Backend:
- Track all k6 HTTP phase metrics via PHASE_MAP in ingestPoint:
http_req_blocked (DNS+wait), http_req_connecting, http_req_tls_handshaking,
http_req_sending, http_req_waiting (TTFB), http_req_receiving
- Compute avg + p95 per phase in computeLiveMetrics, broadcast every second
- parseSummary now captures all trend metrics with generic trendRe()
Frontend:
- Live waterfall bar chart updates every second during the test
- Each phase has a distinct colour: indigo/sky/purple/emerald/amber/blue
- Bar width = phase avg as % of total request time
- TTFB p95 + p99 shown below the waterfall
- Bars animate smoothly with CSS transitions
- Waterfall resets cleanly on new test start
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Backend:
- Re-add --out json=- but properly route: JSON lines → metric
aggregation, non-JSON lines → text log (summary text lands in log)
- Aggregate http_req_duration / http_reqs / http_req_failed / checks
per test into live state (capped 50k samples)
- Broadcast { metrics: {...} } SSE events every second with
score, checksRate, httpOkRate, p90/p95/p99, req/s etc.
- computeScore() composite 0-100 based on p95 + error rate
Frontend:
- 3 animated SVG ring gauges: Score (/100), Checks OK (%), HTTP OK (%)
- Smooth CSS transition on stroke-dashoffset (0.7s cubic-bezier)
- Pulse animation while test is live, stops on completion
- Color: green ≥90/98/99, yellow mid-range, red below thresholds
- Stats strip: Requests, Req/s, Avg, p(90), p(95), p(99)
- p(95) cell color-coded green/yellow/red vs latency
- Threshold pass/fail banner at bottom of gauges panel
- Raw output collapsed in <details> by default
- History items show mini score ring gauge (44px) inline
- History detail expands 3 medium gauges + stat grid
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Segmented Desktop / Mobile button in the form
- Desktop: Chrome 124 on Windows
- Mobile: iPhone Safari 17 (iOS 17.4)
- User-Agent injected into k6 script headers
- Stored in DB with migration for existing data
- History items show device pill alongside cache/gzip
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Cache-mode selector: Normal, No-cache headers, Cache-bust URL+headers
- Cache-bust appends random ?_cb= per iteration to bypass CDN/proxy
- gzip toggle: on = k6 default (Accept-Encoding: gzip/br), off = identity
- Both options stored in DB with non-destructive migration
- History items show cache-mode and gzip pills
- Schema migration handles existing DBs gracefully
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Multi-stage Dockerfile builds k6 from source (grafana/k6)
- Express backend with SSE live output streaming
- SQLite-backed test history with delete support
- Frontend: URL input, VUs, duration, RPS limit, custom headers
- Persisted via Docker volume, listens on port 8118
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
