March 3, 2012

The overall data transmission rate with disk drive latency 7 ms, and a burst bandwidth of 2 MB per second

The overall data transmission rate with disk drive latency 7 ms, and a burst bandwidth of 2 MB per second Query: A 4 K byte block of data is read from a disk drive. What is the overall data transmission rate if the disk drive has a latency of 7 ms, and a burst bandwidth […]

The fraction of CPU time handling the data transfer with and without DMA

The fraction of CPU time handling the data transfer with and without DMA Query: An I/O device transfers data at a rate of 5MB/s over a 100MB/s bus. The data is transferred in 2KB blocks. If the processor operates at 500MHz, and it takes a total of 5000 cycles to handle each DMA request, find […]