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# ----------------------------------------------------------- |
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# i-scream graph generation script |
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# http://www.i-scream.org.uk |
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# http://www.i-scream.org |
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# |
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# Generates graphs from rrd databases for i-scream data. |
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# |
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#------------------------------------------------------------ |
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## TODO |
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# allow specification of lower/upper graph bounds |
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# -- then replace mem/swap/disk "total" line ;) |
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# fix mem/swap issues |
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# -- should be graphing "in use", not "free" |
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# possibly make more configurable? |
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# -- allow configurable periods of graphs |
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# -- comments, types, etc |
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if($rrd =~ /^(mem)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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push @data, "AREA:$1:free:free#CCCCFF:free memory"; |
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# we don't actually want to display free memory, |
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# although we need it to do inuse... |
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push @data, "NONE:$1:free:free#CCCCFF:free memory"; |
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push @data, "LINE2:$1:total:total#0000FF:total memory"; |
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# calculate inuse |
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push @rawdata, "CDEF:inuse=total,free,-"; |
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# and add it to the graph |
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push @rawdata, "AREA:inuse#CCCCFF:memory in use"; |
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push @rawdata, "--base=1024"; |
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&makegraph($machine, $1, "Memory Usage for $machine", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(swap)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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push @data, "AREA:$1:free:free#CCCCFF:free swap"; |
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# we don't actually want to display free swap, |
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# although we need it to do inuse... |
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push @data, "NONE:$1:free:free#CCCCFF:free swap"; |
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push @data, "LINE2:$1:total:total#0000FF:total swap"; |
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# calculate inuse |
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push @rawdata, "CDEF:inuse=total,free,-"; |
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# and add it to the graph |
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push @rawdata, "AREA:inuse#CCCCFF:swap in use"; |
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push @rawdata, "--base=1024"; |
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&makegraph($machine, $1, "Swap Usage for $machine", \@data, \@rawdata); |
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} |
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# (eg. kernow CPU usage) |
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# $dataref = a reference to an array containing information for the graph |
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# elements of format: "gtype:rrdname:dsname:name#colour:comment with spaces" |
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# (if gtype is "NONE" only a DEF of 'name' will be defined, no line will be plotted) |
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# $rawcmdref = a reference to an array containing raw rrd commands |
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# elements a single command each, no spaces |
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# |
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my(@rrdcmd); |
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foreach my $dataitem (@data) { |
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# dataitem should be: "gtype:rrdname:dsname:name#colour:comment with spaces" |
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# (if gtype is "NONE" only a DEF of 'name' will be defined, no line will be plotted) |
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if($dataitem =~ /^(\S+):(\S+):(\S+):(\S+)#(.{6}):(.*)$/) { |
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push @rrdcmd, "DEF:$4=$rrddir/$machine/$2.rrd:$3:MAX"; |
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push @rrdcmd, "$1:$4#$5:$6"; |
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push @rrdcmd, "DEF:$4=$rrddir/$machine/$2.rrd:$3:AVERAGE"; |
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if($1 ne "NONE") { |
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push @rrdcmd, "$1:$4#$5:$6"; |
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} |
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} |
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} |
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push @rrdcmd, "--title=$title"; |
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RRDs::graph ("$imgdir/$machine/$type-1m.png", "--start=-2678400", @rrdcmd); |
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my($err_1m) = RRDs::error; |
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print STDERR "Error generating 1m graph for $machine/$type: $err_1m\n" if $err_1m; |
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RRDs::graph ("$imgdir/$machine/$type-1y.png", "--start=-31536000", @rrdcmd); |
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my($err_1y) = RRDs::error; |
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print STDERR "Error generating 1y graph for $machine/$type: $err_1y\n" if $err_1y; |
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return; |
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} |
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