what is trashingwhat? Explain the methods to avoid trashing? in Operating system
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Thrashing is a state in which the CPU performs 'productive' work less, and 'swapping' more. ... Thrashing occurs when there are too many pages in memory, and each page refers to another page. The real memory shortens in capacity to have all the pages in it, so it uses 'virtual memory'.
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As the degree of multiprogramming increases, CPU utilization also increases. 4) If the degree of multiprogramming is increased further, thrashing sets in and CPU utilization drops sharply. 5) So, at this point, to increase CPU utilization and to stop thrashing, we must decrease the degree of multiprogramming.
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