Antigravity Agent
35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
---
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id: wiki-2026-0508-sharedarraybuffer-vs-postmessage
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title: SharedArrayBuffer vs postMessage 성능 차이
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category: 10_Wiki/Topics
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status: duplicate
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canonical_id: sharedarraybuffer
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duplicate_of: "[[SharedArrayBuffer]]"
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aliases: []
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source_trust_level: A
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confidence_score: 0.9
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verification_status: redirected
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tags: [duplicate, web-workers, performance]
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last_reinforced: 2026-05-10
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github_commit: pending
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---
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# SharedArrayBuffer vs postMessage 성능 차이
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> **이 문서는 [[SharedArrayBuffer]] 의 중복본입니다.** Canonical 문서로 redirect.
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## 핵심 요약 (specialization aspects)
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- postMessage: structured clone — 매 large payload 의 매 copy cost (O(n)) + serialize.
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- Transferable (ArrayBuffer): zero-copy ownership transfer — 매 sender 가 매 lose access.
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- SharedArrayBuffer: 매 true shared memory — 매 Atomics 로 매 sync, 매 zero copy, 매 < 1µs latency.
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- 매 1MB payload 기준: postMessage ~5-15ms, SAB read ~0ms (memory-mapped).
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## 🔗 Graph
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- 부모: [[SharedArrayBuffer]] (canonical)
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## 🕓 변경 이력
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| 날짜 | 변경 |
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|---|---|
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| 2026-05-08 | Phase 1 |
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| 2026-05-10 | 중복 처리 — canonical 문서로 redirect |
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