diff --git a/sandbox/get_inflated_columns_all.pl b/sandbox/get_inflated_columns_all.pl
new file mode 100644
index 0000000000..c0a560a668
--- /dev/null
+++ b/sandbox/get_inflated_columns_all.pl
@@ -0,0 +1,57 @@
+#!/usr/bin/perl
+
+use strict;
+
+use Data::Dumper;
+use NGCP::Schema;
+use NGCP::Panel::Utils::Preferences;
+use NGCP::Panel::Utils::Generic qw(:all);
+use Safe::Isa qw($_isa);
+
+my $logger = Log::Log4perl->get_logger('NGCP::Panel');
+my $schema = NGCP::Schema->connect();
+my $dbh = $schema->storage->dbh;
+use Test::MockObject;
+my $c_mock = Test::MockObject->new();
+my $user_mock = Test::MockObject->new();
+$user_mock->set_always( 'roles' => 'reseller' );
+$c_mock->set_always( 'log' => $logger )->set_always( 'model' => $schema )->set_always( 'user' => $user_mock );
+
+
+
+my $cnt = 1000;
+my $devmod_id = 1;
+
+
+my $time = time;
+for(my $i=0; $i<$cnt; $i++){
+    my $dev_pref_rs = NGCP::Panel::Utils::Preferences::get_preferences_rs(
+        c => $c_mock,
+        type => 'dev',
+        id =>  $devmod_id,
+    );
+    my $pref_values = get_inflated_columns_all($dev_pref_rs,'hash' => 'attribute', 'column' => 'value', 'force_array' => 1);
+}
+print "pure.time=".(time-$time).";\n";
+
+my $time = time;
+for(my $i=0; $i<$cnt; $i++){
+    my $devprof_pref_rs = $c_mock->model('DB')
+        ->resultset('voip_preferences')
+        ->search({
+            'profile.id' => $devmod_id,
+        },{
+            prefetch => {'voip_devprof_preferences' => 'profile'},
+    });
+    my %pref_values;
+    foreach my $value($devprof_pref_rs->all) {
+        $pref_values{$value->attribute} =
+            [ map {$_->value} $value->voip_devprof_preferences->all ];
+    }
+}
+print "DBIx.time=".(time-$time).";\n";
+
+#pure.time=5;
+#DBIx.time=14;
+r
+1;
\ No newline at end of file