How can I scale my request rate to S3, to improve request rate performance?

Resolution

Amazon S3 automatically scales by dynamically optimizing performance in response to sustained high request rates. Your application can achieve 3,500 PUT/COPY/POST/DELETE or 5,500 GET/HEAD requests per second per prefix in a bucket. There are no limits to the number of prefixes in a bucket. You can increase your read or write performance by using parallelization. If Amazon S3 is optimizing for a new request rate, you receive a temporary HTTP 503 request response until the optimization completes. Because Amazon S3 optimizes its prefixes for request rates, unique key naming patterns are no longer a best practice.

For more information about Amazon S3 performance optimization, see Performance guidelines for Amazon S3 and Performance design patterns for Amazon S3.