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Oracle Tips by Burleson Consulting
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The UNIX watch command
One common method for watching UNIX server load is to monitor the
load average for the server. The load average is an arbitrary number
that shows overall resource consumption of the server. Most load
average displays have three values for the load average. The load
average display shows the load averages for the past minute, the
past 5 minutes, and the past 10 minutes. A low load average is
ideal, and the load average should stay below zero. Whenever the
value exceeds “1” there may be a CPU overload problem.
root> w
5:54pm up 2 days, 22:45, 29 users, load average: 0.08, 0.14, 0.22
User tty login@ idle JCPU PCPU what
root ttyp1 7:11pm 25:47 tee -a /u01/home/crup
triha ttyp2 4:48pm 20 3 3 runmenu50 pamenu
lpayne ttyp3 5:29pm 24 runmenu50 pamenu
burleson ttyp5 5:50pm -sh
tteply ttyp6 5:05pm 10 1 1 runmenu50 pamenu
kjoslin ttyp7 1:29pm 30 38 38 runmenu50 pamenu
jperry ttyp8 6:48am 1 51 51 runmenu50 pamenu
kharstad ttype 3:38pm 2:16 -sh
cmconway ttyqc 11:53am 17 5 5 runmenu50 pamenu
jhahn ttyr7 1:43pm 10 2 2 runmenu50 pamenu
tbailey ttyrb 12:12pm 1:38 4 4 runmenu50 pamenu
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