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单选题
While monitoring a system using vmstat， which of the following options most likely indicates that the system is CPU bound？（）
A
r is greater than 40
B
id is greater than 50
C
sum of id and wa equals 50
D
sum of us and sy equals 100
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考题
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考题
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考题
单选题Performance monitoring of a poorly performing system indicates a high level of CPU usage. Which tool can be used to help identify which processes are using excessive CPU resources？（）A
sarB
topasC
iostatD
vmstat
考题
单选题Using the schedtune output， memory is considered over-committed if：（）A
more than one process is spinning.B
more than 4 processes become active.C
the system schedules more than 16 processes.D
the pageouts divided by page steals is greater than 1/h.
考题
单选题While monitoring a system that is CPU bound， which of the following output is most likely to occur？（）A
AB
BC
CD
D
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