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monitoring cpu and memory of the unix box

 
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# 1  
Old 07-22-2008
monitoring cpu and memory of the unix box
Hi all,

Unix has the TOP and SAR command to monitor machine's performance. Can it be used in a script to alert if the cpu utilization is more than 80 or memory used is more than 90.

Is SAR preferable than TOP?

Please advise.
# 2  
Old 07-22-2008
vmstat will return cpu info as well as memory usage.
# 3  
Old 07-22-2008
Thanks Ikon but I need it in percent. Please advise.
# 4  
Old 07-22-2008
Its in percent for the cpu, for memory you will have to calculate your total memory and divide to get percent. I use vmstat to build graphs Perl-GD-Graphs to send daily stats.

procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 54600 4840 87476 44876 0 0 1 3 1 1 0 0 97 3

That is showing id(idle) at 97%
 
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