单选题While a user is compiling a C program, "vmstat 120 10" is run to determine the cause of a performance problem. Using the vmstat output as shown in the exhibit, which of the following conclusions is most appropriate to draw?（）AThere is a file I/O bottl
题目
单选题
While a user is compiling a C program, "vmstat 120 10" is run to determine the cause of a performance problem. Using the vmstat output as shown in the exhibit, which of the following conclusions is most appropriate to draw?（）
A
There is a file I/O bottleneck.
B
There are too many open files.
C
There appears to be a buffer shortage.
D
There is a paging space I/O bottleneck.