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Lambda function is configured with 10,240 MB or more of memory

AWS_OPS_056 MEDIUM Cost

What it checks

Lambda function is configured with 10,240 MB or more of memory

Where it applies

Terraform: aws_lambda_function

CloudFormation: AWS::Lambda::Function

How to fix it

  1. Determine the compute mode and measure memory, CPU, concurrency and latency requirements before changing memory. For default compute, AWS Lambda Power Tuning can help compare measured configurations; validate its workload and pricing assumptions rather than treating its result as an automatic production change.
  2. For Managed Instances, review capacity-provider sizing and utilization together with MemoryThrottles and CPUThrottles and latency. Its smallest supported function size is 2 GB and 1 vCPU; preserve the supported memory-to-vCPU ratio and validate the workload. Choose a measured setting manually in the existing Terraform memory_size or CloudFormation/SAM MemorySize field; no universal replacement size is established.

Frameworks

These mappings are advisory, not an attestation of compliance.

Vendor documentation

All rules