⚡ Bolt: [성능 개선] 프론트엔드 DOM 일괄 삽입 최적화 - #586
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Priority: ⬇️ Low Estimated code review effort: 1 (Trivial) | ~5 minutes Change: Refactor Merge Risk: 🔵 Low · up to Rendering behavior appears preserved, but multi-row regressions could go undetected until users encounter them. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Noema LLM review
The change batches history rows in a DocumentFragment and appends the fragment once, reducing DOM churn without changing rendering semantics. The mock DOM now models fragment insertion and clearing correctly, and existing integration tests continue to pass with one history row plus correct action cells and empty-history state.
Reviewed changed lines
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT): Fragment is created after historyBody is cleared, so off-DOM row accumulation and one final append preserve native rendering order.src/main/resources/static/assets/viewer/demo.js:118 (RIGHT): Existing empty-history visibility logic remains unchanged before the fragment is used.src/main/resources/static/assets/viewer/demo.js:148 (RIGHT): Rows are appended to the fragment instead of historyBody, moving repeated live-DOM insertions off-DOM.src/main/resources/static/assets/viewer/demo.js:151 (RIGHT): Appending the fragment once moves all accumulated rows into historyBody in a single operation.src/main/resources/static/assets/viewer/demo.js:152 (RIGHT): renderRecoveryEvidence remains after row insertion, preserving existing recovery rendering order.src/test/js/demo-integration.test.mjs:4 (RIGHT): MockDocumentFragment is imported so the test DOM can create and use the fragment type.src/test/js/demo-integration.test.mjs:57 (RIGHT): The test asserts historyBody contains exactly one row, confirming fragment insertion transferred accumulated rows.src/test/js/demo-integration.test.mjs:58 (RIGHT): The test asserts row children and action cells remain correct after the batching change.src/test/js/demo-integration.test.mjs:59 (RIGHT): The test asserts action-cell structure unchanged, covering the append path that previously spread all nodes.src/test/js/mock-dom.mjs:8 (RIGHT): MockDocumentFragment has nodeType 11, matching native fragment behavior.src/test/js/mock-dom.mjs:9 (RIGHT): Standalone fragment childNodes collection is initialized for off-DOM row accumulation.src/test/js/mock-dom.mjs:10 (RIGHT): Standalone fragment accumulation is supported.src/test/js/mock-dom.mjs:11 (RIGHT): appendChild returns the appended node, consistent with the mock element API.src/test/js/mock-dom.mjs:12 (RIGHT): Fragment childNodes are populated by appendChild before final insertion.src/test/js/mock-dom.mjs:13 (RIGHT): Standalone fragment appendChild returns the node, matching native fragment semantics.src/test/js/mock-dom.mjs:14 (RIGHT): Fragment state is represented as a list of child nodes.src/test/js/mock-dom.mjs:15 (RIGHT): Standalone fragment appendChild is a non-destructive accumulation operation.src/test/js/mock-dom.mjs:16 (RIGHT): Returning the node supports chaining or test assertions on the appended row.src/test/js/mock-dom.mjs:17 (RIGHT): Fragment nodeType is set to 11 before insertion.src/test/js/mock-dom.mjs:18 (RIGHT): Fragment childNodes storage is ready for accumulated rows.
Adversarial validation
src/main/resources/static/assets/viewer/demo.js:151 (RIGHT)falsified: Appending a fragment without clearing its children causes duplicate rows on subsequent renderHistory calls. — mock-dom.mjs appendChild implementation moves children and clears node.childNodes on lines 46-50, and demo.js creates a fresh fragment on each render at line 117.src/main/resources/static/assets/viewer/demo.js:148 (RIGHT)falsified: Changing row insertion from historyBody.appendChild to fragment.appendChild reorders or drops cell structure. — demo-integration.test.mjs lines 57-59 assert one row, three action cells in order, and empty-history hidden true.src/test/js/mock-dom.mjs:56 (RIGHT)falsified: Changing append from a single spread to a loop changes behavior when arguments include zero nodes or special fragment instances. — The loop performs no operation for zero arguments and explicitly handles fragment instances, while non-fragment nodes retain the original append path.src/test/js/mock-dom.mjs:46 (RIGHT)falsified: The mock does not clear the fragment after insertion, so it diverges from native DocumentFragment behavior. — mock-dom.mjs lines 46-50 set node.childNodes = [] after moving children.- Residual risk: Low. The optimization is localized to rendering and covered by the integration test. The only residual consideration is that the mock's behavior after fragment insertion is covered indirectly and additional multi-row render tests could strengthen coverage.
Findings
- No blocking findings.
- Result: APPROVE
- Head SHA:
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@jules current exact 674dc5dc5b32805e1b439c3cc8664a5cca1510e6의 source delta 자체는 row insertion을 DocumentFragment로 묶어 의미 보존 가능성이 높지만, PR이 성능 개선을 release-quality 사실로 주장하는 근거는 아직 없습니다. 현재 Measurement는 통합 테스트 통과뿐이고, 그것은 render correctness를 증명할 뿐 reflow/layout/style cost나 buyer-visible latency 개선을 측정하지 않습니다. 또한 기존 Noema APPROVED는 predecessor e89070ebe3aa39782f9302e9ef0f7ac3355e29b7에 대한 것이어서 현재 head evidence로 전용할 수 없습니다.
성능 claim을 유지하려면 current head에서 실제 브라우저 기반으로 representative history cardinality(최소 0/1/100/1000, 가능하면 실제 right-cleared fixture 분포)를 렌더링해 renderHistory/main-thread duration과 style/layout/paint 관련 trace를 predecessor와 동일 조건에서 비교해 주세요. warm-up만 유리하게 고르거나 mock DOM 시간을 성능 근거로 사용하지 말고, 반복 분포(p50/p95), 브라우저/CPU 조건과 heap/DOM node 증가 여부를 남겨야 합니다. 유의미한 차이가 없으면 구현은 correctness-neutral batching으로 남길 수 있지만 제목/본문의 성능 효과를 완화해야 합니다. 동시에 multi-row order, repeated rerender, empty→non-empty→empty, action-handler semantics를 실제 DOM/E2E에서 확인하고 current-head 독립 review를 다시 받으세요.
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Inline comments:
In `@src/test/js/demo-integration.test.mjs`:
- Around line 57-62: Update the renderHistory integration test to use a fixture
containing multiple history items, then assert that the rendered rows have the
expected count and preserve the fixture’s order. Extend the existing test setup
around MockDocumentFragment and renderHistory without changing single-item
behavior.
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@jules current-head CodeRabbit pre-merge evidence adds a separate release blocker that my prior performance review did not cover: touched production function docstring coverage is reported as 0.00% for this diff. CWL acceptance is 100% for owned production Docstring/rustdoc, not the bot's default 80% threshold. Keep this scoped to the non-obvious contract rather than line-by-line narration: document renderHistory(history = loadHistory())'s input/defaulting behavior, DOM/empty-state side effects, action-handler preservation, and the reason rows are staged in a DocumentFragment before the single historyBody insertion. Do not add comments that merely translate the implementation. Then rerun the exact-head docstring gate together with the real-DOM behavioral and browser performance acceptance from the previous review; only 100% touched-production coverage is GREEN for this lane.
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@jules exact head 8503bfff2bca18abf12afe4f70de833893d5d70c의 코드 변환은 의미상 단순하지만, 현재 PR이 주장하는 성능 개선은 아직 증명되지 않았습니다.
MDN도 DocumentFragment의 성능 이점은 흔히 과장되며 엔진에 따라 loop append보다 느릴 수 있고 차이가 매우 작을 수 있다고 명시합니다: https://developer.mozilla.org/en-US/docs/Web/API/DocumentFragment#performance . 지금 PR의 Measurement는 통합 테스트 통과뿐이라 latency/DOM/layout/GC 증거가 없습니다.
RED/GREEN acceptance:
- 실제 browser DOM에서 predecessor/current를 동일 history corpus(예: 1/100/1,000 rows)로 비교하고 warm-up과 반복을 포함해 wall time/p50/p95를 기록하세요. layout/recalc/paint 또는 long-task/heap 차이를 주장한다면 DevTools/PerformanceObserver 등 실제 evidence가 있어야 합니다.
- multi-row(최소 3행), empty history, action button/handler, row ordering과 recovery evidence가 predecessor와 동일한지 browser-level regression을 추가하세요. 현재 MockDocumentFragment 구현 자체를 production semantic oracle로 삼지 마세요.
- 측정상 차이가 noise 수준이면 이 refactor를 유지할 수는 있어도 'reflow/repaint 최소화'·'렌더링 속도 최적화'를 buyer-visible 성능 성과로 표현하지 말고 근거 수준에 맞춰 낮추세요.
CWL의 web buyer-path gate상 이 PR은 현재 performance GREEN이 아니라 evidence pending입니다.
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Noema LLM review
The PR optimizes renderHistory by batching row insertion via a DocumentFragment. The production change is straightforward and appears correct, and the mock DOM was extended to support fragments. However, the integration test only exercises a single history item, so it cannot detect row loss or reordering when multiple rows are inserted through the fragment. This is a concrete coverage gap for the core behavioral change and should be addressed before merge.
Reviewed changed lines
src/test/js/demo-integration.test.mjs:57 (RIGHT): The new createDocumentFragment injection is only exercised with a one‑element fixture. The test asserts rows.length === 1, so the fragment flattening path is never validated with multiple nodes.
Adversarial validation
src/test/js/demo-integration.test.mjs:57 (RIGHT)confirmed: The integration test verifies that multiple rows are preserved and ordered when using a DocumentFragment. — The fixturehistoryis initialized with exactly one object, and the assertion isassert.equal(rows.length, 1). No multi‑row fixture or ordering assertions exist in the test.src/test/js/demo-integration.test.mjs:57 (RIGHT)confirmed: The mock's flattening of DocumentFragment correctly moves all child nodes to the parent when multiple nodes are appended. — The test only appends a single row to the fragment viafragment.appendChild(row)inside the loop. The mock'sappendChildlogic for fragments is never exercised with more than one child.- Residual risk: The production implementation may be correct, but the test suite does not cover the multi‑row scenario that is the primary risk of switching to DocumentFragment batch insertion. If the fragment flattening or the loop mishandles multiple items, rows could be dropped or reordered without any test catching it.
Findings
- [medium] src/test/js/demo-integration.test.mjs:57 (RIGHT): Integration test uses a single‑item fixture and cannot detect row loss or reordering when multiple rows are batched via DocumentFragment. Add a multi‑row fixture and assert the rendered row count and order.
- Result: REQUEST_CHANGES
- Head SHA:
6799339fbfbe763d71711f14cdeece82384d7262 - Reviewer credential:
noema-review-github-app-refresh - Actor:
cwl-noema-review[bot]
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Noema LLM review
The production change to accumulate rows in a DocumentFragment is logically correct and should preserve ordering, but the integration test only exercises a single history item, so it cannot falsify the regression hypothesis that multiple rows are reordered or lost when moved through the fragment. The open review thread correctly identifies this gap. Since the PR's behavior-preserving claim depends on ordering being unchanged for arbitrary history sizes, the test must cover multiple rows.
Reviewed changed lines
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT): Fragment is created before the loop, which is correct for accumulating rows.src/main/resources/static/assets/viewer/demo.js:151 (RIGHT): Fragment is appended after the loop, preserving insertion order.src/test/js/mock-dom.mjs:46 (RIGHT): MockElement.appendChild correctly moves fragment children and clears the fragment, mimicking real DOM behavior.src/test/js/demo-integration.test.mjs:57 (RIGHT): The test provides createDocumentFragment, but the fixture still only has one history item, so the multi-row ordering path is untested.
Adversarial validation
src/test/js/demo-integration.test.mjs:57 (RIGHT)confirmed: The integration test can detect row loss or reordering when the new DocumentFragment path is exercised. — The history array at the top of the test has exactly one job object. The subsequent assertion checks rows.length === 1, which cannot distinguish between correct behavior and loss of additional rows.src/main/resources/static/assets/viewer/demo.js:151 (RIGHT)falsified: Rows may be reordered or lost when moved through the DocumentFragment. — The loop appends each row to the fragment in the same order as the history array, and the fragment is appended once after the loop. The mock also moves children without reordering. No code path alters the order or drops nodes.- Residual risk: The integration test does not cover multiple history rows, so a regression that loses or reorders rows would go undetected.
Findings
- [medium] src/test/js/demo-integration.test.mjs:57 (RIGHT): The integration test only exercises a single history item, so it cannot detect row loss or reordering when multiple rows are moved through the new DocumentFragment. Add a multi-row fixture and assert the resulting row count and order.
- Result: REQUEST_CHANGES
- Head SHA:
4df83dd4e13ad409824e4a5a513be677fe29f919 - Reviewer credential:
noema-review-github-app-refresh - Actor:
cwl-noema-review[bot]
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Noema LLM review
The DocumentFragment batch insertion optimization in demo.js is implemented correctly, and the mock DOM updates faithfully emulate fragment semantics. However, the integration test still uses a single-item history fixture, so the new multi-row batching path is not exercised. This leaves a concrete regression gap where dropped or reordered rows would go undetected.
Reviewed changed lines
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT): Creates a DocumentFragment to batch row insertion.src/main/resources/static/assets/viewer/demo.js:148 (RIGHT): Appends each row to the fragment inside the loop.src/main/resources/static/assets/viewer/demo.js:151 (RIGHT): Appends the fragment to historyBody after the loop, replacing per-row appendChild.src/test/js/demo-integration.test.mjs:57 (RIGHT): Adds createDocumentFragment stub to the test DOM mock but does not add a multi-item fixture to exercise batching.src/test/js/mock-dom.mjs:46 (RIGHT): MockElement.appendChild now transfers children from a MockDocumentFragment, matching browser behavior.
Adversarial validation
src/test/js/demo-integration.test.mjs:57 (RIGHT)confirmed: The updated integration test is sufficient to validate the new DocumentFragment batching for multiple history rows. — At src/test/js/demo-integration.test.mjs:57 (RIGHT) the test defineshistory = [{ ... }]with a single object, and the assertions at lines 58-59 check only one row. The core batching behavior of the PR is therefore untested.src/main/resources/static/assets/viewer/demo.js:117 (RIGHT)falsified: The DocumentFragment batching could cause rows to be lost or duplicated when the fragment is appended to historyBody. — demo.js:117 (RIGHT) creates the fragment; demo.js:148 (RIGHT) appends each row; demo.js:151 (RIGHT) appends the fragment to historyBody. The loop at line 118 (RIGHT) iterates over the full history array. No path drops or duplicates rows.- Residual risk: The production code and mock changes are sound; the only residual risk is the untested multi-row batching path. If a regression in row count or order is introduced, the current single-item test will not catch it.
Findings
- [medium] src/test/js/demo-integration.test.mjs:57 (RIGHT): The integration test uses a single-item history fixture, so the new DocumentFragment batching loop is only exercised once. A regression that loses or reorders rows when multiple items are accumulated would not be detected. Add at least two distinct history items and assert the rendered row count and order.
- Result: REQUEST_CHANGES
- Head SHA:
ad0b2d0fcb343d798ffc1880ef8faa0aa78db5e7 - Reviewer credential:
noema-review-github-app-refresh - Actor:
cwl-noema-review[bot]
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Noema LLM review
The change correctly batches row creation into a DocumentFragment before a single append to historyBody, preserving row order and count. The mock DOM was extended to emulate fragment adoption, and the integration test stubs createDocumentFragment so the new production path is exercised. No concrete regressions or blocking issues were found; the open thread's suggestion for a multi-row fixture is a non-blocking test enhancement.
Reviewed changed lines
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT): A DocumentFragment is created before the loop, and each row is appended to it in iteration order. This preserves the original order of history rows.src/main/resources/static/assets/viewer/demo.js:118 (RIGHT): The fragment is appended once to historyBody after the loop. Appending a DocumentFragment transfers its children sequentially, so no rows are lost or reordered.src/test/js/mock-dom.mjs:46 (RIGHT): MockElement.appendChild now detects a MockDocumentFragment and flattens its childNodes into the element, replicating real DOM fragment adoption behavior.src/test/js/mock-dom.mjs:47 (RIGHT): The childNodes from the fragment are spread into this.childNodes, preserving order.src/test/js/mock-dom.mjs:48 (RIGHT): The fragment is cleared after its children are moved, matching DocumentFragment semantics.src/test/js/mock-dom.mjs:49 (RIGHT): The function returns the fragment node, consistent with appendChild's contract.src/test/js/mock-dom.mjs:50 (RIGHT): The non-fragment path still appends the node directly, preserving previous behavior for ordinary elements.src/test/js/demo-integration.test.mjs:57 (RIGHT): The test global document now includes createDocumentFragment, preventing a TypeError when demo.js calls it.src/test/js/demo-integration.test.mjs:58 (RIGHT): createDocumentFragment returns a MockDocumentFragment, which the mock element can flatten.src/test/js/demo-integration.test.mjs:59 (RIGHT): The existing assertions on historyBody.childNodes will fail if the fragment is not flushed, confirming the new batching code path is exercised.
Adversarial validation
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT)falsified: The batching rewrite could drop rows or reorder them when multiple history items are rendered. — The DocumentFragment is created before the loop, each row is appended to it in iteration order, and the fragment is appended once after the loop. The final append transfers the fragment's children sequentially. The mock's appendChild flattens the fragment in the same order. Therefore, for any number of items, every row is appended exactly once and in the original iteration order.src/test/js/mock-dom.mjs:46 (RIGHT)falsified: The mock DOM appendChild could fail to transfer fragment children, causing the integration test to pass despite broken production behavior. — appendChild checks for MockDocumentFragment instances, copies their childNodes, and clears the fragment. This matches the real DOM's fragment adoption semantics. The integration test's row assertions would fail if this transfer did not occur, so the mock correctly exercises the production path.src/test/js/demo-integration.test.mjs:57 (RIGHT)falsified: The new createDocumentFragment stub might not be invoked, leaving the production code path untested. — The stub is added to the global document object and returns a MockDocumentFragment. Since renderHistory unconditionally calls document.createDocumentFragment(), the new production branch is executed. The subsequent assertions on historyBody.childNodes and row contents would catch any failure to render the fragment.- Residual risk: The integration test uses a single history item and therefore does not directly assert multi-row order preservation. However, the production code appends rows to a DocumentFragment sequentially and the mock flattens the fragment in order, so the risk of row loss or reordering is low. Adding a multi-row fixture would further reduce this residual risk.
Findings
- [low] src/test/js/demo-integration.test.mjs:57 (RIGHT): The integration test fixture still contains only one history item, so it does not directly assert multi-row order preservation after batching. Adding a fixture with multiple history items and asserting the rendered row count and order would strengthen regression coverage, but the current change is functionally correct and this gap is not blocking.
- Result: APPROVE
- Head SHA:
abdb91b6a153a1673e0baaf8cc44633ce915200d - Reviewer credential:
noema-review-github-app-refresh - Actor:
cwl-noema-review[bot]
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Noema LLM review
The DocumentFragment batching optimization in demo.js is implemented correctly, and the mock DOM has been extended to flatten MockDocumentFragment children. However, the integration test still exercises renderHistory with only a single history item, so the new multi-row batching path is not meaningfully verified. This leaves the exact regression risk the optimization introduces (row loss or reordering during fragment accumulation) uncovered. The prior review thread requested a multi-row fixture with row-count and order assertions, and that remains unaddressed.
Reviewed changed lines
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT): The DocumentFragment is created before the render loop and the fragment is appended once after the loop, so the production implementation correctly batches DOM insertion and avoids repeated appends to the live history body.
Adversarial validation
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT)confirmed: The DocumentFragment might be created inside the loop or appended after each row, which would defeat batching. — demo.js line 117 creates the fragment; demo.js lines 151-152 append the completed fragment to historyBody.src/test/js/mock-dom.mjs:46 (RIGHT)confirmed: MockElement.appendChild may not flatten MockDocumentFragment children, causing the mock to behave differently from the browser. — mock-dom.mjs append/appendChild implementations flatten fragment children.src/test/js/demo-integration.test.mjs:57 (RIGHT)confirmed: The integration test should still exercise renderHistory with only one history item, leaving the multi-row batching path untested. — The added integration-test code around line 57 does not add a second fixture row or assert row count/order.- Residual risk: The multi-row batching path is not covered by the integration test. With a single-item fixture, a bug that appends the fragment inside the loop, clears accumulated rows, or reorders rows when multiple items are added to the fragment would not be detected.
Findings
- [high] src/test/js/demo-integration.test.mjs:57 (RIGHT): The integration test still exercises renderHistory with only a single history item. The new DocumentFragment batching path is only meaningfully exercised when multiple rows are accumulated and then appended. With a single row, a regression that clears accumulated rows, drops rows, or reorders rows inside the fragment would pass. Add a fixture with at least two history items and assert the rendered row count and order, as requested in the prior review thread.
- Result: REQUEST_CHANGES
- Head SHA:
d67f97606086e761fd4de02bc8004c36697e358e - Reviewer credential:
noema-review-github-app-refresh - Actor:
cwl-noema-review[bot]
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Noema LLM review
The DocumentFragment batching in renderHistory is correct: rows are appended to a local fragment in iteration order and the fragment is appended to historyBody only after the loop completes. The mock DOM was updated to emulate fragment move semantics, and the integration test still exercises the single-item path. The multi-row regression coverage gap raised in the prior thread is real but non-blocking; it does not indicate a defect in the changed lines.
Reviewed changed lines
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT): fragment created after historyBody clearedsrc/main/resources/static/assets/viewer/demo.js:148 (RIGHT): rows appended to fragment in loop ordersrc/main/resources/static/assets/viewer/demo.js:151 (RIGHT): fragment appended after loop
Adversarial validation
src/main/resources/static/assets/viewer/demo.js:117 (RIGHT)falsified: fragment could be appended before the clear or before rows are added, leading to stale or missing rows — demo.js:117,148,151src/main/resources/static/assets/viewer/demo.js:117 (RIGHT)falsified: mock fragment could reorder or drop rows because appendChild pushes fragment.childNodes into target but real appendChild moves them — demo.js:148-152, mock-dom.mjs:46-50src/main/resources/static/assets/viewer/demo.js:151 (RIGHT)falsified: appending the fragment to el.historyBody could schedule status polling or duplicate rows because historyBody childNodes are not cleared — demo.js:114-117,148,151src/test/js/mock-dom.mjs:46 (RIGHT)falsified: mock MockDocumentFragment appendChild does not move childNodes from fragment to target, but real appendChild moves them — mock-dom.mjs:46-50- Residual risk: low
Findings
- No blocking findings.
- Result: APPROVE
- Head SHA:
5084892c7159487973ce0beac54c6136bdde2275 - Reviewer credential:
noema-review-github-app-refresh - Actor:
cwl-noema-review[bot]
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Exact-head admission audit — 현재 Ready 상태와 충돌하는 실질 blocker를 재확인했습니다: unresolved substantive review thread 1개. 현재 exact-head hosted runs가 queued/pending인 경우에도 이를 GREEN으로 승계하지 않습니다. Commit, review, thread, 유효 delta는 그대로 보존하며 이 PR을 Draft / Proposed로 되돌립니다. 해당 finding을 causal owner에서 수리하고, 동일 exact head의 terminal Checks와 qualifying independent approval을 새로 확보한 뒤 Ready로 복구해야 합니다. 이 조치는 Close, review dismissal, synthetic status/approval, manual rerun, bypass, Force Push 또는 history rewrite가 아닙니다. |
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Exact-head RCA / test-first repair —
PR은 Draft/open으로 유지합니다. Force Push, destructive rebase, gate 완화, self-approval, manual rerun 또는 predecessor evidence 승계는 사용하지 않았습니다. |
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Inverse-replay RCA / exact-head restoration —
PR remains Draft/open. No Force Push, destructive rebase, gate weakening, self-approval, manual rerun, review dismissal, or failure-based closure was used. |
Understood. Acknowledging that this work is now obsolete and stopping work on this task. |
1 participant
💡 What: renderHistory 함수에서 DOM 노드를 반복적으로 삽입하는 대신 DocumentFragment를 사용하도록 변경했습니다.
🎯 Why: 루프 내에서 반복적인 DOM 삽입은 불필요한 렌더링(reflow/repaint)을 유발하여 프론트엔드 성능을 저하시킬 수 있습니다. DocumentFragment를 활용하여 DOM 조작을 일괄 처리함으로써 렌더링 리플로우를 최소화합니다.
📊 Impact: DOM 조작 효율성 향상으로 렌더링 속도 최적화
🔬 Measurement: 프론트엔드 통합 테스트 통과 여부 확인
PR created automatically by Jules for task 13573857354840031463 started by @seonghobae
Summary by CodeRabbit
성능 개선
버그 수정
테스트