Lambda Function Configuration (Runtime, Memory, Timeout)

Configuring a Lambda function correctly is the difference between a performant, cost-efficient function and one that times out, runs out of memory, or costs more than necessary. This lesson covers the key configuration options — runtime selection, memory and CPU allocation, timeout settings, concurrency controls, and deployment packaging.

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Runtime Selection

The runtime determines which programming language and version your function uses. AWS provides managed runtimes that include the language interpreter, SDK, and operating system dependencies.

Available Managed Runtimes