No prophets here: Supplying Performance Hints
Need additional information for optimum performance
- Different from Objectivity clustering hints
- Database clustering
- Processing mode (sequential/random)
- Desired service levels
Information is Objectivity independent
- Need a mechanism to tunnel opaque information
Client supplies hints via oofs_set_info() call
- Information relayed to AMS in a transparent way
- AMS relays information to underlying file system via oofs()