Reduce latency and cost in read-heavy applications using Amazon DynamoDB Accelerator

This article discusses how Amazon DynamoDB Accelerator (DAX) can help reduce latency and cost in read-heavy applications using DynamoDB. Key findings include:

• DAX is an in-memory cache that can reduce read latency for DynamoDB
• In test scenarios, DAX delivered significant performance improvements:
  • 19% reduction in single item retrieval latency
  • 15% reduction in list item retrieval latency
• DAX can dramatically reduce read capacity units (RCUs):
  • Reduced RCUs from 8,500 to just 22
  • Over 99% reduction in DynamoDB read costs
• Cost savings of 21-67% possible depending on capacity mode

The article recommends DAX for read-heavy applications serving large user bases, highlighting its ability to improve performance and reduce infrastructure costs.