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There are several options: use a script which writes needed data on a regular basis to a logfile. You could use cron to write the output of ps (and other commands) every x minutes into a logfile. Better it would be to use a specialized program, which does this for you. atop is very good at this, at it takes care of logfile retention. atop is available ...


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This kind of graphical analysis is usually done with tools that are designed to do so. I use munin, but there are several other tools that do similar tasks. They gather the data into a data store from which graphs can be readily generated. However, there are tools that can extract the data into formats that can be graphed. I would use awk, perl, or python ...


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Glance can do metrics per file system. Given this Advisor syntax file: headersprinted=headersprinted if headersprinted != 1 then { print "DATE TIME FILESYSTEM FIR LIR LRBR LRR LWBR LWR PIR PRBR PRR PWBR PWR" headersprinted = 1 } filesystem loop { print GBL_STATDATE|12," ", ...



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