# Monitor the performance of a pre-warmed table using Amazon CloudWatch
Monitor pre-warming with CloudWatch

Amazon Keyspaces pre-warming doesn't introduce new CloudWatch metrics, but you can monitor the performance of pre-warmed tables using existing Amazon Keyspaces metrics:

SuccessfulRequestLatency  
Monitor this metric to verify that the pre-warmed table is handling requests with expected latency.

WriteThrottleEvents and ReadThrottleEvents  
These metrics should remain low for a properly pre-warmed table. If you see insufficient capacity errors despite pre-warming, you might need to adjust your warm-throughput values.

ConsumedReadCapacityUnits and ConsumedWriteCapacityUnits  
These metrics show the actual consumption of capacity, which can help validate if your pre-warming configuration is appropriate.

ProvisionedReadCapacityUnits and ProvisionedWriteCapacityUnits  
For provisioned tables, these metrics show the currently allocated capacity.

These metrics can be viewed in the CloudWatch console or queried using the CloudWatch API. For more information, see [Monitoring Amazon Keyspaces with Amazon CloudWatch](monitoring-cloudwatch.md).