System Characteristics
Typically < 100 transaction types per application
Transaction size has high variance. Typically,
- 0-30 disk accesses
- 10K - 1M instructions executed
- 2-20 messages
A large-scale example: airline reservations
- 150,000 active display devices
- plus indirect access via Internet travel agents
- thousands of disk drives
- 3000 transactions per second, peak