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Read Performance Considerations

PDFRSS

With the launch of Amazon DynamoDB Accelerator (DAX), you can now get microsecond access to data that lives in Amazon DynamoDB. DAX is an in-memory cache in front of DynamoDB and has the identical API as DynamoDB.

Because reads can be served from the DAX layer for queries with a cache hit, and the table will only serve the reads when there is a cache miss, the provisioned read capacity units can be lowered for cost savings.

Tip: Based on the size of your tables and data access pattern, consider provisioning a single DAX cluster for multiple smaller tables or multiple DAX clusters for a single bigger table or a hybrid caching strategy that will work best for your application.