2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
6 # Read a memtrace logfile from stdin and group memory allocations by logical
7 # code component. The code component is guessed from the callstack, and
8 # is something like {v8, sqlite, disk cache, skia, etc..}
14 # [STDIN] -- The memwatcher.logXXXX file to summarize.
25 ($bytes, $loc) = ($line =~ m/[ \t]*([0-9]*)[ \t]*[0-9\.%]*[ \t]*(.*)/);
30 last if $cont =~ m/=====/;
33 my $location_blame = "";
35 # print "Found: $bytes, $loc\n";
37 if ($loc =~ m/v8::internal::Snapshot::Deserialize/) {
38 $location_blame = "v8 Snapshot Deserialize";
39 } elsif ($loc =~ m/RenderStyle::create/) {
40 $location_blame = "RenderStyle::create";
41 } elsif ($loc =~ m/v8::internal::OldSpace::SlowAllocateRaw/) {
42 $location_blame = "v8 OldSpace";
43 } elsif ($loc =~ m/sqlite/) {
44 $location_blame = "sqlite";
45 } elsif ($loc =~ m/ TransportDIB::Map/) {
46 $location_blame = "Shared Memory Backing Store";
47 } elsif ($loc =~ m/imagedecoder/) {
48 $location_blame = "img decoder";
49 } elsif ($loc =~ m/SkBitmap/) {
50 $location_blame = "skia";
51 } elsif ($loc =~ m/disk_cache/) {
52 $location_blame = "disk cache";
53 } elsif ($loc =~ m/skia/) {
54 $location_blame = "skia";
55 } elsif ($loc =~ m/:WSA/) {
56 $location_blame = "net";
57 } elsif ($loc =~ m/dns/) {
58 $location_blame = "net";
59 } elsif ($loc =~ m/trunk\\net/) {
60 $location_blame = "net";
61 } elsif ($loc =~ m/WinHttp/) {
62 $location_blame = "WinHttp";
63 } elsif ($loc =~ m/:I_Crypt/) {
64 $location_blame = "WinHttpSSL";
65 } elsif ($loc =~ m/CryptGetTls/) {
66 $location_blame = "WinHttpSSL";
67 } elsif ($loc =~ m/WinVerifyTrust/) {
68 $location_blame = "WinHttpSSL";
69 } elsif ($loc =~ m/Cert/) {
70 $location_blame = "WinHttpSSL";
71 } elsif ($loc =~ m/plugin/) {
72 $location_blame = "plugin";
73 } elsif ($loc =~ m/NP_/) {
74 $location_blame = "plugin";
75 } elsif ($loc =~ m/hunspell/) {
76 $location_blame = "hunspell";
77 } elsif ($loc =~ m/TextCodec/) {
78 $location_blame = "fonts";
79 } elsif ($loc =~ m/glyph/) {
80 $location_blame = "fonts";
81 } elsif ($loc =~ m/cssparser/) {
82 $location_blame = "webkit css";
83 } elsif ($loc =~ m/::CSS/) {
84 $location_blame = "webkit css";
85 } elsif ($loc =~ m/Arena/) {
86 $location_blame = "webkit arenas";
87 } elsif ($loc =~ m/WebCore::.*ResourceLoader::addData/) {
88 $location_blame = "WebCore *ResourceLoader addData";
89 } elsif ($loc =~ m/OnUpdateVisitedLinks/) {
90 $location_blame = "OnUpdateVisitedLinks";
91 } elsif ($loc =~ m/IPC/) {
92 $location_blame = "ipc";
93 } elsif ($loc =~ m/trunk\\chrome\\browser/) {
94 $location_blame = "browser";
95 } elsif ($loc =~ m/trunk\\chrome\\renderer/) {
96 $location_blame = "renderer";
97 } elsif ($loc =~ m/webcore\\html/) {
98 $location_blame = "webkit webcore html";
99 } elsif ($loc =~ m/webkit.*string/) {
100 $location_blame = "webkit strings";
101 } elsif ($loc =~ m/htmltokenizer/) {
102 $location_blame = "webkit HTMLTokenizer";
103 } elsif ($loc =~ m/javascriptcore/) {
104 $location_blame = "webkit javascriptcore";
105 } elsif ($loc =~ m/webkit/) {
106 $location_blame = "webkit other";
107 } elsif ($loc =~ m/safe_browsing/) {
108 $location_blame = "safe_browsing";
109 } elsif ($loc =~ m/VisitedLinkMaster/) {
110 $location_blame = "VisitedLinkMaster";
111 } elsif ($loc =~ m/NewDOMUI/) {
112 $location_blame = "NewDOMUI";
113 } elsif ($loc =~ m/RegistryControlledDomainService/) {
114 $location_blame = "RegistryControlledDomainService";
115 } elsif ($loc =~ m/URLRequestChromeJob::DataAvailable/) {
116 $location_blame = "URLRequestChromeJob DataAvailable";
117 } elsif ($loc =~ m/history_publisher/) {
118 $location_blame = "history publisher";
120 $location_blame = "unknown";
123 # Surface large outliers in an "interesting" group.
124 my $interesting_group = "unknown";
125 my $interesting_size = 10000000; # Make this smaller as needed.
126 # TODO(jar): Add this as a pair of shell arguments.
127 if ($bytes > $interesting_size && $location_blame eq $interesting_group) {
128 # Create a special group for the exact stack that contributed so much.
129 $location_blame = $loc;
132 $total_bytes += $bytes;
133 $leaks{$location_blame} += $bytes;
136 # now dump our hash table
138 my @keys = sort { $leaks{$b} <=> $leaks{$a} }keys %leaks;
139 for ($i=0; $i<@keys; $i++) {
141 printf "%11s\t(%3.2f%%)\t%s\n", comma_print($leaks{$key}), (100* $leaks{$key} / $total_bytes), $key;
142 $sum += $leaks{$key};
144 printf("TOTAL: %s\n", comma_print($sum));
147 # Insert commas into an integer after each three digits for printing.
150 $num =~ s/(\d{1,3}?)(?=(\d{3})+$)/$1,/g;
154 # ----- Main ------------------------------------------------