зеркало из https://github.com/mozilla/pjs.git
82 строки
2.3 KiB
Perl
Executable File
82 строки
2.3 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
#
|
|
# The contents of this file are subject to the Mozilla Public
|
|
# License Version 1.1 (the "License"); you may not use this file
|
|
# except in compliance with the License. You may obtain a copy of
|
|
# the License at http://www.mozilla.org/MPL/
|
|
#
|
|
# Software distributed under the License is distributed on an "AS
|
|
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
|
|
# implied. See the License for the specific language governing
|
|
# rights and limitations under the License.
|
|
#
|
|
# The Original Code is histogram.pl, released Nov 27, 2000.
|
|
#
|
|
# The Initial Developer of the Original Code is Netscape
|
|
# Communications Corporation. Portions created by Netscape are
|
|
# Copyright (C) 2000 Netscape Communications Corporation. All
|
|
# Rights Reserved.
|
|
#
|
|
# Contributor(s):
|
|
# Chris Waterson <waterson@netscape.com>
|
|
#
|
|
# This program produces a ``class histogram'' of the live objects, one
|
|
# line per class, with the total number of objects allocated, and
|
|
# total number of bytes attributed to those objects.
|
|
#
|
|
|
|
use 5.004;
|
|
use strict;
|
|
use Getopt::Long;
|
|
|
|
# So we can find TraceMalloc.pm
|
|
use FindBin;
|
|
use lib "$FindBin::Bin";
|
|
|
|
use TraceMalloc;
|
|
|
|
# Collect program options
|
|
$::opt_help = 0;
|
|
$::opt_types = "${FindBin::Bin}/types.dat";
|
|
|
|
GetOptions("help", "types=s");
|
|
|
|
if ($::opt_help) {
|
|
die "usage: histogram.pl [options] <dumpfile>
|
|
--help Display this message
|
|
--types=<file> Read type heuristics from <file>";
|
|
}
|
|
|
|
# Initialize type inference juju from the type file specified by
|
|
# ``--types''.
|
|
if ($::opt_types) {
|
|
TraceMalloc::init_type_inference($::opt_types);
|
|
}
|
|
|
|
# Read the dump file, collecting count and size information for each
|
|
# object that's detected.
|
|
|
|
# This'll hold a record for each class that we detect
|
|
$::Classes = { };
|
|
|
|
sub collect_objects($) {
|
|
my ($object) = @_;
|
|
my $type = $object->{'type'};
|
|
|
|
my $entry = $::Classes{$type};
|
|
if (! $entry) {
|
|
$entry = $::Classes{$type} = { '#count#' => 0, '#bytes#' => 0 };
|
|
}
|
|
|
|
$entry->{'#count#'} += 1;
|
|
$entry->{'#bytes#'} += $object->{'size'};
|
|
}
|
|
|
|
TraceMalloc::read(\&collect_objects);
|
|
|
|
# Print one line per class, sorted with the classes that accumulated
|
|
# the most bytes first.
|
|
foreach my $class (sort { $::Classes{$b}->{'#bytes#'} <=> $::Classes{$a}->{'#bytes#'} } keys %::Classes) {
|
|
print "$class $::Classes{$class}->{'#count#'} $::Classes{$class}->{'#bytes#'}\n";
|
|
}
|