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Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.
Correct answer is '0.82'. Can you explain this answer?
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Verified Answer
Consider a system employing an interrupt driven I/O for a articular de...
The device generates 8 × 1024 = 8192 bytes/sec
i.e. 1 second 8192 bytes
Given that each interrupt consumes 100.μs
Fraction of proce ssor time consumed in 
(for every byte)=0.82
(for every byte)=0.82Most Upvoted Answer
Consider a system employing an interrupt driven I/O for a articular de...
Calculation of Interrupt Overhead:
To determine the fraction of processor time consumed by the I/O device, we need to calculate the interrupt overhead for each byte transferred.
Step 1: Calculate the Time Taken for Each Byte:
The device transfers data at an average rate of 8 KB/s. Therefore, the time taken for each byte transferred can be calculated as follows:
Time taken for each byte = 1 / (8 KB/s) = 1 / (8 * 1024 B/s) = 1 / (8192 B/s) = 122.07 microseconds/byte
Step 2: Calculate the Interrupt Overhead:
The interrupt processing takes about 100 microseconds. Since the interrupt occurs for every byte transferred, the interrupt overhead for each byte can be calculated as follows:
Interrupt overhead for each byte = 100 microseconds/byte
Step 3: Calculate the Fraction of Processor Time Consumed:
To calculate the fraction of processor time consumed by the I/O device, we need to find the ratio of the interrupt overhead to the total time taken for each byte transferred.
Total time taken for each byte = Time taken for each byte + Interrupt overhead for each byte
= 122.07 microseconds/byte + 100 microseconds/byte
= 222.07 microseconds/byte
Fraction of processor time consumed by the I/O device = Interrupt overhead for each byte / Total time taken for each byte
= 100 microseconds/byte / 222.07 microseconds/byte
= 0.45
Therefore, the fraction of processor time consumed by this I/O device when it is interrupted for every byte is 0.45.
However, the given correct answer is 0.82. There might be a mistake in the given answer or in the calculations. Please double-check the calculations or provide further clarification if needed.
To determine the fraction of processor time consumed by the I/O device, we need to calculate the interrupt overhead for each byte transferred.
Step 1: Calculate the Time Taken for Each Byte:
The device transfers data at an average rate of 8 KB/s. Therefore, the time taken for each byte transferred can be calculated as follows:
Time taken for each byte = 1 / (8 KB/s) = 1 / (8 * 1024 B/s) = 1 / (8192 B/s) = 122.07 microseconds/byte
Step 2: Calculate the Interrupt Overhead:
The interrupt processing takes about 100 microseconds. Since the interrupt occurs for every byte transferred, the interrupt overhead for each byte can be calculated as follows:
Interrupt overhead for each byte = 100 microseconds/byte
Step 3: Calculate the Fraction of Processor Time Consumed:
To calculate the fraction of processor time consumed by the I/O device, we need to find the ratio of the interrupt overhead to the total time taken for each byte transferred.
Total time taken for each byte = Time taken for each byte + Interrupt overhead for each byte
= 122.07 microseconds/byte + 100 microseconds/byte
= 222.07 microseconds/byte
Fraction of processor time consumed by the I/O device = Interrupt overhead for each byte / Total time taken for each byte
= 100 microseconds/byte / 222.07 microseconds/byte
= 0.45
Therefore, the fraction of processor time consumed by this I/O device when it is interrupted for every byte is 0.45.
However, the given correct answer is 0.82. There might be a mistake in the given answer or in the calculations. Please double-check the calculations or provide further clarification if needed.
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Consider a system employing an interrupt driven I/O for a articular de...
0.82
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Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer?
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Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer?.
Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a system employing an interrupt driven I/O for a articular device that transfers data at an average of 8 KB/s on a continuous basis. Assume that interrupt processing takes about 100 micro seconds (i.e. jump to the interrupt service routine (ISR); execute it and return to the main program). Determine what fraction of processor time is consumed by this I/O device when it is interrupted for every byte.Correct answer is '0.82'. Can you explain this answer?.
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