Memory and CPU usage by a process

Anyone worked on collecting data and generating rrd and graph for a particular process?

I am trying to collect it for all the java processes on one system, which is easy for solaris, and then generate rrd and create graph. With little perl scripts, as provided in rrdtool website, I can generate the rrds as well using the data but how do I tell hobbit server to do the graph?

I want to do it all in the server may be by modifying the ps' script on the client to show the RSS' column

Thanks

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