Super Charging AWS Lambda Kashif Mehmood 

Why should you care about Kotlin? 

Understanding Cold Starts Cold Starts in AWS Lambda: Delays caused by initializing the runtime environment and dependencies during the first invocation after inactivity. Cold Starts in AWS Lambda: Delays caused by initializing the runtime environment and dependencies during the first invocation after inactivity. Impact on Performance: Cold starts increase response times and reduce throughput, affecting real-time applications. Contributing Factors: Infrequent invocations, large function sizes, complex dependencies, and heavy libraries increase cold start occurrences 

Kotlin: A Modern Language for AWS Lambda Kotlin for AWS Lambda: A modern, concise language ideal for scalable serverless applications with strong type safety and seamless Java integration. Cold Starts in AWS Lambda: Delays caused by initializing the runtime environment and dependencies during the first invocation after inactivity. Benefits over Java: Kotlin's concise syntax, null safety, functional programming, and Java interoperability make it superior for Lambda development. Enhancing Lambda Development: Kotlin's coroutines, data classes, and lambda expressions boost efficiency, maintainability, and reduce errors in Lambda functions. 

The Holy Graal GraalVM Overview: A high-performance, polyglot virtual machine supporting multiple languages, ideal for efficient, scalable applications. Truffle Framework: Truffle allows for the implementation and efficient execution of multiple languages within GraalVM. Polyglot Nature: GraalVM enables seamless integration of different languages within a single application for complex, interoperable systems. Difference from Traditional JVM: GraalVM employs advanced optimizations like AOT compilation, offering faster startup times and better runtime performance. Benefits for Serverless: GraalVM's native image generation reduces cold start times and boosts performance in serverless environments like AWS Lambda. 

The Holy Graal - Polyglot 

The Holy Graal Start Fast Low Resource Usage Minimize Vulnerability Compact Packaging 

Start Fast JIT Load JAR files from disk Uncompress class files Verify class definitions Execute in interpreter (~20x slower) Gather profiling feedback Compile to machine code Execute at peak performance AOT Load executable from Disk Execute at Peak Performance 

Low Memory Usage 

Memory Scalability 

Reduce Vulnerability • No new unknown code can be loaded at run time • Only paths proven reachable by the application are included in the image • Reflection is disabled by default and needs an explicit include list • Deserialization only enabled for specified list of classes • Just-in-time compiler crashes, wrong compilations, or “JIT spraying” to create machine code gadgets are impossible 

Lightweight Applications 

Use Cases 

Use Cases 

Kotlin is Multiplatform Kotlin can run everywhere, can be transpiled to Js, ObjC, Swift and more. 

Kotlin is Multiplatform 

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