3 rrdgraph_examples - Examples for rrdtool graph
7 B<rrdtool graph /home/httpd/html/test.png --img-format PNG>
9 followed by any of the examples below
13 For your convenience some of the commands are explained here
14 by using detailed examples. They are not always cut-and-paste
15 ready because comments are intermixed with the examples.
19 =head2 Data with multiple resolutions
21 --end now --start end-120000s --width 400
22 DEF:ds0a=/home/rrdtool/data/router1.rrd:ds0:AVERAGE
23 DEF:ds0b=/home/rrdtool/data/router1.rrd:ds0:AVERAGE:step=1800
24 DEF:ds0c=/home/rrdtool/data/router1.rrd:ds0:AVERAGE:step=7200
25 LINE1:ds0a#0000FF:"default resolution\l"
26 LINE1:ds0b#00CCFF:"resolution 1800 seconds per interval\l"
27 LINE1:ds0c#FF00FF:"resolution 7200 seconds per interval\l"
29 =head2 Nicely formatted legend section
31 DEF:ds0=/home/rrdtool/data/router1.rrd:ds0:AVERAGE
32 DEF:ds1=/home/rrdtool/data/router1.rrd:ds1:AVERAGE
33 VDEF:ds0max=ds0,MAXIMUM
34 VDEF:ds0avg=ds0,AVERAGE
35 VDEF:ds0min=ds0,MINIMUM
36 VDEF:ds0pct=ds0,95,PERCENT
37 VDEF:ds1max=ds1,MAXIMUM
38 VDEF:ds1avg=ds1,AVERAGE
39 VDEF:ds1min=ds1,MINIMUM
40 VDEF:ds1pct=ds1,95,PERCENT
42 Note: consolidation occurs here.
47 Note: 10 spaces to move text to the right
51 Note: the column titles have to be as wide as the columns
57 COMMENT:"95th percentile\l"
58 AREA:ds0bits#00C000:"Inbound "
59 GPRINT:ds0max:"%6.2lf %Sbps"
60 GPRINT:ds0avg:"%6.2lf %Sbps"
61 GPRINT:ds0min:"%6.2lf %Sbps"
62 GPRINT:ds0pct:"%6.2lf %Sbps\l"
63 LINE1:ds1bits#0000FF:"Outbound"
64 GPRINT:ds1max:"%6.2lf %Sbps"
65 GPRINT:ds1avg:"%6.2lf %Sbps"
66 GPRINT:ds1min:"%6.2lf %Sbps"
67 GPRINT:ds1pct:"%6.2lf %Sbps\l"
69 =head2 Offsetting a line on the y-axis
71 Depending on your needs you can do this in two ways:
77 Offset the data, then graph this
79 DEF:mydata=my.rrd:ds:AVERAGE
81 Note: this will also influence any other command that uses "data"
83 CDEF:data=mydata,100,+
84 LINE1:data#FF0000:"Data with offset"
88 Graph the original data, with an offset
90 DEF:mydata=my.rrd:ds:AVERAGE
92 Note: no color in the first line so it is not visible
96 Note: the second line gets stacked on top of the first one
98 LINE1:data#FF0000:"Data with offset":STACK
104 Last four weeks: --start end-4w --end 00:00
105 January 2001: --start 20010101 --end start+31d
106 January 2001: --start 20010101 --end 20010201
107 Last hour: --start end-1h
108 Last 24 hours: <nothing at all>
109 Yesterday: --end 00:00
111 =head2 Viewing the current and previous week together
113 --end now --start end-1w
114 DEF:thisweek=router.rrd:ds0:AVERAGE
115 DEF:lastweek=router.rrd:ds0:AVERAGE:end=now-1w:start=end-1w
117 Shift the data forward by one week (604800 seconds)
119 SHIFT:lastweek:604800
120 [ more of the usual VDEF and CDEF stuff if you like ]
121 AREA:lastweek#0000FF:Last\ week
122 LINE1:thisweek#FF0000:This\ week
126 L<rrdgraph> gives an overview of how B<rrdtool graph> works.
127 L<rrdgraph_data> describes B<DEF>,B<CDEF> and B<VDEF> in detail.
128 L<rrdgraph_rpn> describes the B<RPN> language used in the B<xDEF> statements.
129 L<rrdgraph_graph> page describes all the graph and print functions.
131 Make sure to read L<rrdgraph_examples> for tipsE<amp>tricks.
135 Program by Tobias Oetiker E<lt>tobi@oetiker.chE<gt>
137 This manual page by Alex van den Bogaerdt E<lt>alex@ergens.op.het.netE<gt>