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1.15 [15/10] Assume that we make an enhancement to a computer that improves some mode of execution by a factor of 10, Enhanced mode is

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1.15 [15/10] Assume that we make an enhancement to a computer that improves some mode of execution by a factor of 10, Enhanced mode is used 50% of the time, measured as a percentage of the execution time when the enhanced mode is in use. Recall that Amdahl's law depends on the fraction of the original unenhanced execution time that could make use of enhanced mode. Thus, we cannot directly use this 50% measurement to compute speedup with Amdahl's law a. 1519 What is the speedup we have obtained from fast mode? b. [10] What percentage of the original execution time has been con- verted to fast mode? 1.15 [15/10] Assume that we make an enhancement to a computer that improves some mode of execution by a factor of 10, Enhanced mode is used 50% of the time, measured as a percentage of the execution time when the enhanced mode is in use. Recall that Amdahl's law depends on the fraction of the original unenhanced execution time that could make use of enhanced mode. Thus, we cannot directly use this 50% measurement to compute speedup with Amdahl's law a. 1519 What is the speedup we have obtained from fast mode? b. [10] What percentage of the original execution time has been con- verted to fast mode

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