Recap Modern WebAssembly in CDS 2019 - Speaker Deck

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chrome://modern-webassembly

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WebAssembly?

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aka, WASM [਋ই્]

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https://blog.logrocket.com/webassembly-how-and-why-559b7f96cd71 WebAssembly? - ਢীࢲ ز੘ೞח ࢜۽਍ ঱য - ׮ܲ ঱য۽ ࠗఠ ஹ౵ੌ - ୭੸ച غҊ ੌҙࢿ ੓ח ࢿמ - ੗߄झ௼݀౟ܳ ؀୓ ೞ૑ ঋ਺

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WebAssembly

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https://blog.logrocket.com/webassembly-how-and-why-559b7f96cd71 WebAssembly? - ਢীࢲ ز੘ೞח ࢜۽਍ ঱য - ׮ܲ ঱য۽ ࠗఠ ஹ౵ੌ - ୭੸ച غҊ ੌҙࢿ ੓ח ࢿמ - ੗߄झ௼݀౟ܳ ؀୓ ೞ૑ ঋ਺

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wasm-pack build WAT .wasm

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WebAssembly Instructions Stack 0 0 (I32, i32) -> (i32) 1 (I64, i64) -> () 0 Type 0 1 Type 1 0 Code for Func 0 1 Code for Func 1 1 3 4 5 6 8 0 1 2 3 4 $type0 Memory Type Function Code $func0 i32.store  i32.load 2 7 ArrayBuffer i32.add  get_local $p1  get_local $p1 pop push

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Value Types i32, i64, f32, f64 Linear Memory Access ii32.load, i64.load, f32.load, f64.load, i64.store, f32.store, f64.store, and more Local, Global Variable get_local, set_local, tee_local, get_global, set_global Control constructs and instructions nop, block, loop, if, else, br, br_if, br_table, return, end Calls call, call_indirect Constants i32.const, i64.const, f32.const, f64.const, Operators i32.add, i32.sub, i32.mul, f32.add, f32.sub, f32.mul, f32.div, f32.abs, f64.add, f64.sub, and more

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://hacks.mozilla.org/2017/07/memory-in-webassembly-and-why-its-safer-than-you-think/

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https://blog.logrocket.com/webassembly-how-and-why-559b7f96cd71 WebAssembly? - ਢীࢲ ز੘ೞח ࢜۽਍ ঱য - ׮ܲ ঱য۽ ࠗఠ ஹ౵ੌ - ୭੸ച غҊ ੌҙࢿ ੓ח ࢿמ - ੗߄झ௼݀౟ܳ ؀୓ ೞ૑ ঋ਺

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https://www.youtube.com/watch?v=njt-Qzw0mVY

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https://www.youtube.com/watch?v=njt-Qzw0mVY

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Javascript  Source Code Ignition  (JS Interpreter) TurboFan  (Optimization Compiler) Deoptimize Optimize  (Proﬁle Data) Bytecode Optimized  Code Collecting  Information Proﬁling Data Javascript Pipeline

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Liftoff  (WebAssembly baseline compiler) Hot Swap Execution  Immediately WASM TurboFan  (Optimization Compiler) Off-thread  Optimization WebAssembly Pipeline

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https://developers.google.com/web/updates/2019/02/hotpath-with-wasm

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https://developers.google.com/web/updates/2019/02/hotpath-with-wasm

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WebAssembly? - ਢীࢲ ز੘ೞח ࢜۽਍ ঱য - ׮ܲ ঱য۽ ࠗఠ ஹ౵ੌ - ୭੸ച غҊ ੌҙࢿ ੓ח ࢿמ - ੗߄झ௼݀౟ܳ ؀୓ ೞ૑ ঋ਺

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WebAssembly Javascript

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WebAssembly ??

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https://github.com/ragingwind/wasm-hnpwa

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Demo

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WebAssembly

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Implicit Caching Liftoff  (WebAssembly baseline compiler) Hot Swap Execution  Immediately WASM TurboFan  (Optimization Compiler) Off-thread  Optimization https://www.youtube.com/watch?v=kZrl91SPSpc

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Implicit Caching Liftoff  (WebAssembly baseline compiler) Hot Swap Execution  Immediately WASM TurboFan  (Optimization Compiler) Off-thread  Optimization HTTP Cache Loads Optimized Module https://www.youtube.com/watch?v=kZrl91SPSpc New Session

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Implicit Caching

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Implicit Caching WebAssembly HTTP Cache Keep your URLs stable

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https://www.youtube.com/watch?v=kZrl91SPSpc Startup Time

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SharedArrayBuffer Threads Worker  CPU Core WASM Instance Worker  CPU Core WASM Instance Worker  CPU Core WASM Instance https://www.youtube.com/watch?v=kZrl91SPSpc atomic.wait atomic.notify

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Threads in C https://github.com/ragingwind/wasm-hello-world/tree/master/clang-thread

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Threads in Rust https://github.com/ragingwind/wasm-hello-world/tree/master/rust-thread worker.js lib.rs

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Threads in Rust https://github.com/ragingwind/wasm-hello-world/tree/master/rust-thread

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https://medium.com/google-earth/performance-of-web-assembly-a-thread-on-threading-54f62fd50cf7 Threads

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https://www.youtube.com/watch?v=kZrl91SPSpc Threads

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Threads https://www.youtube.com/watch?v=kZrl91SPSpc

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✅ ❌ Threads

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SIMD Single Instruction, Multiple Data

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https://github.com/google/mediapipe/blob/master/mediapipe/docs/web.md Chrome Canary with #enable-webassembly-simd

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https://www.youtube.com/watch?v=kZrl91SPSpc

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https://www.youtube.com/watch?v=kZrl91SPSpc

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https://www.youtube.com/watch?v=kZrl91SPSpc

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https://www.youtube.com/watch?v=kZrl91SPSpc

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https://www.youtube.com/watch?v=kZrl91SPSpc

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Tooling Updates - Native LLVM + WASM (clang +Binaryen) - Asyncify, Using asynchronous APIs - Debugging, WAT format, Source map, Native debugging

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Native LLVM Backend https://www.youtube.com/watch?v=kZrl91SPSpc

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Native LLVM Backend https://www.youtube.com/watch?v=kZrl91SPSpc

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https://dassur.ma/things/c-to-webassembly/

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Native LLVM Backend https://v8.dev/blog/emscripten-llvm-wasm

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Native LLVM Backend https://v8.dev/blog/emscripten-llvm-wasm

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Tooling Updates - Native LLVM + WASM (clang +Binaryen) - Asyncify, Using asynchronous APIs - Debugging, WAT format, Source map, Native debugging

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Asyncify https://www.youtube.com/watch?v=kZrl91SPSpc

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Asyncify https://www.youtube.com/watch?v=kZrl91SPSpc

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$ emcc example.c -O3 -o a.html -s ASYNCIFY -s 'ASYNCIFY_IMPORTS=["do_fetch"]' Asyncify

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Tooling Updates - Native LLVM + WASM (clang +Binaryen) - Asyncify, Using asynchronous APIs - Debugging, WAT format, Source map, Native debugging

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WAT Debugging

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Sourcemap, Native Debugging $ rustc -g --target wasm32-unknown-unknown -O ./src/lib.rs -o ./pkg/square.wasm

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WebAssembly

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https://hacks.mozilla.org/2019/11/announcing-the-bytecode-alliance/

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https://github.com/WebAssembly/interface-types/blob/master/proposals/interface-types/Explainer.md Interface Types

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https://hacks.mozilla.org/2019/08/webassembly-interface-types/

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WebAssembly