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101 lines
3.1 KiB
Perl
Executable File
101 lines
3.1 KiB
Perl
Executable File
#!/usr/bin/perl
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# split-profile.pl Documentation:
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#
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# This script uses jprof's includes (-i) and excludes (-e) options to
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# split profiles into segments. It takes as input a single text file,
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# and from that text file creates a series of jprof profiles in the
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# directory in which it is run. It expects the application binaries
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# with which the profile was made, including jprof, and the jprof
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# profile data, to be in a directory called "bin" that is a subdirectory
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# of the current directory, and it will output the profiles into the
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# current directory.
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#
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# The input file format looks like the following:
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#
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# poll g_main_poll
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# GetRuleCascade CSSRuleProcessor::GetRuleCascade(nsPresContext *, nsIAtom *)
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# RuleProcessorData RuleProcessorData::RuleProcessorData(nsPresContext *, nsIContent *, nsRuleWalker *, nsCompatibility *)
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#
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# From this input file, the script will construct a profile called
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# 00.html that contains the whole profile, a profile called 01-poll.html
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# that includes only stacks with g_main_poll, a profile called
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# 02-GetRuleCascade.html that includes only stacks that have
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# GetRuleCascade and do not have g_main_poll, a profile called
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# 03-RuleProcessorData.html that includes only stacks that have the
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# RuleProcessorData constructor and do not have GetRuleCascade or
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# g_main_poll, and a profile called 04.html that includes only stacks
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# that do not have any of the three functions in them.
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#
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# This means that all of the segments of the profile, except 00.html,
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# are mutually exclusive. Thus clever ordering of the functions in the
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# input file can lead to a logical splitting of the profile into
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# segments.
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use strict;
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my @names;
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my @sigs;
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sub read_info($) {
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my ($fname) = @_;
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open(INFO, "<$fname");
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my $i = 0;
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while (<INFO>) {
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chop;
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my $line = $_;
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my $idx = index($line, " ");
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my $name = substr($line, 0, $idx);
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my $sig = substr($line, $idx+1);
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$names[$i] = $name;
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$sigs[$i] = $sig;
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++$i;
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}
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}
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sub run_profile($$) {
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my ($options, $outfile) = @_;
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print "./jprof$options mozilla-bin jprof-log > ../$outfile.html\n";
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system "./jprof$options mozilla-bin jprof-log > ../$outfile.html";
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}
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sub run_profiles() {
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run_profile("", "00");
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for (my $i = 0; $i <= $#names + 1; ++$i) {
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my $options = "";
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for (my $j = 0; $j < $i; ++$j) {
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$options .= " -e\"$sigs[$j]\"";
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}
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if ($i <= $#names) {
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$options .= " -i\"$sigs[$i]\"";
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}
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my $num;
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my $n = $i + 1;
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if ($n < 10) {
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$num = "0$n";
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} else {
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$num = "$n";
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}
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if ($i <= $#names) {
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run_profile($options, "$num-$names[$i]");
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} else {
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run_profile($options, "$num");
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}
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}
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}
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($#ARGV == 0) || die "Usage: split-profile.pl <info-file>\n";
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read_info($ARGV[0]);
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chdir "bin" || die "Can't change directory to bin.";
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run_profiles();
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