Add mbelshe's memwatcehr scripts to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@615 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 78 insertions, 0 deletions

diff --git a/tools/memory_watcher/scripts/memprof.pl b/tools/memory_watcher/scripts/memprof.pl
new file mode 100644
index 0000000..67c1997
--- /dev/null
+++ b/tools/memory_watcher/scripts/memprof.pl
@@ -0,0 +1,78 @@
+#!/usr/bin/perl
+
+sub process_raw($$) {
+  my $file = shift;
+  my $filter = shift;
+
+  my %leaks = ();
+  my %stackframes = ();
+
+  my $blamed = 0;
+  my $bytes = 0;
+  my $hits = 0;
+  open (LOGFILE, "$file") or die("could not open $file");
+  while(<LOGFILE>) {
+    my $line = $_;
+#print "$line";
+    chomp($line);
+    if ($line =~ m/([0-9]*) bytes, ([0-9]*) items/) {
+
+      # If we didn't find any frames to account this to, log that.
+      if ($blamed == 0) {
+        $leaks{"UNACCOUNTED"} += $bytes;
+      }
+
+#print "START\n";
+      #print("stackframe " . $1 . ", " . $2 . "\n");
+      $hits = $2;
+      $bytes = $1;
+      %stackframes = ();   # we have a new frame, clear the list.
+      $blamed = 0;         # we haven't blamed anyone yet
+    }
+    elsif ($line =~ m/Total Bytes:[ ]*([0-9]*)/) {
+      $total_bytes += $1;
+    }
+    elsif ($line =~ m/=============/) {
+      next;
+    }
+    elsif ($line =~ m/[ ]*([\-a-zA-Z_\\0-9\.]*) \(([0-9]*)\):[ ]*([<>_a-zA-Z_0-9:]*)/) {
+#      print("junk: " . $line . "\n");
+#    print("file: $1\n"); 
+#    print("line: $2\n"); 
+#    print("function: $3\n"); 
+#   
+      
+      # blame the function
+      my $pig = $3;
+#      my $pig = $1;
+
+      # only add the memory if this function is not yet on our callstack
+      if (!exists $stackframes{$pig}) {  
+        $leaks{$pig} += $bytes;
+      }
+
+      $stackframes{$pig}++;
+      $blamed++;
+    }
+  }
+
+  # now dump our hash table
+  my $sum = 0;
+  my @keys = keys(%leaks);
+  for ($i=0; $i<@keys; $i++) {
+    my $key = @keys[$i];
+    printf "%8d\t%3.2f%%\t%s\n", $leaks{$key}, (100* $leaks{$key} / $total_bytes), $key;
+    $sum += $leaks{$key};
+  }
+  print("TOTAL: $sum\n");
+}
+
+
+# ----- Main ------------------------------------------------
+
+# Get the command line argument
+my $filename = shift;
+my $filter = shift;
+
+# Process the file.
+process_raw($filename, $filter);