S3 key/folder structure for performance

For S3 file transfer performance, the S3 objects prefix structure is the key for high performance.

Do you know how the folder structure on S3 is laid out? Is that using a simple hierarchical directory path (e.g. [s3://bucket/tiered/topic-1/parttion-1/logsetment-1.log](http://s3//bucket/tiered/topic-1/parttion-1/logsetment-1.log))?

This layout would bottleneck on reading/writing into topic-1/partition-1 since S3 partitioning is on the topic level path (tiered/topic-1), if we can add a random salt hash part into the path (e.g. s3://bucket/tiered/aabbg/topic-1) this would greatly improve the S3 transfer throughput.