The Tor Browser: xpcom/tools/analyze-xpcom-log.pl@b8a032363ba2 (annotated)

xpcom/tools/analyze-xpcom-log.pl@b8a032363ba2 (annotated)

xpcom/tools/analyze-xpcom-log.pl

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 #!/usr/local/bin/perl -w
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 # Perl script to analyze the xpcom output file
 #
 # To create xpcom output file :
 #
 # setenv NSPR_LOG_MODULES nsComponentManager:5
 # setenv NSPR_LOG_FILE xpcom.out
 # ./mozilla
 #
 # Also to try to convert CID -> contractID this program looks for
 # a file reg.out in the current directory. To generate this file
 #
 # $ regExport > reg.out
 #
 # Usage: analyze-xpcom-log.pl < xpcom.out
 # [does better if ./reg.out is available]
 #
 # Suresh Duddi <dpsuresh@netscape.net>
 use strict;
 # forward declarations
 sub getContractID($);
 sub sum($);
 # Configuration parameters
 # Print all ?
 my $all = 0;
 # hash of cid -> contractid
 my %contractid;
 my %contractid_n;
 my %failedContractid_n;
 # count of instances of objects created
 my (%objs, %objs_contractid, %failedObjs) = ();
 # dlls loaded
 my @dlls;
 # temporaries
 my ($cid, $n, $str);
 while (<>) {
     chomp;
     # dlls loaded
     if (/loading \"(.*)\"/) {
         push @dlls, $1;
         next;
     }
     # FAILED ContractIDToClassID
     if (/ContractIDToClassID\((.*)\).*\[FAILED\]/) {
         $failedContractid_n{$1}++;
         next;
     }
     # ContractIDToClassID
     if (/ContractIDToClassID\((.*)\).*\{(.*)\}/) {
         $contractid{$2} = $1;
         $contractid_n{$2}++;
         next;
     }
     # CreateInstance()
     if (/CreateInstance\(\{(.*)\}\) succeeded/) {
         $objs{$1}++;
         next;
     }
     # CreateInstanceByContractID()
     if (/CreateInstanceByContractID\((.*)\) succeeded/) {
         $objs_contractid{$1}++;
         next;
     }
     # FAILED CreateInstance()
     if (/CreateInstance\(\{(.*)\}\) FAILED/) {
         $failedObjs{$1}++;
         next;
     }
 }
 # if there is a file named reg.out in the current dir
 # then use that to fill in the ContractIDToClassID mapping.
 my $REG;
 open REG, "<reg.out";
 while (<REG>) {
     chomp;
     if (/contractID -  (.*)$/) {
         my $id = $1;
         $cid = <REG>;
         chomp($cid);
         $cid =~ s/^.*\{(.*)\}.*$/$1/;
         $contractid{$cid} = $id;
     }
 }
 # print results
 # ----------------------------------------------------------------------
 # dlls loaded
 print "dlls loaded [", scalar @dlls, "]\n";
 print "----------------------------------------------------------------------\n";
 for ($n = 0; $n < scalar @dlls; $n++) {
     printf "%2d. %s\n", $n+1, $dlls[$n];
 }
 print "\n";
 # Objects created
 print "Object creations from CID [", sum(\%objs), "]\n";
 print "----------------------------------------------------------------------\n";
 foreach $cid (sort {$objs{$b} <=> $objs{$a} } keys %objs) {
     last if (!$all && $objs{$cid} < 50);
     printf "%5d. %s - %s\n", $objs{$cid}, $cid, getContractID($cid);
 }
 print "\n";
 print "Object creations from ContractID [", sum(\%objs_contractid), "]\n";
 print "----------------------------------------------------------------------\n";
 foreach $cid (sort {$objs_contractid{$b} <=> $objs_contractid{$a} } keys %objs_contractid) {
     last if (!$all && $objs_contractid{$cid} < 50);
     printf "%5d. %s - %s\n", $objs_contractid{$cid}, $cid, getContractID($cid);
 }
 print "\n";
 # FAILED Objects created
 print "FAILED Objects creations [", sum(\%failedObjs), "]\n";
 print "----------------------------------------------------------------------\n";
 foreach $cid (sort {$failedObjs{$b} <=> $failedObjs{$a} } keys %failedObjs) {
     last if (!$all && $failedObjs{$cid} < 50);
     printf "%5d. %s - %s", $failedObjs{$cid}, $cid, getContractID($cid);
 }
 print "\n";
 # ContractIDToClassID calls
 print "ContractIDToClassID() calls [", sum(\%contractid_n),"]\n";
 print "----------------------------------------------------------------------\n";
 foreach $cid (sort {$contractid_n{$b} <=> $contractid_n{$a} } keys %contractid_n) {
     last if (!$all && $contractid_n{$cid} < 50);
     printf "%5d. %s - %s\n", $contractid_n{$cid}, $cid, getContractID($cid);
 }
 print "\n";
 # FAILED ContractIDToClassID calls
 print "FAILED ContractIDToClassID() calls [", sum(\%failedContractid_n), "]\n";
 print "----------------------------------------------------------------------\n";
 foreach $cid (sort {$failedContractid_n{$b} <=> $failedContractid_n{$a} } keys %failedContractid_n) {
     last if (!$all && $failedContractid_n{$cid} < 50);
     printf "%5d. %s\n", $failedContractid_n{$cid}, $cid;
 }
 print "\n";
 # Subroutines
 sub getContractID($) {
     my $cid = shift;
     my $ret = "";
     $ret = $contractid{$cid} if (exists $contractid{$cid});
     return $ret;
 }
 sub sum($) {
     my $hash_ref = shift;
     my %hash = %$hash_ref;
     my $total = 0;
     my $key;
     foreach $key (keys %hash) {
         $total += $hash{$key};
     }
     return $total;
 }

The Tor Browser / annotate

xpcom/tools/analyze-xpcom-log.pl@b8a032363ba2 (annotated)

xpcom/tools/analyze-xpcom-log.pl