单选题Using output from "vmstat 2 8," which of the following options is most appropriate to consider when determining if a system is experiencing memory thrashing?（）A cy != 1 B re != 0 C po/fr 1/6 D fr/po 1/6
单选题
Using output from "vmstat 2 8," which of the following options is most appropriate to consider when determining if a system is experiencing memory thrashing?（）
A
cy != 1
B
re != 0
C
po/fr > 1/6
D
fr/po > 1/6
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