单选题Which of the following statements is TRUE concerning the po column of the vmstat command？（）AThe sys is high when po is high.BThe po represents the number of page steals.CThe low values usually indicate insufficient paging space.DThe low values usually
题目
单选题
Which of the following statements is TRUE concerning the po column of the vmstat command？（）
A
The sys is high when po is high.
B
The po represents the number of page steals.
C
The low values usually indicate insufficient paging space.
D
The low values usually indicate sufficient memory for the load.