wasmtime
- https://github.com/wasmerio/wasmer
- https://github.com/tetratelabs/wazero
- https://github.com/extism/extism (disclaimer, my company's project - makes wasm easily embeddable into 16+ programming languages!)
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WebAssembly and Replayable Functions
full disclosure: I don't work on it, but the devs are committers/contributors to https://wazero.io (I am a wazero committer) :)
- Wazero: Zero dependency WebAssembly runtime written in Go
What are some alternatives?
wasmtime - A fast and secure runtime for WebAssembly
wasmer - 🚀 The leading Wasm Runtime supporting WASIX, WASI and Emscripten
quickjs-rs - Rust wrapper for the quickjs Javascript engine.
workerd - The JavaScript / Wasm runtime that powers Cloudflare Workers
wasmer-go - 🐹🕸️ WebAssembly runtime for Go
spidermonkey-wasi-embedding
grule-rule-engine - Rule engine implementation in Golang
miniflare - 🔥 Fully-local simulator for Cloudflare Workers. For the latest version, see https://github.com/cloudflare/workers-sdk/tree/main/packages/miniflare.
yaegi - Yaegi is Another Elegant Go Interpreter
now - Node on Web
gc - Branch of the spec repo scoped to discussion of GC integration in WebAssembly