refactor(topics): 멀티 에이전트용 지식 재편 — _Common(공통 기본기) + Domain_* 구조
에이전트 8종(대화형/프로그래머 C·S/디자이너/설계자/기획자/QA/PD/PM)에게 [공통 기본 능력 + 롤별 Specialty] 2층으로 지식을 주입하기 위한 재분류. 문서 내용·포맷은 무수정, 폴더 이동만 (6,372개 문서 수 보존 확인). - Topic_Programming → Domain_Programming (내부 구조 보존) - Topic_Graphic → Domain_Design - Topic_Business → Domain_Product - Topic_General → Domain_General - _Common 신설: Math(구 Topic_Math_Specialty), Reasoning(구 General/From_Thinking & Reasoning), Reasoning_Creativity(구 General/From_창의성), Communication(Poetic_Blog_Writing + From_writing) - 타 도메인의 From_* 폴더는 유지 (출처 표기일 뿐, 이미 도메인에 맞게 분류된 문서) - 빈 폴더 정리 (memory/procedures) - 에이전트→폴더 매핑은 workspace의 .astra/agent-knowledge-map.json (9개 에이전트) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Antigravity Agent
@@ -0,0 +1,196 @@
|
||||
---
|
||||
id: wiki-2026-0508-webassembly
|
||||
title: WebAssembly
|
||||
category: 10_Wiki/Topics
|
||||
status: verified
|
||||
canonical_id: self
|
||||
aliases: [WASM, Wasm, WebAssembly]
|
||||
duplicate_of: none
|
||||
source_trust_level: A
|
||||
confidence_score: 0.9
|
||||
verification_status: applied
|
||||
tags: [webassembly, wasm, performance, compile-target]
|
||||
raw_sources: []
|
||||
last_reinforced: 2026-05-10
|
||||
github_commit: pending
|
||||
tech_stack:
|
||||
language: WASM/Rust/C++
|
||||
framework: Web Platform / Wasmtime / WASI
|
||||
---
|
||||
|
||||
# WebAssembly
|
||||
|
||||
## 매 한 줄
|
||||
> **"매 portable binary — near-native speed 의 web"**. WASM 매 stack-based VM 의 bytecode — 모든 browser + Node + Wasmtime 의 실행. 2026 modern state 매 Component Model + WASI Preview 2 + GC + threads + SIMD — 매 server / edge / plugin 의 polyglot runtime.
|
||||
|
||||
## 매 핵심
|
||||
|
||||
### 매 binary format
|
||||
- **Module**: types / functions / memory / tables / imports / exports.
|
||||
- **Linear memory**: single contiguous ArrayBuffer — `i32`/`i64`/`f32`/`f64` + `v128` (SIMD).
|
||||
- **Stack machine**: structured control flow — `block`/`loop`/`if` + `br`/`br_if`.
|
||||
- **Validation**: load-time type-check — 매 sandboxed by design.
|
||||
|
||||
### 매 toolchain (2026)
|
||||
- **Rust**: `wasm-bindgen` + `wasm-pack` — 매 web ecosystem 의 dominant.
|
||||
- **C/C++**: Emscripten / `clang --target=wasm32-wasi`.
|
||||
- **AssemblyScript**: TypeScript-like → WASM.
|
||||
- **Go**: TinyGo (small binary) / stdlib (large).
|
||||
- **Zig / .NET / Kotlin / Swift**: 매 first-class targets.
|
||||
|
||||
### 매 응용
|
||||
1. **CPU-heavy web**: video codec / image processing / crypto / physics.
|
||||
2. **Edge compute**: Cloudflare Workers / Fastly Compute@Edge — 매 cold-start <1ms.
|
||||
3. **Plugin systems**: Figma / Shopify Functions / Envoy filters — 매 sandbox.
|
||||
4. **Server runtime**: Wasmtime / Wasmer — 매 polyglot microservices.
|
||||
|
||||
## 💻 패턴
|
||||
|
||||
### Rust → WASM 매 wasm-bindgen
|
||||
```rust
|
||||
// lib.rs
|
||||
use wasm_bindgen::prelude::*;
|
||||
|
||||
#[wasm_bindgen]
|
||||
pub fn fib(n: u32) -> u64 {
|
||||
let (mut a, mut b) = (0u64, 1u64);
|
||||
for _ in 0..n { let c = a + b; a = b; b = c; }
|
||||
a
|
||||
}
|
||||
|
||||
#[wasm_bindgen]
|
||||
pub struct Engine { state: Vec<f32> }
|
||||
|
||||
#[wasm_bindgen]
|
||||
impl Engine {
|
||||
#[wasm_bindgen(constructor)]
|
||||
pub fn new() -> Self { Self { state: vec![0.0; 1024] } }
|
||||
pub fn step(&mut self, dt: f32) { for x in &mut self.state { *x += dt; } }
|
||||
}
|
||||
```
|
||||
|
||||
```bash
|
||||
wasm-pack build --target web
|
||||
```
|
||||
|
||||
```js
|
||||
// JS side
|
||||
import init, { fib, Engine } from './pkg/mylib.js';
|
||||
await init();
|
||||
console.log(fib(50));
|
||||
const e = new Engine();
|
||||
e.step(0.016);
|
||||
```
|
||||
|
||||
### Streaming instantiate
|
||||
```js
|
||||
const { instance } = await WebAssembly.instantiateStreaming(
|
||||
fetch('/module.wasm'),
|
||||
{ env: { log: (x) => console.log(x) } }
|
||||
);
|
||||
instance.exports.run();
|
||||
```
|
||||
|
||||
### Linear memory 매 zero-copy
|
||||
```js
|
||||
const memory = new WebAssembly.Memory({ initial: 256, maximum: 1024 }); // 16MB → 64MB
|
||||
const { instance } = await WebAssembly.instantiate(bytes, { env: { memory } });
|
||||
const view = new Uint8Array(memory.buffer, instance.exports.bufPtr(), 1024);
|
||||
view.set(imageData); // 매 JS → WASM zero-copy
|
||||
instance.exports.process();
|
||||
```
|
||||
|
||||
### SIMD 매 v128
|
||||
```rust
|
||||
use std::arch::wasm32::*;
|
||||
#[target_feature(enable = "simd128")]
|
||||
pub unsafe fn add_v(a: &[f32], b: &[f32], out: &mut [f32]) {
|
||||
for i in (0..a.len()).step_by(4) {
|
||||
let va = v128_load(a.as_ptr().add(i) as *const v128);
|
||||
let vb = v128_load(b.as_ptr().add(i) as *const v128);
|
||||
v128_store(out.as_mut_ptr().add(i) as *mut v128, f32x4_add(va, vb));
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### Threads 매 SharedArrayBuffer
|
||||
```bash
|
||||
# Build with rayon support
|
||||
RUSTFLAGS='-C target-feature=+atomics,+bulk-memory' \
|
||||
wasm-pack build --target web -- --features parallel
|
||||
```
|
||||
|
||||
```js
|
||||
// 매 COOP+COEP header 필수
|
||||
// HTTP: Cross-Origin-Opener-Policy: same-origin
|
||||
// Cross-Origin-Embedder-Policy: require-corp
|
||||
import init, { initThreadPool, parallel_sum } from './pkg/mylib.js';
|
||||
await init();
|
||||
await initThreadPool(navigator.hardwareConcurrency);
|
||||
parallel_sum(bigArray);
|
||||
```
|
||||
|
||||
### Component Model + WASI
|
||||
```bash
|
||||
# 매 portable component — host 매 Wasmtime / browser
|
||||
cargo component build --release
|
||||
wasmtime serve mycomponent.wasm
|
||||
```
|
||||
|
||||
```wit
|
||||
// world.wit — 매 interface contract
|
||||
package my:demo;
|
||||
world api {
|
||||
export greet: func(name: string) -> string;
|
||||
import logger: interface { log: func(msg: string); }
|
||||
}
|
||||
```
|
||||
|
||||
### Edge: Cloudflare Workers
|
||||
```js
|
||||
// wrangler.toml: [build] command = "wasm-pack build --target web"
|
||||
import wasm from './pkg/mylib_bg.wasm';
|
||||
import { greet } from './pkg/mylib.js';
|
||||
export default {
|
||||
async fetch(req) {
|
||||
await initWasm(wasm);
|
||||
return new Response(greet('edge'));
|
||||
}
|
||||
};
|
||||
```
|
||||
|
||||
## 매 결정 기준
|
||||
| 상황 | WASM vs JS |
|
||||
|---|---|
|
||||
| Tight numeric loop | WASM 2-5x faster |
|
||||
| DOM manipulation | JS — WASM 매 boundary cost |
|
||||
| Large library port (FFmpeg, OpenCV) | WASM |
|
||||
| <1KB hot path | JS — load + boundary overhead |
|
||||
| Plugin sandbox | WASM 매 isolation |
|
||||
| Edge cold-start | WASM — <1ms vs JS 5-50ms |
|
||||
|
||||
**기본값**: hot CPU path 의 Rust+wasm-bindgen / 일반 web logic 의 JS.
|
||||
|
||||
## 🔗 Graph
|
||||
- 응용: [[Cloudflare Workers]]
|
||||
- Adjacent: [[Web Worker (웹 워커)]]
|
||||
|
||||
## 🤖 LLM 활용
|
||||
**언제**: CPU-bound hot path / portable plugin sandbox / edge runtime / large native library port.
|
||||
**언제 X**: simple business logic — JS 매 충분 / DOM-heavy work / small one-off scripts.
|
||||
|
||||
## ❌ 안티패턴
|
||||
- **JS↔WASM crossing in loop**: boundary cost ~50-200ns — batch across boundary.
|
||||
- **No streaming compile**: `instantiate(bytes)` 의 main-thread block — `instantiateStreaming` 사용.
|
||||
- **Memory growth thrash**: pre-size `WebAssembly.Memory.maximum`.
|
||||
- **String marshalling**: UTF-8 copy 매 expensive — pass pointer+len, decode batch.
|
||||
|
||||
## 🧪 검증 / 중복
|
||||
- Verified (WebAssembly Specification 2.0 / WASI Preview 2 / W3C WebAssembly WG).
|
||||
- 신뢰도 A.
|
||||
|
||||
## 🕓 Changelog
|
||||
| 날짜 | 변경 |
|
||||
|---|---|
|
||||
| 2026-05-08 | Phase 1 |
|
||||
| 2026-05-10 | Manual cleanup — toolchain, SIMD, threads, Component Model, edge patterns |
|
||||
Reference in New Issue
Block a user