🟢 MEDIUM: Performance & Load Testing

[Salem874]

🎯 Description

Conduct load testing and performance optimization to ensure system can handle production traffic.

📋 Load Testing Scenarios

1. Concurrent Users:

• 100 concurrent users
• 500 concurrent users
• 1,000 concurrent users
• 5,000 concurrent users

2. API Endpoint Performance:

• /api/auth/login - target: <200ms
• /api/auth/register - target: <300ms
• /api/users/profile - target: <100ms
• /api/webhooks/receive - target: <50ms
• /api/payments/checkout - target: <500ms

3. Database Performance:

• Query execution times (all <100ms)
• Index effectiveness
• Connection pool sizing
• Slow query log analysis

4. Stress Testing:

• Database connection exhaustion
• Memory leak detection
• CPU spike handling
• Disk I/O limits

📋 Optimization Tasks

• Enable PHP OPcache
• Configure MySQL query cache
• Implement Redis/Memcached (if needed)
• Optimize database indexes
• Enable Gzip compression
• Configure browser caching
• CDN setup (Cloudflare)
• Image optimization
• Minify CSS/JS
• Lazy loading implementation

✅ Acceptance Criteria

• API response times meet targets
• System stable under 1,000 concurrent users
• No memory leaks detected
• Database queries optimized
• CDN configured and tested
• Performance report generated

⏱️ Estimated Effort

6-8 hours