# Complete - m-performance-hotspot-optimization/14+13_kotlin_ws_transport_hardening

## 완료 일시

2026-06-06

## 요약

Kotlin WS transport hardening completed in one review loop; final verdict PASS.

## 루프 이력

| Plan | Review | Verdict | 메모 |
|------|--------|---------|------|
| `plan_local_G08_0.log` | `code_review_local_G08_0.log` | PASS | WS server TCP_NODELAY, OkHttp send spread-copy removal, large payload correctness test, and required verification passed |

## 구현/정리 내용

- Java-WebSocket server accepted sockets now enable `TCP_NODELAY` in `WsServer.onConnect`.
- OkHttp WS client send path now avoids Kotlin vararg spread-copy by building the outbound `ByteString` through Okio `Buffer`.
- `WsTest` now includes a large payload request-response roundtrip to guard payload preservation.
- WS receive staging remained unchanged because diagnostics showed no dropped frames or backlog leak.

## 최종 검증

- `cd kotlin && ./gradlew test` - PASS; BUILD SUCCESSFUL in 1s.
- `bash agent-ops/skills/project/run-proto-socket-test-matrix/scripts/run_stress.sh --quick --lang kotlin --transport tcp,ws --profile roundtrip,payload` - PASS; DONE kotlin rows=12 skips=0 required_skips=0 violations=0, result file `agent-test/runs/20260606-121117-proto-socket-stress-quick.md`.
- `bash agent-ops/skills/project/run-proto-socket-test-matrix/scripts/run_performance.sh --quick` - PASS; same-language/cross-language/typescript-gateway all PASS, regression SKIPPED, result file `agent-test/runs/20260606-121129-proto-socket-performance-quick.md`.
- `git diff --check` - PASS; no whitespace errors.

## Roadmap Completion

- Milestone: `agent-roadmap/milestones/performance-hotspot-optimization.md`
- Completed task ids:
  - `kotlin-ws-delay`: PASS; evidence=`agent-task/archive/2026/06/m-performance-hotspot-optimization/14+13_kotlin_ws_transport_hardening/plan_local_G08_0.log`, `agent-task/archive/2026/06/m-performance-hotspot-optimization/14+13_kotlin_ws_transport_hardening/code_review_local_G08_0.log`; verification=`cd kotlin && ./gradlew test`, `run_stress.sh --quick --lang kotlin --transport tcp,ws --profile roundtrip,payload`, `run_performance.sh --quick`
- Not completed task ids: 없음

## 잔여 Nit

- 없음

## 후속 작업

- 없음
