From: Oscar Goosens (ozgo@mail.com)
Date: Fri Aug 29 2003 - 08:06:01 EDT
Hello,
I am building a set of scripts that will collect and display performance data from our Sun servers.
One of the counters I'll collect is produced by sar,
like this: "/usr/bin/sar < /usr/lib/sa/sadc 1 1"
This command would run every 5,10 or 20 minutes or so, output is stored in a database.
Question is this:
Instead of just taking one sample every time this command runs, would it be more meaningful to
take the average over let's say half a minute or a minute, as in
"/usr/bin/sar < /usr/lib/sa/sadc 6 10"
I'll build a history for at least a year, which will be used to produce trends by performing
simple linear regressions. Is it possible to say which method of collecting data would produce
more reliable results?
Regards Oscar
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