1 votes 1 votes %CPU Block=DMA Transfer Time /Total Transfer Time How is this formula coming? Samujjal Das asked Oct 29, 2016 Samujjal Das 244 views answer comment Share Follow See 1 comment See all 1 1 comment reply Pavan Kumar Munnam commented Oct 30, 2016 reply Follow Share actually there will be several over heads also for instantiating the DMA transfer like the over head to gain the access of the bus etc,.. and these also must be included.. and didnot get for what this formula is for 0 votes 0 votes Please log in or register to add a comment.
Best answer 1 votes 1 votes %cpu block = $\frac{DMA time}{DMA time +CPU time}$ * 100 When DMA is transferring data BUS is occupied by DMA @time So CPU is blocked @time. Rajesh Pradhan answered Oct 30, 2016 • selected Nov 10, 2016 by Rajesh Pradhan Rajesh Pradhan comment Share Follow See all 0 reply Please log in or register to add a comment.
