Gap: Performance Benchmarks & SLOs
Status: 🔴 Not Started Priority: Important (Pre-Scale) Estimated Effort: 2-3 days
What's Missing
Concrete performance targets and benchmarks including:
Response Time Targets
- p50, p95, p99 targets per endpoint category
- Read vs. write operation targets
- Complex operation targets (PDF generation, segment evaluation)
Throughput Targets
- Requests per second by endpoint
- Concurrent user capacity
- Database queries per second
Capacity Planning
- Users per organization limits
- Appointments per day capacity
- Form submissions per day capacity
- Concurrent videocalls supported
Database Benchmarks
- Query performance baselines
- Connection pool sizing formulas
- Index coverage targets
- Query timeout justifications
Scaling Triggers
- When to add read replicas (concrete metrics)
- When to scale vertically (CPU/memory thresholds)
- When to move to Phase 2/3/4 infrastructure
Load Testing Results
- k6 test scenarios and results
- Bottleneck identification
- Breaking point analysis
- Recommendations from load tests
Why Important
- SLOs - Cannot guarantee 99.5% uptime without targets
- Capacity Planning - Need to know when to scale
- Performance Regression - Need baselines to detect slowdowns
- Customer Expectations - White-label / negotiated-contract customers need performance guarantees
Current State
- Monitoring targets exist (e.g., < 500ms p95)
- Scaling phases documented
- No concrete benchmarks
- No load testing results
Recommended Location
docs/performance/ directory with:
README.md- Performance overviewbenchmarks.md- Baseline performance metricsslos.md- Service level objectivesload-testing.md- Load testing methodology and resultscapacity-planning.md- Capacity planning formulas
Success Criteria
- [ ] Baseline benchmarks established for all endpoint categories
- [ ] p50/p95/p99 targets defined
- [ ] Throughput targets documented
- [ ] Load testing scenarios executed
- [ ] Scaling triggers quantified
- [ ] Capacity planning formulas documented