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performance-test

Performance y load testing para apps Educabot (Go/TS/React/RN): k6 scripts, smoke/load/stress/soak/spike, thresholds por SLO, CI integration, reporte.

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SebastianLuser/claude-code-arcane3 stars(GitHub 3 + cccskills 0)

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performance-test — Load & Performance Testing

Framework basado en k6 (Grafana Labs) — scripting JS, ejecución Go, integración Prometheus/Grafana.

Test Types

TipoObjetivoDuraciónVUs
SmokeVerificar sin error grueso1-2min1-5
LoadCarga esperada sostenida15-30minN esperado
StressEncontrar breaking point30-60minRamp hasta romper
SoakDegradación/leaks sostenido2-8hN esperado
SpikeResiliencia picos súbitos5-15min0→10x→0

Project Structure

perf/k6/
  config/envs.js, thresholds.js
  lib/auth.js, data.js
  scenarios/smoke.js, load-api.js, stress-login.js, soak-dashboard.js
  results/  (gitignored)

Thresholds from SLOs

SLO availability 99.9% → http_req_failed: rate<0.001. SLO p95 <500ms → http_req_duration: p(95)<500. Test falla (exit 1) si no se cumple → gate en CI.

Execution

k6 run k6/scenarios/smoke.js
BASE_URL=https://staging.educabot.com k6 run k6/scenarios/load-api.js
k6 run -o experimental-prometheus-rw k6/scenarios/load-api.js

CI Integration

  • Scheduled weekly (lunes 3am) con workflow_dispatch manual
  • Solo smoke en PRs — stress/soak en scheduled/manual
  • Upload results/summary.json como artifact

Key Metrics

MétricaQué significa
http_req_durationLatencia total (DNS+TCP+TLS+server)
http_req_waitingTTFB — latencia server
http_req_failedError rate
iterationsCompletaciones del flow

Quick Diagnosis

SeñalProbable causa
p95 alto + error rate bajoServer lento → profiler (pprof/clinic.js)
Error rate sube con VUsSaturación → pool DB, file descriptors, CPU
p99 >> p95Long-tail → GC, cold cache, head-of-line blocking
Throughput plateauBottleneck identificado (DB/CPU/red)

Checklist

  • Avisar al team (Slack)
  • Confirmar env staging/perf (NO prod sin autorización)
  • Feature flags para disable paths destructivos
  • Monitorear dashboards en tiempo real
  • Plan rollback si rompe shared resources
  • Teardown data generada post-test

Anti-patterns

  • Load test contra prod sin aviso, thresholds sin relación a SLO
  • Stress en cada PR (ruidoso, costoso), test users compartidos con reales
  • Sin think time (tráfico irreal), confundir VUs = RPS
  • No limpiar data generada, correr desde laptop (red falsea p95)

Grafana Dashboard

Import template ID 19665 (k6 Prometheus): RPS por endpoint, p50/p95/p99, error rate por status, VUs vs throughput.

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