user-system/docs/evidence/ops/2026-03-27/observability/LOCAL_BASELINE_20260327-182005.md

Local Observability Baseline

• Generated at: 2026-03-27 18:20:30 +08:00
• Scope: single-node local baseline, not a production traffic certification result

Concurrent Login Baseline

• Source command: go test ./internal/e2e -run TestE2EConcurrentLogin -v -count=1
• Concurrency configured by test: 20
• Result: success=2 fail=18 status=map[200:2 429:18] total=117.7617ms avg=13.83308ms
• Interpretation: current login rate limiter absorbs most burst traffic with 429, while successful requests remained sub-second and no 5xx appeared.

Browser Flow Baseline

• Source command: cd frontend/admin && npm.cmd run e2e:auth-smoke:win
• login-initial: 99ms
• login-desktop: 186ms
• login-tablet: 117ms
• login-mobile: 96ms
• Interpretation: current raw CDP browser validation stayed well below the existing HighResponseTime alert threshold of 1s in deployment/alertmanager/alerts.yml.

Evidence Files

• concurrent-login-20260327-182005.txt
• raw-cdp-auth-smoke-20260327-182005.txt