單項(xiàng)選擇題

Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound？（）

A. % idle
B. % sys
C. % user
D. % iowait

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單項(xiàng)選擇題

Which of the following tools should be used to report in-depth information about file fragments？（）

A. defragfs
B. istat
C. filemon
D. fileplace

單項(xiàng)選擇題

Which of the following performance tools can be used to determine if a system is thrashing？（）

A. svmon and tprof
B. vmtune and schedtune
C. ps and schedtune
D. vmstat and topas