rrdgraph_examples

Langue: en

Version: 2007-05-02 (openSuse - 09/10/07)

Section: 1 (Commandes utilisateur)

NAME

rrdgraph_examples - Examples for rrdtool graph

SYNOPSIS

rrdtool graph /home/httpd/html/test.png --img-format PNG

followed by any of the examples below

DESCRIPTION

For your convenience some of the commands are explained here by using detailed examples. They are not always cut-and-paste ready because comments are intermixed with the examples.

EXAMPLES

Data with multiple resolutions


    --end now --start end-120000s --width 400

    DEF:ds0a=/home/rrdtool/data/router1.rrd:ds0:AVERAGE

    DEF:ds0b=/home/rrdtool/data/router1.rrd:ds0:AVERAGE:step=1800

    DEF:ds0c=/home/rrdtool/data/router1.rrd:ds0:AVERAGE:step=7200

    LINE1:ds0a#0000FF:"default resolution\l"

    LINE1:ds0b#00CCFF:"resolution 1800 seconds per interval\l"

    LINE1:ds0c#FF00FF:"resolution 7200 seconds per interval\l"



Nicely formatted legend section


    DEF:ds0=/home/rrdtool/data/router1.rrd:ds0:AVERAGE

    DEF:ds1=/home/rrdtool/data/router1.rrd:ds1:AVERAGE

    VDEF:ds0max=ds0,MAXIMUM

    VDEF:ds0avg=ds0,AVERAGE

    VDEF:ds0min=ds0,MINIMUM

    VDEF:ds0pct=ds0,95,PERCENT

    VDEF:ds1max=ds1,MAXIMUM

    VDEF:ds1avg=ds1,AVERAGE

    VDEF:ds1min=ds1,MINIMUM

    VDEF:ds1pct=ds1,95,PERCENT



Note: consolidation occurs here.


    CDEF:ds0bits=ds0,8,*

    CDEF:ds1bits=ds1,8,*



Note: 10 spaces to move text to the right


    COMMENT:"          "



Note: the column titles have to be as wide as the columns


    COMMENT:"Maximum    "

    COMMENT:"Average    "

    COMMENT:"Minimum    "




    COMMENT:"95th percentile\l"

    AREA:ds0bits#00C000:"Inbound "

    GPRINT:ds0max:"%6.2lf %Sbps"

    GPRINT:ds0avg:"%6.2lf %Sbps"

    GPRINT:ds0min:"%6.2lf %Sbps"

    GPRINT:ds0pct:"%6.2lf %Sbps\l"

    LINE1:ds1bits#0000FF:"Outbound"

    GPRINT:ds1max:"%6.2lf %Sbps"

    GPRINT:ds1avg:"%6.2lf %Sbps"

    GPRINT:ds1min:"%6.2lf %Sbps"

    GPRINT:ds1pct:"%6.2lf %Sbps\l"



Offsetting a line on the y-axis

Depending on your needs you can do this in two ways:
*
Offset the data, then graph this

    DEF:mydata=my.rrd:ds:AVERAGE



Note: this will also influence any other command that uses ``data''


    CDEF:data=mydata,100,+

    LINE1:data#FF0000:"Data with offset"



*
Graph the original data, with an offset

    DEF:mydata=my.rrd:ds:AVERAGE



Note: no color in the first line so it is not visible


    LINE1:100



Note: the second line gets stacked on top of the first one


    LINE1:data#FF0000:"Data with offset":STACK



Time ranges


    Last four weeks: --start end-4w --end 00:00

    January 2001:    --start 20010101 --end start+31d

    January 2001:    --start 20010101 --end 20010201

    Last hour:       --start end-1h

    Last 24 hours:   <nothing at all>

    Yesterday:       --end 00:00



Viewing the current and previous week together


    --end now --start end-1w

    DEF:thisweek=router.rrd:ds0:AVERAGE

    DEF:lastweek=router.rrd:ds0:AVERAGE:end=now-1w:start=end-1w



Shift the data forward by one week (604800 seconds)


    SHIFT:lastweek:604800

    [ more of the usual VDEF and CDEF stuff if you like ]

    AREA:lastweek#0000FF:Last\ week

    LINE1:thisweek#FF0000:This\ week



SEE ALSO

rrdgraph gives an overview of how rrdtool graph works. rrdgraph_data describes DEF,CDEF and VDEF in detail. rrdgraph_rpn describes the RPN language used in the xDEF statements. rrdgraph_graph page describes all the graph and print functions.

Make sure to read rrdgraph_examples for tips&tricks.

AUTHOR

Program by Tobias Oetiker <tobi@oetiker.ch>

This manual page by Alex van den Bogaerdt <alex@ergens.op.het.net>