user-system/docs/evidence/ops/2026-03-24/observability/LOCAL_BASELINE_20260324-090126.md

Local Observability Baseline

• Generated at: 2026-03-24 09:01:55 +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=99.6704ms avg=13.38931ms
• 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: 91ms
• login-desktop: 174ms
• login-tablet: 107ms
• login-mobile: 102ms
• 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-20260324-090126.txt
• raw-cdp-auth-smoke-20260324-090126.txt