⚡ Bolt: [성능 개선] 검색어 입력 시 발생하는 다량의 GC 부하 및 불필요한 배열 메모리 할당 최적화#433
⚡ Bolt: [성능 개선] 검색어 입력 시 발생하는 다량의 GC 부하 및 불필요한 배열 메모리 할당 최적화#433seonghobae wants to merge 1 commit into
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- `App.tsx`의 노드 검색 필터링 중 빈번하게 호출되는 `.flatMap()`과 `.join(" ")` 체인을 `for` 루프와 `+=` 연산자를 활용한 명시적 문자열 연결로 대체.
- 사용자 입력(검색어 타이핑) 시 발생하는 짧은 생명주기의 배열 및 문자열 객체 생성 횟수를 극적으로 줄여 가비지 컬렉션(GC) 부하 감소 및 메인 스레드 블로킹 현상 방지.
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OpenCode Review Overview
Pull request overviewOpenCode reviewed the current-head bounded evidence and found no blocking issues. FindingsNo blocking findings. SummaryApproval sufficiency: bounded evidence supplied affirmative approval evidence for changed files, coverage/docstring posture, risk surfaces, and current-head verification; approval is not based merely on the absence of known blockers.
Changed-File Evidence Mapflowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file: bolt.md"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file: bolt.md"]
R1 --> V1["required checks"]
Evidence --> S2["Frontend: App.tsx"]
S2 --> I2["browser runtime and bundle"]
I2 --> R2["Review risk: Frontend: App.tsx"]
R2 --> V2["frontend tests"]
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Pull request overview
OpenCode reviewed the current-head bounded evidence and found no blocking issues.
Findings
No blocking findings.
Summary
Approval sufficiency: bounded evidence supplied affirmative approval evidence for changed files, coverage/docstring posture, risk surfaces, and current-head verification; approval is not based merely on the absence of known blockers.
Verification posture: CodeGraph evidence was initialized and bounded current-head evidence reviewed for changed-file evidence including .jules/bolt.md, frontend/src/App.tsx.
Linter/static: workflow/static review evidence is bounded by the current-head GitHub Checks gate and changed-file evidence.
TDD/regression: coverage execution evidence and focused changed hunks were reviewed from bounded-review-evidence.md.
Coverage: coverage execution evidence reports test coverage as not applicable because no supported changed source files or package manifests were found.
Docstring coverage: coverage execution evidence reports docstring coverage as not applicable because no supported changed source files or package manifests were found.
DAG: CodeGraph/source-backed behavior map connects .jules/bolt.md to the affected review, runtime, or workflow path and required checks.
PoC/execution: coverage-evidence job executed on the current head and reported PASS.
DDD/domain: workflow and repository-governance invariants were reviewed against changed files in bounded evidence.
CDD/context: CodeGraph evidence, changed-file history, and focused hunks were reviewed from bounded-review-evidence.md.
Similar issues: changed-file history evidence was reviewed for comparable local precedents.
Claim/concept check: bounded evidence, repository source, current-head workflow evidence, and, where numeric, scientific, statistical, or literature-backed claims are affected, original-paper/formula evidence and parameter-recovery expectations were used for claims.
Standards search: standards and external-source checks are delegated to configured OpenCode web_search/Context7/DeepWiki sources when applicable; no evidence-backed standards blocker is present in bounded evidence.
Compatibility/convention: changed workflow/script conventions, object naming, and reserved-word safety for schema/API/config/code surfaces were checked in bounded evidence.
Breaking-change/backcompat: deployment evidence and changed-file history were checked for backward-compatibility risk.
Performance: changed surfaces were checked for performance risk in bounded evidence.
Developer experience: changed automation, review, test, setup, and maintenance surfaces were checked for helpful or obstructive DX impact in bounded evidence.
User experience: connected user, operator, API, CLI, documentation, review-comment, status-check, rendering, and workflow-reader behavior was checked for contradictions against code, docs, and tests in bounded evidence.
Visual/DOM: Playwright visual, DOM locator, ARIA snapshot, console, and responsive evidence were checked when a web UI surface was present; for non-web surfaces, API/CLI/log/docs/workflow interaction evidence was reviewed instead.
Accessibility/i18n: accessibility, localization, and human-readable text surfaces were checked where UI, CLI, API message, docs, logs, or review text changed.
Supply-chain/license: dependency, package, model, container, and external-tool changes were checked in bounded evidence.
Packaging: package, build, test, lint, and security contracts were checked in bounded evidence.
Security/privacy: workflow-token, review-gate, and repository-automation security/privacy boundaries were checked in bounded evidence.
- Result: APPROVE
- Reason: Performance optimization for search string handling in App.tsx
- Head SHA:
45024d86b99e8ad365818e4f10d7649324d55c1d - Workflow run: 28708687848
- Workflow attempt: 1
Changed-File Evidence Map
flowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file: bolt.md"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file: bolt.md"]
R1 --> V1["required checks"]
Evidence --> S2["Frontend: App.tsx"]
S2 --> I2["browser runtime and bundle"]
I2 --> R2["Review risk: Frontend: App.tsx"]
R2 --> V2["frontend tests"]
2 participants
💡 What
React 상태 변화(사용자의 검색어 입력)마다 실행되는
App.tsx의searchMatchedNodeIds내부 로직에서 동적 크기를 가진 ERD 노드 및 컬럼 배열을 평탄화하고 문자열로 묶을 때 사용되던.flatMap()과.join()체인을 제거하고,for루프 내 명시적 문자열 덧셈 연산(+=)으로 교체했습니다. 빈 필드(null/undefined)에 대한 처리도 조건문으로 추가하여 불필요한 공백 생성을 막았습니다.🎯 Why
사용자가 검색어를 한 글자 입력할 때마다 수십~수백 개의 테이블과 수천 개의 컬럼 정보가 O(N)으로 순회되며 필터링 대상 문자열(
haystack)을 만듭니다. 기존 함수형 체인 방식(.flatMap().join())은 이 과정에서 각 노드와 컬럼마다 새로운 단기 배열과 중간 문자열들을 지속적으로 메모리에 할당하고 버리게 됩니다. 이러한 대량의 객체 생성과 폐기는 JavaScript의 가비지 컬렉터(GC)에 심각한 부하를 주어 프레임 드랍이나 메인 스레드 블로킹을 유발할 수 있습니다.📊 Impact
🔬 Measurement
pnpm test: 모든 기존 프론트엔드 유닛 테스트가 기능 변경 없이 정상 통과함을 확인했습니다. (기존.includes부분 문자열 매칭 기능 100% 유지)PR created automatically by Jules for task 13820141384899213654 started by @seonghobae