Question
In terms of processor performance, which factor has the
greatest impact on reducing instruction execution time for computationally heavy applications?Solution
Improved Instruction Pipelining has the most significant impact on reducing instruction execution time, especially in computationally heavy applications. Pipelining allows multiple instructions to overlap in execution, leading to increased throughput and reduced instruction latency. By dividing the instruction execution process into multiple stages, a well-optimized pipeline can keep the CPU busy by executing multiple instructions simultaneously, rather than waiting for one instruction to complete before starting another. This leads to more efficient use of processor resources and significantly speeds up computation. Why Other Options are Incorrect: A) Increased Cache Size: Larger cache reduces memory access time but does not directly address the instruction execution time as effectively as pipelining. B) Higher Clock Speed: Higher clock speeds improve performance but can be limited by factors like power consumption and heat dissipation. D) Hyper-Threading Support: Hyper-Threading improves parallelism but does not reduce individual instruction execution time as much as pipelining does. E) Increased Number of Processor Cores: More cores enhance parallel processing but do not affect the speed of executing single instructions.
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