Custom runtime for AWS Lambda offering low overhead with cold starts between 9-15ms and sub-1ms warm invocations, supporting event handling with optional initialization and context.
A low overhead Kotlin custom runtime for AWS Lambda with a cold start between 9 and 15ms (for Kotlin Native):
REPORT Duration: 0.58 ms Billed Duration: 12 ms Memory Size: 128 MB Max Memory Used: 13 MB Init Duration: 10.48 ms
And a warm invocation <1ms:
REPORT Duration: 0.53 ms Billed Duration: 1 ms Memory Size: 128 MB Max Memory Used: 16 MB
The runtime supports Kotlin/Native on both x86_64 and ARM64 architectures, and also publishes a JVM target that can be compiled to a Lambda bootstrap with GraalVM Native Image.
import com.asyncant.aws.lambda.runtime.runLambda
fun main() = runLambda { event ->
println("Received: $event")
"Hello world!"
}
Or with initialization code and context:
import com.asyncant.aws.lambda.runtime.runLambda
fun main() {
/* << Initialization code >> */
runLambda { event, context ->
/* << Handle event >> */
}
}
The library can be found on Maven Central here.
implementation("com.asyncant.aws.lambda:runtime:0.9.7")
<dependency>
<groupId>com.asyncant.aws.lambda</groupId>
<artifactId>runtime</artifactId>
<version>0.9.7</version>
</dependency>
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