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
// 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.