AWS Lambda Performance Optimization

# AWS Lambda Performance Optimization

Learn how to optimize your Lambda functions for maximum performance and cost efficiency.

## Optimization Strategies

### 1. Cold Start Reduction
- Use provisioned concurrency
- Minimize package size
- Choose appropriate runtime

### 2. Memory Configuration
Right-sizing memory allocation can improve both performance and cost.

### 3. Connection Pooling
Reuse database connections across invocations.

## Example

```javascript
// Reuse connections
let dbConnection = null

export const handler = async (event) => {
if (!dbConnection) {
dbConnection = await createConnection()
}

// Use connection
const result = await dbConnection.query('SELECT * FROM users')

return {
statusCode: 200,
body: JSON.stringify(result)
}
}
```

## Monitoring

Use CloudWatch and X-Ray to monitor and optimize your functions.