The "Init Duration" reported by the RIE is much too small. It is taken [before the actual language runtime is even started](https://github.com/aws/aws-lambda-runtime-interface-emulator/blob/2057adac54dbd781b51431f775363ec021648c77/cmd/aws-lambda-rie/handlers.go#L98): ```go initStart, initEnd := InitHandler(sandbox, functionVersion, timeout, bs) ``` Instead, the end of the Init phase should be recorded when the [`sendInitRuntimeDoneLogEvent()`](https://github.com/aws/aws-lambda-runtime-interface-emulator/blob/2057adac54dbd781b51431f775363ec021648c77/lambda/rapid/handlers.go#L358) is posted: ```go defer func() { sendInitRuntimeDoneLogEvent(execCtx, sbInfoFromInit.SandboxType, runtimeDoneStatus) }() ```