Squashed 'Sources/mbedTLS/' content from commit 432b4b7989

git-subtree-dir: Sources/mbedTLS
git-subtree-split: 432b4b7989445a34940658e45557072e6e782d62

scripts/massif_max.pl

@@ -0,0 +1,33 @@
+#!/usr/bin/env 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, $max_heap, $max_he, $max_stack) = (0, 0, 0, 0);
+for (@snaps)
+{
+    my ($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;
+    if( $total > $max ) {
+        ($max, $max_heap, $max_he, $max_stack) = ($total, $heap, $heap_extra, $stack);
+    }
+}
+
+printf "$max (heap $max_heap+$max_he, stack $max_stack)\n";