The two tools are great with plugins and many available out of the box metrics.
I was wondering if there is a way to get output of munin into dstat or a similar tool (real time output vs munin's periodical graph).
I'd rather use munin plugins for plotting rather than passing munin output to an external application. Set short period (ex. 60 sec.) by setting appropriate
which plots the load average. For more complicated ones, look here (http://munin-monitoring.org/wiki/HowToWritePlugins). If you want to plot multigraphs, read this(http://munin-monitoring.org/wiki/MultigraphSampleOutput).