mbedtls/scripts/massif_max.pl
2015-02-16 17:22:46 +00:00

31 lines
576 B
Perl
Executable file

#!/usr/bin/perl
# Parse a massif.out.xxx file and output peak total memory usage
use warnings;
use strict;
use utf8;
use open qw(:std utf8);
die unless @ARGV == 1;
my @snaps;
open my $fh, '<', $ARGV[0] or die;
{ local $/ = 'snapshot='; @snaps = <$fh>; }
close $fh or die;
my $max = 0;
for (@snaps)
{
my ($heap, $heap_extra, $stack) = m{
mem_heap_B=(\d+)\n
mem_heap_extra_B=(\d+)\n
mem_stacks_B=(\d+)
}xm;
next unless defined $heap;
my $total = $heap + $heap_extra + $stack;
$max = $total if $total > $max;
}
printf "$max\n";