IBM 3090 performance: A balanced system approach

The IBM 3090 system represents the highest level of system performance offered by IBM to date. To realize the full performance potential of this system, it is essential to maintain a balance among its various components. The major components of the system are the processor(s), storage, I/O, and the software that manages the system resources. Their performance attributes are discussed and their effect on system performance illustrated by laboratory benchmark measurements for the MVS and VM operating systems.