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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
参考答案
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单选题In an iostat report， which of the following options best describes the value of % tm_act？（）A
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Running iostat without any arguments/parameters is sufficient for resolving I/O bottlenecks
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单选题Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?（）A
20% B
40% C
60% D
80%
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% idleB
% sysC
% userD
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chdevC
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