In the DynamoDB console, you can choose the Metrics tab to view some key CloudWatch metrics for the selected table.
You can choose any graph to explore a particular metric in detail.
The Metrics page provides an at-a-glance summary of table performance. If you want to view other metrics associated with table, choose View all CloudWatch metrics to go to the CloudWatch console.
For more information about CloudWatch metrics for DynamoDB, see Monitoring DynamoDB with CloudWatch.