Frive at time t= 0 s 10, 20, 30 units ends first 10% of J and rest doing

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider a preemptive SRTF scheduling
technique followed by three processes P1, P2,
P3. All of these 3 processes arrive at timet = 0
and their total execution time is 10, 20, 30 units
respectively. Each process spends first 10% of
execution doing I/O, 70% CPU and rest doing
1/0 operation.
What will be the CPU idle % time to execute all
processes? (Assume a uniprocessor and all I/O
operations can be overlapped)
Transcribed Image Text:Consider a preemptive SRTF scheduling technique followed by three processes P1, P2, P3. All of these 3 processes arrive at timet = 0 and their total execution time is 10, 20, 30 units respectively. Each process spends first 10% of execution doing I/O, 70% CPU and rest doing 1/0 operation. What will be the CPU idle % time to execute all processes? (Assume a uniprocessor and all I/O operations can be overlapped)
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