Which three statements correctly describe the features of the I/O calibration process?()
A、A. Only one I/O calibration process can run at a time.
B、B. It automates the resource allocation for the Automated Maintenance Tasks.
C、C. It improves the performance of the performance-critical sessions while running.
D、D. It can be used to estimate the maximum number of I/Os and maximum latency time for the system.
E、E. The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.