单项选择题

The nice value is 60 in the ps listing. Which command is used to change this to a value of 20？（）

A. renice -n -20 {PID}
B. renice -n 20 {PID}
C. renice -n -40 {PID}
D. renice -n 40 {PID}

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热门试题

单项选择题

Thenfsstat-ccommandshowszerobadxid，butretransandtimeoutsaresizeable，whatisthemostprobablecauseoftheproblem？（）

A. Too many nfsd’s running
B. Client and server with different buffer sizes
C. Bridges， routers or gateways are receiving too many fragmentated packets
D. Too few nfsd’s running

单项选择题

Asystemhasusersdoinginteractiveworkwhilebackgroundjobsarerunning.Interactiveusersarerequestingthatsystemresponsetimebeimprovedforforegroundprocesses.Whichtuningparametersshouldbechangedtoaccomplishthis？（）

A. schedtune -h
B. schedtune -r
C. vmtune -f
D. schedtune -w