1 #! @PERL@
3 #makes things work when run without install
4 use lib qw( @prefix@/lib/perl );
6 use RRDs;
8 my $start=time;
9 my $rrd="randome.rrd";
10 my $name = $0;
11 $name =~ s/.*\///g;
12 $name =~ s/\.pl.*//g;
14 RRDs::create ($rrd, "--start",$start-1, "--step",300,
15 "DS:a:GAUGE:600:U:U",
16 "DS:b:GAUGE:600:U:U",
17 "RRA:AVERAGE:0.5:1:300",
18 "RRA:MIN:0.5:12:300",
19 "RRA:MAX:0.5:12:300",
20 );
22 my $ERROR = RRDs::error;
23 die "$0: unable to create `$rrd': $ERROR\n" if $ERROR;
25 # dropt some data into the rrd
26 my $t;
27 for ($t=$start; $t<$start+300*300; $t+=300){
28 RRDs::update $rrd, "$t:".(sin($t/3000)*50+50).":".(sin($t/2500)*50+50);
29 if ($ERROR = RRDs::error) {
30 die "$0: unable to update `$rrd': $ERROR\n";
31 }
32 }
34 my $c1="f57912a0";
35 my $c2="2a79e9a0";
36 my $w=300;
37 my $h=140;
39 RRDs::graph "$name-L.png",
40 "--title", "2 LINES",
41 "--start", "now",
42 "--end", "start+15h",
43 "--lower-limit=0",
44 "--interlace",
45 "--imgformat","PNG",
46 "--width=$w",
47 "--height=$h",
48 "DEF:a=$rrd:a:AVERAGE",
49 "DEF:b=$rrd:b:AVERAGE",
50 "LINE1:a#$c1:Value A",
51 "LINE3:b#$c2:Value B",
52 ;
54 RRDs::graph "$name-A.png",
55 "--title", "LINE and AREA",
56 "--start", "now",
57 "--end", "start+15h",
58 "--lower-limit=0",
59 "--interlace",
60 "--imgformat","PNG",
61 "--width=$w",
62 "--height=$h",
63 "DEF:a=$rrd:a:AVERAGE",
64 "DEF:b=$rrd:b:AVERAGE",
65 "AREA:a#$c1:Value A",
66 "LINE2:b#$c2:Value B",
67 ;
69 RRDs::graph "$name-S.png",
70 "--title", "STACKED AREAS",
71 "--start", "now",
72 "--end", "start+15h",
73 "--lower-limit=0",
74 "--interlace",
75 "--imgformat","PNG",
76 "--width=$w",
77 "--height=$h",
78 "DEF:a=$rrd:a:AVERAGE",
79 "DEF:b=$rrd:b:AVERAGE",
80 "AREA:a#$c1:Value A",
81 "STACK:b#$c2:Value B",
82 ;
85 RRDs::graph "$name-M.png",
86 "--title", "RPN Magic",
87 "--start", "now",
88 "--end", "start+15h",
89 "--lower-limit=0",
90 "--interlace",
91 "--imgformat","PNG",
92 "--width=$w",
93 "--height=$h",
94 "DEF:a=$rrd:a:AVERAGE",
95 "DEF:b=$rrd:b:AVERAGE",
96 "CDEF:alpha=TIME,3600,%,1800,LT,a,UNKN,IF",
97 "CDEF:beta=TIME,3600,%,1800,GE,b,UNKN,IF",
98 "AREA:alpha#$c1:Value A",
99 "LINE1:a#$c1",
100 "AREA:beta#$c2:Value B",
101 "LINE1:b#$c2",
102 ;
104 RRDs::graph "$name-sample.png",
105 "--title", "Sample",
106 "--start", "now",
107 "--end", "start+15h",
108 "--lower-limit=0",
109 "--interlace",
110 "--imgformat","PNG",
111 "--width=600",
112 "--height=50",
113 "DEF:a=$rrd:a:AVERAGE",
114 "DEF:b=$rrd:a:MAX",
115 "AREA:a#00ff00:Incoming",
116 "LINE1:b#ff0000:Max Incoming",
117 ;
119 if ($ERROR = RRDs::error) {
120 die "ERROR: $ERROR\n";
121 };
123 print "This script has created $name.png in the current directory\n";
124 print "This demonstrates the use of the TIME and % RPN operators\n";