Files

Matthew Raymer 21dcc71eae feat(docs): P3.1-E Add performance characteristics documentation

Created docs/PERFORMANCE.md with:
- Expected operation times (scheduling, recovery, database)
- Memory footprint estimates
- Platform-specific considerations
- Measurement methodology

Updated docs/00-INDEX.md to link PERFORMANCE.md.

Verification:
- Documentation created and linked ✅
- Drift guards present ✅

2025-12-23 06:39:39 +00:00

1.7 KiB

Raw Blame History

Performance Characteristics

Purpose: Expected performance characteristics and benchmarks for Daily Notification Plugin operations.
Owner: Development Team
Last Updated: 2025-12-22
Status: active

Expected Operation Times

Scheduling Operations

Schedule creation: < 50ms (typical), < 100ms (p95)
Schedule update: < 50ms (typical), < 100ms (p95)
Schedule deletion: < 50ms (typical), < 100ms (p95)

Recovery Operations

Cold start recovery: < 500ms (typical), < 1000ms (p95)
Force stop recovery: < 500ms (typical), < 1000ms (p95)
Boot recovery: < 1000ms (typical), < 2000ms (p95)

Database Operations

Query (getEnabled): < 50ms (typical), < 100ms (p95)
Query (getById): < 10ms (typical), < 20ms (p95)
Insert/Update: < 50ms (typical), < 100ms (p95)

Memory Footprint

In-memory metrics: ~10KB per 100 metrics
Event logs: ~5KB per 100 events
Total overhead: < 100KB (development mode), < 10KB (production, metrics disabled)

Platform-Specific Considerations

iOS

Background task time limits: ~30 seconds
CoreData auto-migration: typically < 100ms

Android

WorkManager execution time limits: flexible (minutes)
Room migrations: typically < 200ms

Web

No background execution limits
No native database operations

Measurement Methodology

Metrics are collected using:

performance.now() (Web/TypeScript)
System.currentTimeMillis() (Android)
Date.timeIntervalSince() (iOS)

All timings are in milliseconds.

See also:

SYSTEM_INVARIANTS.md — Enforced system invariants
docs/progress/03-TEST-RUNS.md — Test run history

1.7 KiB Raw Blame History