Arjan van de Ven | f3f47a6 | 2008-11-23 16:49:58 -0800 | [diff] [blame] | 1 | #!/usr/bin/perl |
| 2 | |
| 3 | # Copyright 2008, Intel Corporation |
| 4 | # |
| 5 | # This file is part of the Linux kernel |
| 6 | # |
| 7 | # This program file is free software; you can redistribute it and/or modify it |
| 8 | # under the terms of the GNU General Public License as published by the |
| 9 | # Free Software Foundation; version 2 of the License. |
| 10 | # |
| 11 | # This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | # for more details. |
| 15 | # |
| 16 | # You should have received a copy of the GNU General Public License |
| 17 | # along with this program in a file named COPYING; if not, write to the |
| 18 | # Free Software Foundation, Inc., |
| 19 | # 51 Franklin Street, Fifth Floor, |
| 20 | # Boston, MA 02110-1301 USA |
| 21 | # |
| 22 | # Authors: |
| 23 | # Arjan van de Ven <arjan@linux.intel.com> |
| 24 | |
| 25 | |
| 26 | # |
| 27 | # This script turns a cstate ftrace output into a SVG graphic that shows |
| 28 | # historic C-state information |
| 29 | # |
| 30 | # |
| 31 | # cat /sys/kernel/debug/tracing/trace | perl power.pl > out.svg |
| 32 | # |
| 33 | |
| 34 | my @styles; |
| 35 | my $base = 0; |
| 36 | |
| 37 | my @pstate_last; |
| 38 | my @pstate_level; |
| 39 | |
| 40 | $styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 41 | $styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 42 | $styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 43 | $styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 44 | $styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 45 | $styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 46 | $styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 47 | $styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 48 | $styles[8] = "fill:rgb(0,25,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; |
| 49 | |
| 50 | |
| 51 | print "<?xml version=\"1.0\" standalone=\"no\"?> \n"; |
| 52 | print "<svg width=\"10000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n"; |
| 53 | |
| 54 | my $scale = 30000.0; |
| 55 | while (<>) { |
| 56 | my $line = $_; |
| 57 | if ($line =~ /([0-9\.]+)\] CSTATE: Going to C([0-9]) on cpu ([0-9]+) for ([0-9\.]+)/) { |
| 58 | if ($base == 0) { |
| 59 | $base = $1; |
| 60 | } |
| 61 | my $time = $1 - $base; |
| 62 | $time = $time * $scale; |
| 63 | my $C = $2; |
| 64 | my $cpu = $3; |
| 65 | my $y = 400 * $cpu; |
| 66 | my $duration = $4 * $scale; |
| 67 | my $msec = int($4 * 100000)/100.0; |
| 68 | my $height = $C * 20; |
| 69 | $style = $styles[$C]; |
| 70 | |
| 71 | $y = $y + 140 - $height; |
| 72 | |
| 73 | $x2 = $time + 4; |
| 74 | $y2 = $y + 4; |
| 75 | |
| 76 | |
| 77 | print "<rect x=\"$time\" width=\"$duration\" y=\"$y\" height=\"$height\" style=\"$style\"/>\n"; |
| 78 | print "<text transform=\"translate($x2,$y2) rotate(90)\">C$C $msec</text>\n"; |
| 79 | } |
| 80 | if ($line =~ /([0-9\.]+)\] PSTATE: Going to P([0-9]) on cpu ([0-9]+)/) { |
| 81 | my $time = $1 - $base; |
| 82 | my $state = $2; |
| 83 | my $cpu = $3; |
| 84 | |
| 85 | if (defined($pstate_last[$cpu])) { |
| 86 | my $from = $pstate_last[$cpu]; |
| 87 | my $oldstate = $pstate_state[$cpu]; |
| 88 | my $duration = ($time-$from) * $scale; |
| 89 | |
| 90 | $from = $from * $scale; |
| 91 | my $to = $from + $duration; |
| 92 | my $height = 140 - ($oldstate * (140/8)); |
| 93 | |
| 94 | my $y = 400 * $cpu + 200 + $height; |
| 95 | my $y2 = $y+4; |
| 96 | my $style = $styles[8]; |
| 97 | |
| 98 | print "<rect x=\"$from\" y=\"$y\" width=\"$duration\" height=\"5\" style=\"$style\"/>\n"; |
| 99 | print "<text transform=\"translate($from,$y2)\">P$oldstate (cpu $cpu)</text>\n"; |
| 100 | }; |
| 101 | |
| 102 | $pstate_last[$cpu] = $time; |
| 103 | $pstate_state[$cpu] = $state; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | |
| 108 | print "</svg>\n"; |