mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-16 19:38:09 +00:00
1078 lines
31 KiB
Perl
Executable File
1078 lines
31 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
||
#
|
||
# flamegraph.pl flame stack grapher.
|
||
#
|
||
# This takes stack samples and renders a call graph, allowing hot functions
|
||
# and codepaths to be quickly identified. Stack samples can be generated using
|
||
# tools such as DTrace, perf, SystemTap, and Instruments.
|
||
#
|
||
# USAGE: ./flamegraph.pl [options] input.txt > graph.svg
|
||
#
|
||
# grep funcA input.txt | ./flamegraph.pl [options] > graph.svg
|
||
#
|
||
# Then open the resulting .svg in a web browser, for interactivity: mouse-over
|
||
# frames for info, click to zoom, and ctrl-F to search.
|
||
#
|
||
# Options are listed in the usage message (--help).
|
||
#
|
||
# The input is stack frames and sample counts formatted as single lines. Each
|
||
# frame in the stack is semicolon separated, with a space and count at the end
|
||
# of the line. These can be generated using DTrace with stackcollapse.pl,
|
||
# and other tools using the stackcollapse variants.
|
||
#
|
||
# An optional extra column of counts can be provided to generate a differential
|
||
# flame graph of the counts, colored red for more, and blue for less. This
|
||
# can be useful when using flame graphs for non-regression testing.
|
||
# See the header comment in the difffolded.pl program for instructions.
|
||
#
|
||
# The output graph shows relative presence of functions in stack samples. The
|
||
# ordering on the x-axis has no meaning; since the data is samples, time order
|
||
# of events is not known. The order used sorts function names alphabetically.
|
||
#
|
||
# While intended to process stack samples, this can also process stack traces.
|
||
# For example, tracing stacks for memory allocation, or resource usage. You
|
||
# can use --title to set the title to reflect the content, and --countname
|
||
# to change "samples" to "bytes" etc.
|
||
#
|
||
# There are a few different palettes, selectable using --color. By default,
|
||
# the colors are selected at random (except for differentials). Functions
|
||
# called "-" will be printed gray, which can be used for stack separators (eg,
|
||
# between user and kernel stacks).
|
||
#
|
||
# HISTORY
|
||
#
|
||
# This was inspired by Neelakanth Nadgir's excellent function_call_graph.rb
|
||
# program, which visualized function entry and return trace events. As Neel
|
||
# wrote: "The output displayed is inspired by Roch's CallStackAnalyzer which
|
||
# was in turn inspired by the work on vftrace by Jan Boerhout". See:
|
||
# https://blogs.oracle.com/realneel/entry/visualizing_callstacks_via_dtrace_and
|
||
#
|
||
# Copyright 2016 Netflix, Inc.
|
||
# Copyright 2011 Joyent, Inc. All rights reserved.
|
||
# Copyright 2011 Brendan Gregg. All rights reserved.
|
||
#
|
||
# CDDL HEADER START
|
||
#
|
||
# The contents of this file are subject to the terms of the
|
||
# Common Development and Distribution License (the "License").
|
||
# You may not use this file except in compliance with the License.
|
||
#
|
||
# You can obtain a copy of the license at docs/cddl1.txt or
|
||
# http://opensource.org/licenses/CDDL-1.0.
|
||
# See the License for the specific language governing permissions
|
||
# and limitations under the License.
|
||
#
|
||
# When distributing Covered Code, include this CDDL HEADER in each
|
||
# file and include the License file at docs/cddl1.txt.
|
||
# If applicable, add the following below this CDDL HEADER, with the
|
||
# fields enclosed by brackets "[]" replaced with your own identifying
|
||
# information: Portions Copyright [yyyy] [name of copyright owner]
|
||
#
|
||
# CDDL HEADER END
|
||
#
|
||
# 11-Oct-2014 Adrien Mahieux Added zoom.
|
||
# 21-Nov-2013 Shawn Sterling Added consistent palette file option
|
||
# 17-Mar-2013 Tim Bunce Added options and more tunables.
|
||
# 15-Dec-2011 Dave Pacheco Support for frames with whitespace.
|
||
# 10-Sep-2011 Brendan Gregg Created this.
|
||
|
||
use strict;
|
||
|
||
use Getopt::Long;
|
||
|
||
# tunables
|
||
my $encoding;
|
||
my $fonttype = "Verdana";
|
||
my $imagewidth = 1200; # max width, pixels
|
||
my $frameheight = 16; # max height is dynamic
|
||
my $fontsize = 12; # base text size
|
||
my $fontwidth = 0.59; # avg width relative to fontsize
|
||
my $minwidth = 0.1; # min function width, pixels
|
||
my $nametype = "Function:"; # what are the names in the data?
|
||
my $countname = "samples"; # what are the counts in the data?
|
||
my $colors = "hot"; # color theme
|
||
my $bgcolor1 = "#eeeeee"; # background color gradient start
|
||
my $bgcolor2 = "#eeeeb0"; # background color gradient stop
|
||
my $nameattrfile; # file holding function attributes
|
||
my $timemax; # (override the) sum of the counts
|
||
my $factor = 1; # factor to scale counts by
|
||
my $hash = 0; # color by function name
|
||
my $palette = 0; # if we use consistent palettes (default off)
|
||
my %palette_map; # palette map hash
|
||
my $pal_file = "palette.map"; # palette map file name
|
||
my $stackreverse = 0; # reverse stack order, switching merge end
|
||
my $inverted = 0; # icicle graph
|
||
my $negate = 0; # switch differential hues
|
||
my $titletext = ""; # centered heading
|
||
my $titledefault = "Flame Graph"; # overwritten by --title
|
||
my $titleinverted = "Icicle Graph"; # " "
|
||
my $searchcolor = "rgb(230,0,230)"; # color for search highlighting
|
||
my $help = 0;
|
||
|
||
sub usage {
|
||
die <<USAGE_END;
|
||
USAGE: $0 [options] infile > outfile.svg\n
|
||
--title # change title text
|
||
--width # width of image (default 1200)
|
||
--height # height of each frame (default 16)
|
||
--minwidth # omit smaller functions (default 0.1 pixels)
|
||
--fonttype # font type (default "Verdana")
|
||
--fontsize # font size (default 12)
|
||
--countname # count type label (default "samples")
|
||
--nametype # name type label (default "Function:")
|
||
--colors # set color palette. choices are: hot (default), mem, io,
|
||
# wakeup, chain, java, js, perl, red, green, blue, aqua,
|
||
# yellow, purple, orange
|
||
--hash # colors are keyed by function name hash
|
||
--cp # use consistent palette (palette.map)
|
||
--reverse # generate stack-reversed flame graph
|
||
--inverted # icicle graph
|
||
--negate # switch differential hues (blue<->red)
|
||
--help # this message
|
||
|
||
eg,
|
||
$0 --title="Flame Graph: malloc()" trace.txt > graph.svg
|
||
USAGE_END
|
||
}
|
||
|
||
GetOptions(
|
||
'fonttype=s' => \$fonttype,
|
||
'width=i' => \$imagewidth,
|
||
'height=i' => \$frameheight,
|
||
'encoding=s' => \$encoding,
|
||
'fontsize=f' => \$fontsize,
|
||
'fontwidth=f' => \$fontwidth,
|
||
'minwidth=f' => \$minwidth,
|
||
'title=s' => \$titletext,
|
||
'nametype=s' => \$nametype,
|
||
'countname=s' => \$countname,
|
||
'nameattr=s' => \$nameattrfile,
|
||
'total=s' => \$timemax,
|
||
'factor=f' => \$factor,
|
||
'colors=s' => \$colors,
|
||
'hash' => \$hash,
|
||
'cp' => \$palette,
|
||
'reverse' => \$stackreverse,
|
||
'inverted' => \$inverted,
|
||
'negate' => \$negate,
|
||
'help' => \$help,
|
||
) or usage();
|
||
$help && usage();
|
||
|
||
# internals
|
||
my $ypad1 = $fontsize * 4; # pad top, include title
|
||
my $ypad2 = $fontsize * 2 + 10; # pad bottom, include labels
|
||
my $xpad = 10; # pad lefm and right
|
||
my $framepad = 1; # vertical padding for frames
|
||
my $depthmax = 0;
|
||
my %Events;
|
||
my %nameattr;
|
||
|
||
if ($titletext eq "") {
|
||
unless ($inverted) {
|
||
$titletext = $titledefault;
|
||
} else {
|
||
$titletext = $titleinverted;
|
||
}
|
||
}
|
||
|
||
if ($nameattrfile) {
|
||
# The name-attribute file format is a function name followed by a tab then
|
||
# a sequence of tab separated name=value pairs.
|
||
open my $attrfh, $nameattrfile or die "Can't read $nameattrfile: $!\n";
|
||
while (<$attrfh>) {
|
||
chomp;
|
||
my ($funcname, $attrstr) = split /\t/, $_, 2;
|
||
die "Invalid format in $nameattrfile" unless defined $attrstr;
|
||
$nameattr{$funcname} = { map { split /=/, $_, 2 } split /\t/, $attrstr };
|
||
}
|
||
}
|
||
|
||
# background colors:
|
||
# - yellow gradient: default (hot, java, js, perl)
|
||
# - blue gradient: mem, chain
|
||
# - gray gradient: io, wakeup, flat colors (red, green, blue, ...)
|
||
if ($colors eq "mem" or $colors eq "chain") {
|
||
$bgcolor1 = "#eeeeee"; $bgcolor2 = "#e0e0ff";
|
||
}
|
||
if ($colors =~ /^(io|wakeup|red|green|blue|aqua|yellow|purple|orange)$/) {
|
||
$bgcolor1 = "#f8f8f8"; $bgcolor2 = "#e8e8e8";
|
||
}
|
||
|
||
# SVG functions
|
||
{ package SVG;
|
||
sub new {
|
||
my $class = shift;
|
||
my $self = {};
|
||
bless ($self, $class);
|
||
return $self;
|
||
}
|
||
|
||
sub header {
|
||
my ($self, $w, $h) = @_;
|
||
my $enc_attr = '';
|
||
if (defined $encoding) {
|
||
$enc_attr = qq{ encoding="$encoding"};
|
||
}
|
||
$self->{svg} .= <<SVG;
|
||
<?xml version="1.0"$enc_attr standalone="no"?>
|
||
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
|
||
<svg version="1.1" width="$w" height="$h" onload="init(evt)" viewBox="0 0 $w $h" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||
<!-- Flame graph stack visualization. See https://github.com/brendangregg/FlameGraph for latest version, and http://www.brendangregg.com/flamegraphs.html for examples. -->
|
||
SVG
|
||
}
|
||
|
||
sub include {
|
||
my ($self, $content) = @_;
|
||
$self->{svg} .= $content;
|
||
}
|
||
|
||
sub colorAllocate {
|
||
my ($self, $r, $g, $b) = @_;
|
||
return "rgb($r,$g,$b)";
|
||
}
|
||
|
||
sub group_start {
|
||
my ($self, $attr) = @_;
|
||
|
||
my @g_attr = map {
|
||
exists $attr->{$_} ? sprintf(qq/$_="%s"/, $attr->{$_}) : ()
|
||
} qw(class style onmouseover onmouseout onclick);
|
||
push @g_attr, $attr->{g_extra} if $attr->{g_extra};
|
||
$self->{svg} .= sprintf qq/<g %s>\n/, join(' ', @g_attr);
|
||
|
||
$self->{svg} .= sprintf qq/<title>%s<\/title>/, $attr->{title}
|
||
if $attr->{title}; # should be first element within g container
|
||
|
||
if ($attr->{href}) {
|
||
my @a_attr;
|
||
push @a_attr, sprintf qq/xlink:href="%s"/, $attr->{href} if $attr->{href};
|
||
# default target=_top else links will open within SVG <object>
|
||
push @a_attr, sprintf qq/target="%s"/, $attr->{target} || "_top";
|
||
push @a_attr, $attr->{a_extra} if $attr->{a_extra};
|
||
$self->{svg} .= sprintf qq/<a %s>/, join(' ', @a_attr);
|
||
}
|
||
}
|
||
|
||
sub group_end {
|
||
my ($self, $attr) = @_;
|
||
$self->{svg} .= qq/<\/a>\n/ if $attr->{href};
|
||
$self->{svg} .= qq/<\/g>\n/;
|
||
}
|
||
|
||
sub filledRectangle {
|
||
my ($self, $x1, $y1, $x2, $y2, $fill, $extra) = @_;
|
||
$x1 = sprintf "%0.1f", $x1;
|
||
$x2 = sprintf "%0.1f", $x2;
|
||
my $w = sprintf "%0.1f", $x2 - $x1;
|
||
my $h = sprintf "%0.1f", $y2 - $y1;
|
||
$extra = defined $extra ? $extra : "";
|
||
$self->{svg} .= qq/<rect x="$x1" y="$y1" width="$w" height="$h" fill="$fill" $extra \/>\n/;
|
||
}
|
||
|
||
sub stringTTF {
|
||
my ($self, $color, $font, $size, $angle, $x, $y, $str, $loc, $extra) = @_;
|
||
$x = sprintf "%0.2f", $x;
|
||
$loc = defined $loc ? $loc : "left";
|
||
$extra = defined $extra ? $extra : "";
|
||
$self->{svg} .= qq/<text text-anchor="$loc" x="$x" y="$y" font-size="$size" font-family="$font" fill="$color" $extra >$str<\/text>\n/;
|
||
}
|
||
|
||
sub svg {
|
||
my $self = shift;
|
||
return "$self->{svg}</svg>\n";
|
||
}
|
||
1;
|
||
}
|
||
|
||
sub namehash {
|
||
# Generate a vector hash for the name string, weighting early over
|
||
# later characters. We want to pick the same colors for function
|
||
# names across different flame graphs.
|
||
my $name = shift;
|
||
my $vector = 0;
|
||
my $weight = 1;
|
||
my $max = 1;
|
||
my $mod = 10;
|
||
# if module name present, trunc to 1st char
|
||
$name =~ s/.(.*?)`//;
|
||
foreach my $c (split //, $name) {
|
||
my $i = (ord $c) % $mod;
|
||
$vector += ($i / ($mod++ - 1)) * $weight;
|
||
$max += 1 * $weight;
|
||
$weight *= 0.70;
|
||
last if $mod > 12;
|
||
}
|
||
return (1 - $vector / $max)
|
||
}
|
||
|
||
sub color {
|
||
my ($type, $hash, $name) = @_;
|
||
my ($v1, $v2, $v3);
|
||
|
||
if ($hash) {
|
||
$v1 = namehash($name);
|
||
$v2 = $v3 = namehash(scalar reverse $name);
|
||
} else {
|
||
$v1 = rand(1);
|
||
$v2 = rand(1);
|
||
$v3 = rand(1);
|
||
}
|
||
|
||
# theme palettes
|
||
if (defined $type and $type eq "hot") {
|
||
my $r = 205 + int(50 * $v3);
|
||
my $g = 0 + int(230 * $v1);
|
||
my $b = 0 + int(55 * $v2);
|
||
return "rgb($r,$g,$b)";
|
||
}
|
||
if (defined $type and $type eq "mem") {
|
||
my $r = 0;
|
||
my $g = 190 + int(50 * $v2);
|
||
my $b = 0 + int(210 * $v1);
|
||
return "rgb($r,$g,$b)";
|
||
}
|
||
if (defined $type and $type eq "io") {
|
||
my $r = 80 + int(60 * $v1);
|
||
my $g = $r;
|
||
my $b = 190 + int(55 * $v2);
|
||
return "rgb($r,$g,$b)";
|
||
}
|
||
|
||
# multi palettes
|
||
if (defined $type and $type eq "java") {
|
||
if ($name =~ m:(/|\.):) { # Java (match "/" in path)
|
||
$type = "green";
|
||
$type = "aqua" if $name =~ m/_\[i\]/; #inline
|
||
} elsif ($name =~ /::/) { # C++
|
||
$type = "yellow";
|
||
} elsif ($name =~ m:_\[k\]:) { # kernel
|
||
$type = "orange"
|
||
} else { # system
|
||
$type = "red";
|
||
}
|
||
# fall-through to color palettes
|
||
}
|
||
if (defined $type and $type eq "perl") {
|
||
if ($name =~ /::/) { # C++
|
||
$type = "yellow";
|
||
} elsif ($name =~ m:Perl: or $name =~ m:\.pl:) { # Perl
|
||
$type = "green";
|
||
} elsif ($name =~ m:_\[k\]:) { # kernel
|
||
$type = "orange"
|
||
} else { # system
|
||
$type = "red";
|
||
}
|
||
# fall-through to color palettes
|
||
}
|
||
if (defined $type and $type eq "js") {
|
||
if ($name =~ /::/) { # C++
|
||
$type = "yellow";
|
||
} elsif ($name =~ m:/:) { # JavaScript (match "/" in path)
|
||
$type = "green"
|
||
} elsif ($name =~ m/:/) { # JavaScript (match ":" in builtin)
|
||
$type = "aqua"
|
||
} elsif ($name =~ m/^ $/) { # Missing symbol
|
||
$type = "green"
|
||
} elsif ($name =~ m:_\[k\]:) { # kernel
|
||
$type = "orange"
|
||
} else { # system
|
||
$type = "red";
|
||
}
|
||
# fall-through to color palettes
|
||
}
|
||
if (defined $type and $type eq "wakeup") {
|
||
$type = "aqua";
|
||
# fall-through to color palettes
|
||
}
|
||
if (defined $type and $type eq "chain") {
|
||
if ($name =~ m:_\[w\]:) { # waker
|
||
$type = "aqua"
|
||
} else { # off-CPU
|
||
$type = "blue";
|
||
}
|
||
# fall-through to color palettes
|
||
}
|
||
|
||
# color palettes
|
||
if (defined $type and $type eq "red") {
|
||
my $r = 200 + int(55 * $v1);
|
||
my $x = 50 + int(80 * $v1);
|
||
return "rgb($r,$x,$x)";
|
||
}
|
||
if (defined $type and $type eq "green") {
|
||
my $g = 200 + int(55 * $v1);
|
||
my $x = 50 + int(60 * $v1);
|
||
return "rgb($x,$g,$x)";
|
||
}
|
||
if (defined $type and $type eq "blue") {
|
||
my $b = 205 + int(50 * $v1);
|
||
my $x = 80 + int(60 * $v1);
|
||
return "rgb($x,$x,$b)";
|
||
}
|
||
if (defined $type and $type eq "yellow") {
|
||
my $x = 175 + int(55 * $v1);
|
||
my $b = 50 + int(20 * $v1);
|
||
return "rgb($x,$x,$b)";
|
||
}
|
||
if (defined $type and $type eq "purple") {
|
||
my $x = 190 + int(65 * $v1);
|
||
my $g = 80 + int(60 * $v1);
|
||
return "rgb($x,$g,$x)";
|
||
}
|
||
if (defined $type and $type eq "aqua") {
|
||
my $r = 50 + int(60 * $v1);
|
||
my $g = 165 + int(55 * $v1);
|
||
my $b = 165 + int(55 * $v1);
|
||
return "rgb($r,$g,$b)";
|
||
}
|
||
if (defined $type and $type eq "orange") {
|
||
my $r = 190 + int(65 * $v1);
|
||
my $g = 90 + int(65 * $v1);
|
||
return "rgb($r,$g,0)";
|
||
}
|
||
|
||
return "rgb(0,0,0)";
|
||
}
|
||
|
||
sub color_scale {
|
||
my ($value, $max) = @_;
|
||
my ($r, $g, $b) = (255, 255, 255);
|
||
$value = -$value if $negate;
|
||
if ($value > 0) {
|
||
$g = $b = int(210 * ($max - $value) / $max);
|
||
} elsif ($value < 0) {
|
||
$r = $g = int(210 * ($max + $value) / $max);
|
||
}
|
||
return "rgb($r,$g,$b)";
|
||
}
|
||
|
||
sub color_map {
|
||
my ($colors, $func) = @_;
|
||
if (exists $palette_map{$func}) {
|
||
return $palette_map{$func};
|
||
} else {
|
||
$palette_map{$func} = color($colors, $hash, $func);
|
||
return $palette_map{$func};
|
||
}
|
||
}
|
||
|
||
sub write_palette {
|
||
open(FILE, ">$pal_file");
|
||
foreach my $key (sort keys %palette_map) {
|
||
print FILE $key."->".$palette_map{$key}."\n";
|
||
}
|
||
close(FILE);
|
||
}
|
||
|
||
sub read_palette {
|
||
if (-e $pal_file) {
|
||
open(FILE, $pal_file) or die "can't open file $pal_file: $!";
|
||
while ( my $line = <FILE>) {
|
||
chomp($line);
|
||
(my $key, my $value) = split("->",$line);
|
||
$palette_map{$key}=$value;
|
||
}
|
||
close(FILE)
|
||
}
|
||
}
|
||
|
||
my %Node; # Hash of merged frame data
|
||
my %Tmp;
|
||
|
||
# flow() merges two stacks, storing the merged frames and value data in %Node.
|
||
sub flow {
|
||
my ($last, $this, $v, $d) = @_;
|
||
|
||
my $len_a = @$last - 1;
|
||
my $len_b = @$this - 1;
|
||
|
||
my $i = 0;
|
||
my $len_same;
|
||
for (; $i <= $len_a; $i++) {
|
||
last if $i > $len_b;
|
||
last if $last->[$i] ne $this->[$i];
|
||
}
|
||
$len_same = $i;
|
||
|
||
for ($i = $len_a; $i >= $len_same; $i--) {
|
||
my $k = "$last->[$i];$i";
|
||
# a unique ID is constructed from "func;depth;etime";
|
||
# func-depth isn't unique, it may be repeated later.
|
||
$Node{"$k;$v"}->{stime} = delete $Tmp{$k}->{stime};
|
||
if (defined $Tmp{$k}->{delta}) {
|
||
$Node{"$k;$v"}->{delta} = delete $Tmp{$k}->{delta};
|
||
}
|
||
delete $Tmp{$k};
|
||
}
|
||
|
||
for ($i = $len_same; $i <= $len_b; $i++) {
|
||
my $k = "$this->[$i];$i";
|
||
$Tmp{$k}->{stime} = $v;
|
||
if (defined $d) {
|
||
$Tmp{$k}->{delta} += $i == $len_b ? $d : 0;
|
||
}
|
||
}
|
||
|
||
return $this;
|
||
}
|
||
|
||
# parse input
|
||
my @Data;
|
||
my $last = [];
|
||
my $time = 0;
|
||
my $delta = undef;
|
||
my $ignored = 0;
|
||
my $line;
|
||
my $maxdelta = 1;
|
||
|
||
# reverse if needed
|
||
foreach (<>) {
|
||
chomp;
|
||
$line = $_;
|
||
if ($stackreverse) {
|
||
# there may be an extra samples column for differentials
|
||
# XXX todo: redo these REs as one. It's repeated below.
|
||
my($stack, $samples) = (/^(.*)\s+?(\d+(?:\.\d*)?)$/);
|
||
my $samples2 = undef;
|
||
if ($stack =~ /^(.*)\s+?(\d+(?:\.\d*)?)$/) {
|
||
$samples2 = $samples;
|
||
($stack, $samples) = $stack =~ (/^(.*)\s+?(\d+(?:\.\d*)?)$/);
|
||
unshift @Data, join(";", reverse split(";", $stack)) . " $samples $samples2";
|
||
} else {
|
||
unshift @Data, join(";", reverse split(";", $stack)) . " $samples";
|
||
}
|
||
} else {
|
||
unshift @Data, $line;
|
||
}
|
||
}
|
||
|
||
# process and merge frames
|
||
foreach (sort @Data) {
|
||
chomp;
|
||
# process: folded_stack count
|
||
# eg: func_a;func_b;func_c 31
|
||
my ($stack, $samples) = (/^(.*)\s+?(\d+(?:\.\d*)?)$/);
|
||
unless (defined $samples and defined $stack) {
|
||
++$ignored;
|
||
next;
|
||
}
|
||
|
||
# there may be an extra samples column for differentials:
|
||
my $samples2 = undef;
|
||
if ($stack =~ /^(.*)\s+?(\d+(?:\.\d*)?)$/) {
|
||
$samples2 = $samples;
|
||
($stack, $samples) = $stack =~ (/^(.*)\s+?(\d+(?:\.\d*)?)$/);
|
||
}
|
||
$delta = undef;
|
||
if (defined $samples2) {
|
||
$delta = $samples2 - $samples;
|
||
$maxdelta = abs($delta) if abs($delta) > $maxdelta;
|
||
}
|
||
|
||
# clean up SVG breaking characters:
|
||
$stack =~ tr/<>/()/;
|
||
|
||
# for chain graphs, annotate waker frames with "_[w]", for later
|
||
# coloring. This is a hack, but has a precedent ("_[k]" from perf).
|
||
if ($colors eq "chain") {
|
||
my @parts = split ";-;", $stack;
|
||
my @newparts = ();
|
||
$stack = shift @parts;
|
||
$stack .= ";-;";
|
||
foreach my $part (@parts) {
|
||
$part =~ s/;/_[w];/g;
|
||
$part .= "_[w]";
|
||
push @newparts, $part;
|
||
}
|
||
$stack .= join ";-;", @parts;
|
||
}
|
||
|
||
# merge frames and populate %Node:
|
||
$last = flow($last, [ '', split ";", $stack ], $time, $delta);
|
||
|
||
if (defined $samples2) {
|
||
$time += $samples2;
|
||
} else {
|
||
$time += $samples;
|
||
}
|
||
}
|
||
flow($last, [], $time, $delta);
|
||
|
||
warn "Ignored $ignored lines with invalid format\n" if $ignored;
|
||
unless ($time) {
|
||
warn "ERROR: No stack counts found\n";
|
||
my $im = SVG->new();
|
||
# emit an error message SVG, for tools automating flamegraph use
|
||
my $imageheight = $fontsize * 5;
|
||
$im->header($imagewidth, $imageheight);
|
||
$im->stringTTF($im->colorAllocate(0, 0, 0), $fonttype, $fontsize + 2,
|
||
0.0, int($imagewidth / 2), $fontsize * 2,
|
||
"ERROR: No valid input provided to flamegraph.pl.", "middle");
|
||
print $im->svg;
|
||
exit 2;
|
||
}
|
||
if ($timemax and $timemax < $time) {
|
||
warn "Specified --total $timemax is less than actual total $time, so ignored\n"
|
||
if $timemax/$time > 0.02; # only warn is significant (e.g., not rounding etc)
|
||
undef $timemax;
|
||
}
|
||
$timemax ||= $time;
|
||
|
||
my $widthpertime = ($imagewidth - 2 * $xpad) / $timemax;
|
||
my $minwidth_time = $minwidth / $widthpertime;
|
||
|
||
# prune blocks that are too narrow and determine max depth
|
||
while (my ($id, $node) = each %Node) {
|
||
my ($func, $depth, $etime) = split ";", $id;
|
||
my $stime = $node->{stime};
|
||
die "missing start for $id" if not defined $stime;
|
||
|
||
if (($etime-$stime) < $minwidth_time) {
|
||
delete $Node{$id};
|
||
next;
|
||
}
|
||
$depthmax = $depth if $depth > $depthmax;
|
||
}
|
||
|
||
# draw canvas, and embed interactive JavaScript program
|
||
my $imageheight = ($depthmax * $frameheight) + $ypad1 + $ypad2;
|
||
my $im = SVG->new();
|
||
$im->header($imagewidth, $imageheight);
|
||
my $inc = <<INC;
|
||
<defs >
|
||
<linearGradient id="background" y1="0" y2="1" x1="0" x2="0" >
|
||
<stop stop-color="$bgcolor1" offset="5%" />
|
||
<stop stop-color="$bgcolor2" offset="95%" />
|
||
</linearGradient>
|
||
</defs>
|
||
<style type="text/css">
|
||
.func_g:hover { stroke:black; stroke-width:0.5; cursor:pointer; }
|
||
</style>
|
||
<script type="text/ecmascript">
|
||
<![CDATA[
|
||
var details, searchbtn, matchedtxt, svg;
|
||
function init(evt) {
|
||
details = document.getElementById("details").firstChild;
|
||
searchbtn = document.getElementById("search");
|
||
matchedtxt = document.getElementById("matched");
|
||
svg = document.getElementsByTagName("svg")[0];
|
||
searching = 0;
|
||
}
|
||
|
||
// mouse-over for info
|
||
function s(node) { // show
|
||
info = g_to_text(node);
|
||
details.nodeValue = "$nametype " + info;
|
||
}
|
||
function c() { // clear
|
||
details.nodeValue = ' ';
|
||
}
|
||
|
||
// ctrl-F for search
|
||
window.addEventListener("keydown",function (e) {
|
||
if (e.keyCode === 114 || (e.ctrlKey && e.keyCode === 70)) {
|
||
e.preventDefault();
|
||
search_prompt();
|
||
}
|
||
})
|
||
|
||
// functions
|
||
function find_child(parent, name, attr) {
|
||
var children = parent.childNodes;
|
||
for (var i=0; i<children.length;i++) {
|
||
if (children[i].tagName == name)
|
||
return (attr != undefined) ? children[i].attributes[attr].value : children[i];
|
||
}
|
||
return;
|
||
}
|
||
function orig_save(e, attr, val) {
|
||
if (e.attributes["_orig_"+attr] != undefined) return;
|
||
if (e.attributes[attr] == undefined) return;
|
||
if (val == undefined) val = e.attributes[attr].value;
|
||
e.setAttribute("_orig_"+attr, val);
|
||
}
|
||
function orig_load(e, attr) {
|
||
if (e.attributes["_orig_"+attr] == undefined) return;
|
||
e.attributes[attr].value = e.attributes["_orig_"+attr].value;
|
||
e.removeAttribute("_orig_"+attr);
|
||
}
|
||
function g_to_text(e) {
|
||
var text = find_child(e, "title").firstChild.nodeValue;
|
||
return (text)
|
||
}
|
||
function g_to_func(e) {
|
||
var func = g_to_text(e);
|
||
if (func != null)
|
||
func = func.replace(/ .*/, "");
|
||
return (func);
|
||
}
|
||
function update_text(e) {
|
||
var r = find_child(e, "rect");
|
||
var t = find_child(e, "text");
|
||
var w = parseFloat(r.attributes["width"].value) -3;
|
||
var txt = find_child(e, "title").textContent.replace(/\\([^(]*\\)\$/,"");
|
||
t.attributes["x"].value = parseFloat(r.attributes["x"].value) +3;
|
||
|
||
// Smaller than this size won't fit anything
|
||
if (w < 2*$fontsize*$fontwidth) {
|
||
t.textContent = "";
|
||
return;
|
||
}
|
||
|
||
t.textContent = txt;
|
||
// Fit in full text width
|
||
if (/^ *\$/.test(txt) || t.getSubStringLength(0, txt.length) < w)
|
||
return;
|
||
|
||
for (var x=txt.length-2; x>0; x--) {
|
||
if (t.getSubStringLength(0, x+2) <= w) {
|
||
t.textContent = txt.substring(0,x) + "..";
|
||
return;
|
||
}
|
||
}
|
||
t.textContent = "";
|
||
}
|
||
|
||
// zoom
|
||
function zoom_reset(e) {
|
||
if (e.attributes != undefined) {
|
||
orig_load(e, "x");
|
||
orig_load(e, "width");
|
||
}
|
||
if (e.childNodes == undefined) return;
|
||
for(var i=0, c=e.childNodes; i<c.length; i++) {
|
||
zoom_reset(c[i]);
|
||
}
|
||
}
|
||
function zoom_child(e, x, ratio) {
|
||
if (e.attributes != undefined) {
|
||
if (e.attributes["x"] != undefined) {
|
||
orig_save(e, "x");
|
||
e.attributes["x"].value = (parseFloat(e.attributes["x"].value) - x - $xpad) * ratio + $xpad;
|
||
if(e.tagName == "text") e.attributes["x"].value = find_child(e.parentNode, "rect", "x") + 3;
|
||
}
|
||
if (e.attributes["width"] != undefined) {
|
||
orig_save(e, "width");
|
||
e.attributes["width"].value = parseFloat(e.attributes["width"].value) * ratio;
|
||
}
|
||
}
|
||
|
||
if (e.childNodes == undefined) return;
|
||
for(var i=0, c=e.childNodes; i<c.length; i++) {
|
||
zoom_child(c[i], x-$xpad, ratio);
|
||
}
|
||
}
|
||
function zoom_parent(e) {
|
||
if (e.attributes) {
|
||
if (e.attributes["x"] != undefined) {
|
||
orig_save(e, "x");
|
||
e.attributes["x"].value = $xpad;
|
||
}
|
||
if (e.attributes["width"] != undefined) {
|
||
orig_save(e, "width");
|
||
e.attributes["width"].value = parseInt(svg.width.baseVal.value) - ($xpad*2);
|
||
}
|
||
}
|
||
if (e.childNodes == undefined) return;
|
||
for(var i=0, c=e.childNodes; i<c.length; i++) {
|
||
zoom_parent(c[i]);
|
||
}
|
||
}
|
||
function zoom(node) {
|
||
var attr = find_child(node, "rect").attributes;
|
||
var width = parseFloat(attr["width"].value);
|
||
var xmin = parseFloat(attr["x"].value);
|
||
var xmax = parseFloat(xmin + width);
|
||
var ymin = parseFloat(attr["y"].value);
|
||
var ratio = (svg.width.baseVal.value - 2*$xpad) / width;
|
||
|
||
// XXX: Workaround for JavaScript float issues (fix me)
|
||
var fudge = 0.0001;
|
||
|
||
var unzoombtn = document.getElementById("unzoom");
|
||
unzoombtn.style["opacity"] = "1.0";
|
||
|
||
var el = document.getElementsByTagName("g");
|
||
for(var i=0;i<el.length;i++){
|
||
var e = el[i];
|
||
var a = find_child(e, "rect").attributes;
|
||
var ex = parseFloat(a["x"].value);
|
||
var ew = parseFloat(a["width"].value);
|
||
// Is it an ancestor
|
||
if ($inverted == 0) {
|
||
var upstack = parseFloat(a["y"].value) > ymin;
|
||
} else {
|
||
var upstack = parseFloat(a["y"].value) < ymin;
|
||
}
|
||
if (upstack) {
|
||
// Direct ancestor
|
||
if (ex <= xmin && (ex+ew+fudge) >= xmax) {
|
||
e.style["opacity"] = "0.5";
|
||
zoom_parent(e);
|
||
e.onclick = function(e){unzoom(); zoom(this);};
|
||
update_text(e);
|
||
}
|
||
// not in current path
|
||
else
|
||
e.style["display"] = "none";
|
||
}
|
||
// Children maybe
|
||
else {
|
||
// no common path
|
||
if (ex < xmin || ex + fudge >= xmax) {
|
||
e.style["display"] = "none";
|
||
}
|
||
else {
|
||
zoom_child(e, xmin, ratio);
|
||
e.onclick = function(e){zoom(this);};
|
||
update_text(e);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
function unzoom() {
|
||
var unzoombtn = document.getElementById("unzoom");
|
||
unzoombtn.style["opacity"] = "0.0";
|
||
|
||
var el = document.getElementsByTagName("g");
|
||
for(i=0;i<el.length;i++) {
|
||
el[i].style["display"] = "block";
|
||
el[i].style["opacity"] = "1";
|
||
zoom_reset(el[i]);
|
||
update_text(el[i]);
|
||
}
|
||
}
|
||
|
||
// search
|
||
function reset_search() {
|
||
var el = document.getElementsByTagName("rect");
|
||
for (var i=0; i < el.length; i++) {
|
||
orig_load(el[i], "fill")
|
||
}
|
||
}
|
||
function search_prompt() {
|
||
if (!searching) {
|
||
var term = prompt("Enter a search term (regexp " +
|
||
"allowed, eg: ^ext4_)", "");
|
||
if (term != null) {
|
||
search(term)
|
||
}
|
||
} else {
|
||
reset_search();
|
||
searching = 0;
|
||
searchbtn.style["opacity"] = "0.1";
|
||
searchbtn.firstChild.nodeValue = "Search"
|
||
matchedtxt.style["opacity"] = "0.0";
|
||
matchedtxt.firstChild.nodeValue = ""
|
||
}
|
||
}
|
||
function search(term) {
|
||
var re = new RegExp(term);
|
||
var el = document.getElementsByTagName("g");
|
||
var matches = new Object();
|
||
var maxwidth = 0;
|
||
for (var i = 0; i < el.length; i++) {
|
||
var e = el[i];
|
||
if (e.attributes["class"].value != "func_g")
|
||
continue;
|
||
var func = g_to_func(e);
|
||
var rect = find_child(e, "rect");
|
||
if (rect == null) {
|
||
// the rect might be wrapped in an anchor
|
||
// if nameattr href is being used
|
||
if (rect = find_child(e, "a")) {
|
||
rect = find_child(r, "rect");
|
||
}
|
||
}
|
||
if (func == null || rect == null)
|
||
continue;
|
||
|
||
// Save max width. Only works as we have a root frame
|
||
var w = parseFloat(rect.attributes["width"].value);
|
||
if (w > maxwidth)
|
||
maxwidth = w;
|
||
|
||
if (func.match(re)) {
|
||
// highlight
|
||
var x = parseFloat(rect.attributes["x"].value);
|
||
orig_save(rect, "fill");
|
||
rect.attributes["fill"].value =
|
||
"$searchcolor";
|
||
|
||
// remember matches
|
||
if (matches[x] == undefined) {
|
||
matches[x] = w;
|
||
} else {
|
||
if (w > matches[x]) {
|
||
// overwrite with parent
|
||
matches[x] = w;
|
||
}
|
||
}
|
||
searching = 1;
|
||
}
|
||
}
|
||
if (!searching)
|
||
return;
|
||
|
||
searchbtn.style["opacity"] = "1.0";
|
||
searchbtn.firstChild.nodeValue = "Reset Search"
|
||
|
||
// calculate percent matched, excluding vertical overlap
|
||
var count = 0;
|
||
var lastx = -1;
|
||
var lastw = 0;
|
||
var keys = Array();
|
||
for (k in matches) {
|
||
if (matches.hasOwnProperty(k))
|
||
keys.push(k);
|
||
}
|
||
// sort the matched frames by their x location
|
||
// ascending, then width descending
|
||
keys.sort(function(a, b){
|
||
return a - b;
|
||
if (a < b || a > b)
|
||
return a - b;
|
||
return matches[b] - matches[a];
|
||
});
|
||
// Step through frames saving only the biggest bottom-up frames
|
||
// thanks to the sort order. This relies on the tree property
|
||
// where children are always smaller than their parents.
|
||
for (var k in keys) {
|
||
var x = parseFloat(keys[k]);
|
||
var w = matches[keys[k]];
|
||
if (x >= lastx + lastw) {
|
||
count += w;
|
||
lastx = x;
|
||
lastw = w;
|
||
}
|
||
}
|
||
// display matched percent
|
||
matchedtxt.style["opacity"] = "1.0";
|
||
pct = 100 * count / maxwidth;
|
||
if (pct == 100)
|
||
pct = "100"
|
||
else
|
||
pct = pct.toFixed(1)
|
||
matchedtxt.firstChild.nodeValue = "Matched: " + pct + "%";
|
||
}
|
||
function searchover(e) {
|
||
searchbtn.style["opacity"] = "1.0";
|
||
}
|
||
function searchout(e) {
|
||
if (searching) {
|
||
searchbtn.style["opacity"] = "1.0";
|
||
} else {
|
||
searchbtn.style["opacity"] = "0.1";
|
||
}
|
||
}
|
||
]]>
|
||
</script>
|
||
INC
|
||
$im->include($inc);
|
||
$im->filledRectangle(0, 0, $imagewidth, $imageheight, 'url(#background)');
|
||
my ($white, $black, $vvdgrey, $vdgrey) = (
|
||
$im->colorAllocate(255, 255, 255),
|
||
$im->colorAllocate(0, 0, 0),
|
||
$im->colorAllocate(40, 40, 40),
|
||
$im->colorAllocate(160, 160, 160),
|
||
);
|
||
$im->stringTTF($black, $fonttype, $fontsize + 5, 0.0, int($imagewidth / 2), $fontsize * 2, $titletext, "middle");
|
||
$im->stringTTF($black, $fonttype, $fontsize, 0.0, $xpad, $imageheight - ($ypad2 / 2), " ", "", 'id="details"');
|
||
$im->stringTTF($black, $fonttype, $fontsize, 0.0, $xpad, $fontsize * 2,
|
||
"Reset Zoom", "", 'id="unzoom" onclick="unzoom()" style="opacity:0.0;cursor:pointer"');
|
||
$im->stringTTF($black, $fonttype, $fontsize, 0.0, $imagewidth - $xpad - 100,
|
||
$fontsize * 2, "Search", "", 'id="search" onmouseover="searchover()" onmouseout="searchout()" onclick="search_prompt()" style="opacity:0.1;cursor:pointer"');
|
||
$im->stringTTF($black, $fonttype, $fontsize, 0.0, $imagewidth - $xpad - 100, $imageheight - ($ypad2 / 2), " ", "", 'id="matched"');
|
||
|
||
if ($palette) {
|
||
read_palette();
|
||
}
|
||
|
||
# draw frames
|
||
while (my ($id, $node) = each %Node) {
|
||
my ($func, $depth, $etime) = split ";", $id;
|
||
my $stime = $node->{stime};
|
||
my $delta = $node->{delta};
|
||
|
||
$etime = $timemax if $func eq "" and $depth == 0;
|
||
|
||
my $x1 = $xpad + $stime * $widthpertime;
|
||
my $x2 = $xpad + $etime * $widthpertime;
|
||
my ($y1, $y2);
|
||
unless ($inverted) {
|
||
$y1 = $imageheight - $ypad2 - ($depth + 1) * $frameheight + $framepad;
|
||
$y2 = $imageheight - $ypad2 - $depth * $frameheight;
|
||
} else {
|
||
$y1 = $ypad1 + $depth * $frameheight;
|
||
$y2 = $ypad1 + ($depth + 1) * $frameheight - $framepad;
|
||
}
|
||
|
||
my $samples = sprintf "%.0f", ($etime - $stime) * $factor;
|
||
(my $samples_txt = $samples) # add commas per perlfaq5
|
||
=~ s/(^[-+]?\d+?(?=(?>(?:\d{3})+)(?!\d))|\G\d{3}(?=\d))/$1,/g;
|
||
|
||
my $info;
|
||
if ($func eq "" and $depth == 0) {
|
||
$info = "all ($samples_txt $countname, 100%)";
|
||
} else {
|
||
my $pct = sprintf "%.2f", ((100 * $samples) / ($timemax * $factor));
|
||
my $escaped_func = $func;
|
||
$escaped_func =~ s/&/&/g;
|
||
$escaped_func =~ s/</</g;
|
||
$escaped_func =~ s/>/>/g;
|
||
$escaped_func =~ s/"/"/g;
|
||
$escaped_func =~ s/_\[[kwi]\]$//; # strip any annotation
|
||
unless (defined $delta) {
|
||
$info = "$escaped_func ($samples_txt $countname, $pct%)";
|
||
} else {
|
||
my $d = $negate ? -$delta : $delta;
|
||
my $deltapct = sprintf "%.2f", ((100 * $d) / ($timemax * $factor));
|
||
$deltapct = $d > 0 ? "+$deltapct" : $deltapct;
|
||
$info = "$escaped_func ($samples_txt $countname, $pct%; $deltapct%)";
|
||
}
|
||
}
|
||
|
||
my $nameattr = { %{ $nameattr{$func}||{} } }; # shallow clone
|
||
$nameattr->{class} ||= "func_g";
|
||
$nameattr->{onmouseover} ||= "s(this)";
|
||
$nameattr->{onmouseout} ||= "c()";
|
||
$nameattr->{onclick} ||= "zoom(this)";
|
||
$nameattr->{title} ||= $info;
|
||
$im->group_start($nameattr);
|
||
|
||
my $color;
|
||
if ($func eq "-") {
|
||
$color = $vdgrey;
|
||
} elsif (defined $delta) {
|
||
$color = color_scale($delta, $maxdelta);
|
||
} elsif ($palette) {
|
||
$color = color_map($colors, $func);
|
||
} else {
|
||
$color = color($colors, $hash, $func);
|
||
}
|
||
$im->filledRectangle($x1, $y1, $x2, $y2, $color, 'rx="2" ry="2"');
|
||
|
||
my $chars = int( ($x2 - $x1) / ($fontsize * $fontwidth));
|
||
my $text = "";
|
||
if ($chars >= 3) { # room for one char plus two dots
|
||
$func =~ s/_\[[kwi]\]$//; # strip any annotation
|
||
$text = substr $func, 0, $chars;
|
||
substr($text, -2, 2) = ".." if $chars < length $func;
|
||
$text =~ s/&/&/g;
|
||
$text =~ s/</</g;
|
||
$text =~ s/>/>/g;
|
||
}
|
||
$im->stringTTF($black, $fonttype, $fontsize, 0.0, $x1 + 3, 3 + ($y1 + $y2) / 2, $text, "");
|
||
|
||
$im->group_end($nameattr);
|
||
}
|
||
|
||
print $im->svg;
|
||
|
||
if ($palette) {
|
||
write_palette();
|
||
}
|
||
|
||
# vim: ts=8 sts=8 sw=8 noexpandtab
|