A. tprof
B. iostat
C. svmon
D. filemon
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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
A. chdev
B. cfgmgr
C. vmtune
D. schedtune
A. ping and arp
B. lsattr and ifconfig
C. netstat and iostat
D. iptrace and tcpdump
A. It is a pseudo filesystem that maps processes and kernel data structures to corresponding files.
B. It is a JFS mounted filesystem that provides an exact representation of what is happening to a proces at a single and discrete point of time.
C. It is a JFS mounted filesystem that maps processes and read-only files related to these processes.
D. It is a pseudo filesystem that contains data that represents the state of the parent processes （but not their threads） in a system.
最新試題
When monitoring a system using vmstat with an interval， which of the following conclusions should be drawn about the metrics under page pi and page po？（）
Which of the following commands is run to adjust the number of free paging-space pages at which AIX begins killing processes？（）
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？（）
Which tool is based on the AIX trace facility？（）
Which of the following commands will only provide a snapshot of average memory usage for a process？（）
Which of the following commands should be used to tune parameters of devices that are displayed with lsattr？（）
Which of the following performance tools will work with optimized code and also provides source statement profiling？（）
Which of the following tools should be used to display the location of unused physical partitions on a disk drive？（）
Which of the following commands should be used to monitor the number of threads on the scheduler’s run queue for any given interval？（）