CH 6: Tuning System Performance Flashcards by Aaron McDivitt

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Q

ps a
ps u
ps aux

A

show me

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Q

list all tuned profiles

A

tuned-adm list

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Q

change server tuning profile to powersave

A

tuned-adm profile powersave

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Q

view active tuned profile

A

tuned-adm active

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Q

2 ways to view information about CPUs

A

lscpu

cat /proc/cpuinfo

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Q

how to start a process with a nice value of 10

A

nice -n 10

in the book we did:
nice -n 10 sha1sum /dev/zero &

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Q

Show all sha1sum processes with ps to show PID, % of CPU, nice value, and executable name (command)

A

ps -o pid,pcpu,nice,comm $(pgrep sha1sum)

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