Cites as a pitfall the utilization of a subset of the performance equation as a performance metric. To illustrate this, consider the following data for the execution of a program in different processors.

Another fallacy is to consider that the processor executing the largest number of instructions will need a larger CPU time. Considering that processor P1 is executing a sequence of 106 instructions and that the CPI of processors P1 and P2 do not change, determine the number of instructions that P2 can execute in the same time that P1 needs to execute 106 instructions.

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a. b. Processor P1 P2 P1 P2 Clock Rate 4 GHz 3 GHz 3 GHz 2.5 GHz CPI 0.9 0.75 1.1 1.0 No. Instr. 5.00E+06 1.00E+06 3.00E+06 0.50E+06