CH 6: Tuning System Performance Flashcards

1
Q

ps a
ps u
ps aux

A

show me

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

list all tuned profiles

A

tuned-adm list

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

change server tuning profile to powersave

A

tuned-adm profile powersave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

view active tuned profile

A

tuned-adm active

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

2 ways to view information about CPUs

A

lscpu

cat /proc/cpuinfo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
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 &

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
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)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly