webhoster
js-compute-runtime
webhoster | js-compute-runtime | |
---|---|---|
3 | 8 | |
6 | 186 | |
- | 3.2% | |
6.3 | 9.3 | |
9 months ago | 3 days ago | |
JavaScript | C++ | |
MIT License | Apache License 2.0 |
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webhoster
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What is something that you don't understand, but at this point are too embarrassed to ask?
It's way simpler than it sounds. This is a < 100 line implementation, server-side.
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Express.js vs Koa.js vs Fastify - Performance Benchmark
I had written my own in-house framework to fully support HTTP2 and performance is slightly better than Koa.
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[AskJS] Has anybody implemented and compiled ServiceWorker specification to a standalone executable?
I have an extremely similar setup, but not 100% to spec because I wrote a HTTP server in node and it has some expectations of being used for HTTP requests. But most of Response is built into the API, with expectation that you would interface with an HTTP request in the same fashion as a service worker. The public version is out of date, but the internal version I have used has the stream consumers. I use it for HTTP2 Push setup.
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)
What are some alternatives?
nodebox-runtime - Nodebox is a runtime for executing Node.js modules in the browser.
wasmtime - A fast and secure runtime for WebAssembly
readable-stream - Node-core streams for userland
quickjs-rs - Rust wrapper for the quickjs Javascript engine.
workerd - The JavaScript / Wasm runtime that powers Cloudflare Workers
spidermonkey-wasi-embedding
miniflare - 🔥 Fully-local simulator for Cloudflare Workers. For the latest version, see https://github.com/cloudflare/workers-sdk/tree/main/packages/miniflare.
now - Node on Web
landlord - Provides the ability to run multiple JVM based applications on the one JVM
javy - JS to WebAssembly toolchain
spidermonkey-wasi-embedding