单项选择题
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?（）
A. There is a file I/O bottleneck.
B. There are too many open files.
C. There appears to be a buffer shortage.
D. There is a paging space I/O bottleneck.
相关考题
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单项选择题
Whenplanningtoaccesstheon-linedocumentationfromaremoteclient,whichofthefollowingproceduresshouldbeperformedontheserver?（）
A.Install and configure the HTTPServer.
B.Add the name(s) of the client(s) to the httplite.conf file.
C.Add the names of any clients expecting to access the documentation to the /etc/hosts file.
D.No action is required. -
单项选择题
Whichofthefollowingproceduresshouldbeperformedtominimizepossibleproblemsforacustomerwhenupdatingsoftware?（）
A.Apply the updates without committing.
B.Commit the new updates to be certain there is no change after the next reboot.
C.Update one fileset at a time and test to ensure that it works before updating the next fileset.
D.No action is necessary since the software can always be uninstalled and re-installed. -
单项选择题
Whereisthershloglocated?（）
A. /var/spool
B. /var/perf
C. /var
D. /var/adm
