#CO DMA modes and % of time CPU stays idle.

Question

Consider  ​y μs is cycle time / transfer time (for memory) x μs is data transfer time / preparation time (for disk) then % of time CPU idle in CYCLE STEALING MODE is = y/x

and % of time CPU idle in Burst MODE is = (y)/(x+y)

May someone please explain how is this Cpu idle time is calculated in both cycle stealing time and burst mode

Comments

WHAT IS DOUBT IN THIS?

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formula be % time consumed = (CPU time consumed) / (total time consumed) * 100

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Thanks shrestha and gaurav it's understood mate! :)

Answer 1

Read the answer by bikram sir to this question :https://gateoverflow.in/140573/%25-time-of-cpu-blocked-in-dma