單項(xiàng)選擇題A system administrator increases the mbuf pool allocation, then runs vmstat. It is noticed that the paging rate has not decreased. What is the most effective option to maintain the mbuf pool and decrease paging?()

A. Increase the number of CPUs.
B. Increase the physical memory.
C. Set the PSALLOC environment variable to ’late’.
D. Set the PSALLOC environment variable to ’early’.


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4.單項(xiàng)選擇題If percentage of RAM occupied by file pages falls below minperm, page replacement algorithm steals pages from ()

A. file pages only.
B. computational pages only.
C. either file or computational pages.
D. working segment only.

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