单选题When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）A The number pages over the limitB The pages to paging space per secondC The number of page operations per secondD The number of processes waiting for page out
单选题
When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）
A
The number pages over the limit
B
The pages to paging space per second
C
The number of page operations per second
D
The number of processes waiting for page out
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