To examine the Exhibit， press the Exhibit button. While a developer 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 about the machine？（）
A. The machine has too many users.
B. The machine has an I/O bottleneck.
C. The machine has a CPU bottleneck.
D. The machine has a memory bottleneck.
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A. tprof
B. topas
C. filemon
D. vmstat
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.
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
A. The amount of time taken to service an I/O interrupt
B. The percentage of time CPU（s） are waiting for page ins
C. The percentage of time the CPU9（s） are waiting on network
D. The percentage of time the CPU（s） are waiting for outstanding disk I/O requests
最新試題
To examine the Exhibit， press the Exhibit button. While a user is compiling a C program， "vmstat 120 10" is run to determine the cause of a performance problem. Given the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the machine？（）
Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）
Which of the following performance tools will work with optimized code and also provides source statement profiling？（）
In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）
Which of the following options would best help to reduce packet fragmentation for a TCP application transferring large amounts of data between servers across a path of multiple networks？（）
Which of the following commands will only provide a snapshot of average memory usage for a process？（）
To examine the Exhibit， press the Exhibit button. Using the "ps -mo THREAD" output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）
Page replacements algorithm steals file pages only when percent of RAM occupied by filepages（）
When setting up schedules and enforcing scheduling of different types of workloads， which of the following are critical performance issues？（）
To examine the Exhibit， press the Exhibit button. Using the output of "lslv" as shown in the exhibit， and given that logical volume lv00 is only located on hdisk0， which of the following conclusions is most appropriate to draw？（）