Atlas › 05 Performance & Chaos Engineering › Serverless Performance Testing☰ Read as one page
Serverless Performance Testing
13.1The Unique Challenges of ServerlessServerless functions (AWS Lambda, Google Cloud Functions, Azure Functions) introduce performance characteristics absent from traditional…13.2Key Challenges and Testing Strategies13.3Cold Start Deep DiveCold starts are the most impactful serverless performance concern. A cold start occurs when the cloud provider needs to:13.4Concurrency Limit TestingEvery serverless provider enforces concurrency limits. Hitting the limit results in throttling (429 errors) that can cascade through your…13.5Memory Configuration TestingFor AWS Lambda, CPU is proportional to memory. More memory means more CPU, which can reduce execution time enough to offset the higher…13.6Serverless Performance Optimization Checklist13.7When Serverless Is NOT the Right ChoicePerformance testing may reveal that serverless is wrong for your use case: