(rrdplot.pl)
#!/usr/bin/env perl open(GP,"|gnuplot -persist") or die "no gnuplot"; print GP "set term dumb\n"; print GP "set xdata time\n"; print GP "set timefmt \"%Y/%m/%d %H:%M:%S\"\n"; print GP "plot \"-\" using 1:3, \"-\" using 1:4\n"; @temp = <>; #ds0 print GP @temp; print GP "e\n"; #ds1 print GP @temp; print GP "e\n"; close(GP);
使ってみる
$ alias 2lc="awk '{print strftime(\"%Y/%m/%d %H:%M\",\$1),\$2,\$3}'" ↑rrdtool fetchで取り出したデータの第一カラムをローカルタイムに変換する
$ rrdtool fetch localhost_2.rrd AVERAGE ds0 ds1 1333460700: -nan -nan 1333461000: -nan -nan ... 1333545900: 1.0268980667e+03 1.0408808889e+02 1333546200: 7.4477039132e+04 2.6070798402e+03 1333546500: 6.3879251308e+04 2.2179199416e+03 1333546800: 6.5218879169e+03 2.5832676941e+02 1333547100: -nan -nan $ rrdtool fetch localhost_2.rrd AVERAGE | tail -13 1333543500: 7.0626077911e+04 2.6522735333e+03 1333543800: 3.4181825297e+04 1.5148402410e+03 1333544100: 1.7116993181e+05 6.2082904529e+03 1333544400: 8.7736280625e+04 3.2752766839e+03 1333544700: 6.0311362644e+04 2.1175391333e+03 1333545000: 3.4044223200e+04 1.2133935111e+03 1333545300: 8.8547026667e+02 1.0151853333e+02 1333545600: 4.4273555556e+00 6.2731111111e-01 1333545900: 1.0268980667e+03 1.0408808889e+02 1333546200: 7.4477039132e+04 2.6070798402e+03 1333546500: 6.3879251308e+04 2.2179199416e+03 1333546800: 6.5218879169e+03 2.5832676941e+02 1333547100: -nan -nan $ rrdtool fetch localhost_2.rrd AVERAGE | tail -13 | 2lc 2012/04/04 21:45:00 7.0626077911e+04 2.6522735333e+03 2012/04/04 21:50:00 3.4181825297e+04 1.5148402410e+03 2012/04/04 21:55:00 1.7116993181e+05 6.2082904529e+03 2012/04/04 22:00:00 8.7736280625e+04 3.2752766839e+03 2012/04/04 22:05:00 6.0311362644e+04 2.1175391333e+03 2012/04/04 22:10:00 3.4044223200e+04 1.2133935111e+03 2012/04/04 22:15:00 8.8547026667e+02 1.0151853333e+02 2012/04/04 22:20:00 4.4273555556e+00 6.2731111111e-01 2012/04/04 22:25:00 1.0268980667e+03 1.0408808889e+02 2012/04/04 22:30:00 7.4477039132e+04 2.6070798402e+03 2012/04/04 22:35:00 6.3879251308e+04 2.2179199416e+03 2012/04/04 22:40:00 6.5218879169e+03 2.5832676941e+02 2012/04/04 22:45:00 -nan -nan $ rrdtool fetch localhost_2.rrd AVERAGE | tail -13 | 2lc | ./rrdplot.pl 180000 +++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++++-+++ + + A + + + + + "-" using 1:3 +A + 160000 ++ "-" using 1:4 B ++ | | 140000 ++ ++ | | 120000 ++ ++ | | 100000 ++ ++ | | | A | 80000 ++ A ++ A A | 60000 ++ A ++ | | 40000 ++ A A ++ | | 20000 ++ ++ + + B + + + + + + + + A 0 B++-++B++-+++++-++B++-++B++-++B++-++A++-++A++-++A++-++B++-++B++-++B 21:45:00:50:00:55:00:00:00:05:00:10:00:15:00:20:00:25:00:30:00:35:00:40:00 参照したURL: http://gnuplot.sourceforge.net/demo_4.4/timedat.html http://www.gnuplot.info/faq/faq.html#SECTION00098000000000000000 他
