单项选择题
Which of the following commands displays the number of system calls per second that are being executed？（）
A. sar
B. pstat
C. iostat
D. filemon
点击查看答案
相关考题
-
单项选择题
Whichofthefollowingcommandsshouldbeusedtoshowhowmuchdataisreadfromorwrittentoaparticularlogicalvolume，giventhereareseveralotherlogicalvolumesonthesamedisk？（）
A. sar
B. lslv
C. iostat
D. filemon -
单项选择题
WhichofthefollowingcommandsshouldbeusedtomonitordiskutilizationduringthetimeasystemisexperiencingadiskI/Operformanceproblem？（）
A. istat
B. topas
C. vmstat
D. filemon -
单项选择题
Afterrunningthevmstatcommand，whichofthefollowingwouldmostlikelycausethevalueintheblockedcolumntobeunusuallyhigh？（）
A. Kernel thread
B. Too many users
C. Memory shortage
D. Network contention
