How DMA operation is performed? Consider a disk with 200 tracks and the queue has random requests from different processes in the order: 45, 48, 29, 17, 80, 150, 28 and 188. Find the seek time using FIFO, SSTF and SCAN. Assume the initial position of head as 100.
How DMA operation is performed? Consider a disk with 200 tracks and the queue has random requests from different processes in the order: 45, 48, 29, 17, 80, 150, 28 and 188. Find the seek time using FIFO, SSTF and SCAN. Assume the initial position of head as 100.[10]
Video solutionDMA Operation and Disk Scheduling: FIFO, SSTF, SCAN2:15
Speed
Checked against the model answer before publishing.
- Total tracks: 200 (numbered 0 to 199) - Request queue (in order): 45, 48, 29, 17, 80, 150, 28, 188 - Initial head position: 100 --- Direct Memory Access (DMA) is an I/O technique in which a dedicated hardware controller transfers data directly between an I/O device and main memory, freeing the ...