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？（）
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. The total CPU usage for this drive
B. The bandwidth utilization of the indicated drive
C. It can best be represented by the equation （%iowait - %ioidle）
D. It can best be represented by the equation （kilobytes read/kilobytes written） *100
A. tprof
B. iostat
C. vmstat
D. filemon
A. tprof
B. iostat
C. svmon
D. filemon
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. Using the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the I/O bottleneck？（）
A. The bottleneck is network I/O.
B. The bottleneck is local disk I/O.
C. The bottleneck is paging space I/O.
D. The bottleneck is to a remote filesystem.
A. no
B. netpmon
C. entstat
D. nfso
最新試題
Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）
Which of the following commands should be used to monitor the number of threads on the scheduler’s run queue for any given interval？（）
The system administrator notices that there is an I/O bottleneck on one of three disks in datavg volume group. This problem disk contains the JFS log， loglv00 and one filesystem， /mydatabase. There are no other logical volumes on this disk. Which of the following options would be the best solution？（）
Which tool is based on the AIX trace facility？（）
Which of the following performance tools will work with optimized code and also provides source statement profiling？（）
Page replacements algorithm steals file pages only when percent of RAM occupied by filepages（）
Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1， located on /dev/lv01， that is heavily fragmented？（）
After issuing the nfsstat -rs command， the null received column starts to grow. This indicates which of the following conditions？（）
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？（）
Which of the following commands will only provide a snapshot of average memory usage for a process？（）