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TABLE 11.3 The Weighted Average Running Times for System A Using a Revised Execution Mix Program Execution Time Execution Frequency 50 25% 5% 200 250 10% 400 5% 050 5,000 55% Weighted Average 2,817.5 seconds The Geometric Mean TABLE 11.2 The Execution Mix for Five Programs on Two Systems and the Weighted Average of the Running Times Progra Execution Frequency System A Execution System C Execution Time Time 949 50% 50 500 30% боо 200 10% 250 500 У 5% 400 8o 5% 5,000 3:500 Weighted Average 380 seconds 695 seconds (50 x 0.5) + (200 x 0.3) + (250 x 0.1) + (400 x 0.05) + (5,000 x 0.05) = 380.

TABLE 11.3 The Weighted Average Running Times for System A Using a Revised Execution Mix Program Execution Time Execution Frequency 50 25% 5% 200 250 10% 400 5% 050 5,000 55% Weighted Average 2,817.5 seconds The Geometric Mean TABLE 11.2 The Execution Mix for Five Programs on Two Systems and the Weighted Average of the Running Times Progra Execution Frequency System A Execution System C Execution Time Time 949 50% 50 500 30% боо 200 10% 250 500 У 5% 400 8o 5% 5,000 3:500 Weighted Average 380 seconds 695 seconds (50 x 0.5) + (200 x 0.3) + (250 x 0.1) + (400 x 0.05) + (5,000 x 0.05) = 380.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Table 11.2 shows an execution mix and runtimes for two computers, System A and System C. In this example, System C is 83% faster than System A. Table 11.3 shows runtimes for System A with a different execution mix. Using the execution mix in Table 11.3, calculate the percentage by which System C would be faster than System A. Using the original statistics from Table 11.2, by how much has the performance of System A degraded under the new execution mix?

TABLE 11.3 The Weighted Average Running Times for System A Using a Revised Execution Mix Program Execution Time Execution Frequency 50 25% 5% 200 250 10% 400 5% 050 5,000 55% Weighted Average 2,817.5 seconds The Geometric Mean
Transcribed Image Text:TABLE 11.3 The Weighted Average Running Times for System A Using a Revised Execution Mix Program Execution Time Execution Frequency 50 25% 5% 200 250 10% 400 5% 050 5,000 55% Weighted Average 2,817.5 seconds The Geometric Mean
TABLE 11.2 The Execution Mix for Five Programs on Two Systems and the Weighted Average of the Running Times Progra Execution Frequency System A Execution System C Execution Time Time 949 50% 50 500 30% боо 200 10% 250 500 У 5% 400 8o 5% 5,000 3:500 Weighted Average 380 seconds 695 seconds (50 x 0.5) + (200 x 0.3) + (250 x 0.1) + (400 x 0.05) + (5,000 x 0.05) = 380.
Transcribed Image Text:TABLE 11.2 The Execution Mix for Five Programs on Two Systems and the Weighted Average of the Running Times Progra Execution Frequency System A Execution System C Execution Time Time 949 50% 50 500 30% боо 200 10% 250 500 У 5% 400 8o 5% 5,000 3:500 Weighted Average 380 seconds 695 seconds (50 x 0.5) + (200 x 0.3) + (250 x 0.1) + (400 x 0.05) + (5,000 x 0.05) = 380.
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