2020-12-28 15:15:37 +00:00
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#!/usr/bin/env perl
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# Parse a massif.out.xxx file and output peak total memory usage
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2021-03-06 00:41:47 +00:00
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#
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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#
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# This file is provided under the Apache License 2.0, or the
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# GNU General Public License v2.0 or later.
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#
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# **********
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# Apache License 2.0:
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# **********
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#
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# **********
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# GNU General Public License v2.0 or later:
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# **********
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2020-12-28 15:15:37 +00:00
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use warnings;
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use strict;
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use utf8;
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use open qw(:std utf8);
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die unless @ARGV == 1;
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my @snaps;
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open my $fh, '<', $ARGV[0] or die;
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{ local $/ = 'snapshot='; @snaps = <$fh>; }
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close $fh or die;
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my ($max, $max_heap, $max_he, $max_stack) = (0, 0, 0, 0);
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for (@snaps)
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{
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my ($heap, $heap_extra, $stack) = m{
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mem_heap_B=(\d+)\n
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mem_heap_extra_B=(\d+)\n
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mem_stacks_B=(\d+)
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}xm;
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next unless defined $heap;
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my $total = $heap + $heap_extra + $stack;
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if( $total > $max ) {
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($max, $max_heap, $max_he, $max_stack) = ($total, $heap, $heap_extra, $stack);
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}
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}
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printf "$max (heap $max_heap+$max_he, stack $max_stack)\n";
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