COMPUTER SOFTWARE
OPERATING SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the best description of disk thrashing?
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The read-write head on a disk moving more than it needs to as a result of disk fragmentation
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Spending more time transferring instructions than executing them
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Sending more data from the RAM to the disk than the controller can cope with, therefore requiring buffering
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Backing up data to more than one disk at a time using RAID strategies
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Explanation:
Detailed explanation-1: -Thrashing in os is a phenomenon that occurs in computer systems when the system spends an excessive amount of time on page swapping rather than executing useful work. It is caused by a high level of page faults, which happens when the system needs to retrieve a page from the disk because it is not present in memory.
Detailed explanation-2: -In computer science, thrashing occurs when a computer’s virtual memory resources are overused, leading to a constant state of paging and page faults, inhibiting most application-level processing. This causes the performance of the computer to degrade or collapse.
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