Question

What is the CPU time if the number of instructions executed by the program is 500,cycles per instructions is 5 and the clock cycle time is 200ps?

Answer 1

Answer:

The answer is 5,00,000 Seconds.

Step-by-step explanation:

The formula for computing the CPU time is provided below.

CPU time = Number of instructions x Cycles per instruction x Clock cycle time

Now substitute "500" for number of instructions and "5" for cycles per instructions.

CPU time = 500 x 5 x 200

                = 5,00,000 Seconds

Thus the CPU time is 5,00,000 seconds

Answer 2

CPU time = 0.5 μs if 500 instruction of 5 cycles each with clock cycle time 200 ps executed

Step-by-step explanation:

number of instructions executed by the program is 500

cycles per instructions is 5

clock cycle time is 200ps = 200 * 10⁻¹² s

CPU time = Number of instruction * cycle per instruction & Clock cycle time

= 500 * 5 * 200  * 10⁻¹²

= 500000 * 10⁻¹²

= 0.5 * 10⁶ * 10⁻¹²

= 0.5 *  10⁻⁶

= 0.5 μ s

CPU time = 0.5 μ s