The folders/subfolders under the S3 bucketname that the object is contained.
Explain why S3 has extremely low latency.
1. You can get the first byte out of S3 within 100-200 miliseconds.
2. You can also achieve a high number of requests: 3,500 PUT/COPY/POST/DELETE and 5,500 GET/HEAD requests per second per prefix.
3. The more prefixes we have the better performance you can achieve. Ex. using 2 prefixes for reads, you can achieve 11,000 requests per second.
