# ScalingPolicyMetric
<a name="API_ScalingPolicyMetric"></a>

The metric for a scaling policy.

## Contents
<a name="API_ScalingPolicyMetric_Contents"></a>

 ** InvocationsPerInstance **   <a name="sagemaker-Type-ScalingPolicyMetric-InvocationsPerInstance"></a>
The number of invocations sent to a model, normalized by `InstanceCount` in each ProductionVariant. `1/numberOfInstances` is sent as the value on each request, where `numberOfInstances` is the number of active instances for the ProductionVariant behind the endpoint at the time of the request.  
Type: Integer  
Required: No

 ** ModelLatency **   <a name="sagemaker-Type-ScalingPolicyMetric-ModelLatency"></a>
The interval of time taken by a model to respond as viewed from SageMaker. This interval includes the local communication times taken to send the request and to fetch the response from the container of a model and the time taken to complete the inference in the container.  
Type: Integer  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/sagemaker-2017-07-24/ScalingPolicyMetric) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/ScalingPolicyMetric) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/ScalingPolicyMetric)