2nd/10_Wiki/Topics/DevOps_and_Security/SharedArrayBuffer vs postMessage 성능 차이.md

id, title, category, status, canonical_id, duplicate_of, aliases, source_trust_level, confidence_score, verification_status, tags, last_reinforced, github_commit

id	title	category	status	canonical_id	duplicate_of	aliases	source_trust_level	confidence_score	verification_status	tags	last_reinforced	github_commit
wiki-2026-0508-sharedarraybuffer-vs-postmessage	SharedArrayBuffer vs postMessage 성능 차이	10_Wiki/Topics	duplicate	sharedarraybuffer	SharedArrayBuffer		A	0.9	redirected	duplicate web-workers performance	2026-05-10	pending

SharedArrayBuffer vs postMessage 성능 차이

이 문서는 SharedArrayBuffer 의 중복본입니다. Canonical 문서로 redirect.

핵심 요약 (specialization aspects)

• postMessage: structured clone — 매 large payload 의 매 copy cost (O(n)) + serialize.
• Transferable (ArrayBuffer): zero-copy ownership transfer — 매 sender 가 매 lose access.
• SharedArrayBuffer: 매 true shared memory — 매 Atomics 로 매 sync, 매 zero copy, 매 < 1µs latency.
• 매 1MB payload 기준: postMessage ~5-15ms, SAB read ~0ms (memory-mapped).

🔗 Graph

• 부모: SharedArrayBuffer (canonical)

🕓 변경 이력

날짜	변경
2026-05-08	Phase 1
2026-05-10	중복 처리 — canonical 문서로 redirect