单选题A system administrator ran the iostat command because of system performance problems. The following iostat output is provided： Based on the output， which of the following is insufficient？（）ACPUBMemoryCPaging spaceDDisk capacityX
题目
单选题
A system administrator ran the iostat command because of system performance problems. The following iostat output is provided： Based on the output， which of the following is insufficient？（）
A
CPU
B
Memory
C
Paging space
D
Disk capacityX