Packages beginning with letter "R".

rrdtool Round Robin Database Tool to store and display time-series data
rrdtool-devel RRDtool libraries and header files
rrdtool-doc RRDtool documentation
rrdtool-lua Lua RRDtool bindings
rrdtool-perl Perl RRDtool bindings
rrdtool-php PHP RRDtool bindings
rrdtool-python Python RRDtool bindings
rrdtool-tcl Tcl RRDtool bindings