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f3f47a67 AV |
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"; |