remove diff output

it can be calculated on demand and will decrease storable size

diff --git a/script/vmstat.pl b/script/vmstat.pl
index f7c1703..1e871c8 100755 (executable)
--- a/script/vmstat.pl
+++ b/script/vmstat.pl
@@ -44,7 +44,7 @@ while(<$in>) {
        my @header = @{ $headers->{$#v} };
        foreach my $i ( 0 .. $#header ) {
                $item->{ $header[$i] } = $v[$i];
-               $item->{ $header[$i] . '.diff' } = $diff->[$i];
+#              $item->{ $header[$i] . '.diff' } = $diff->[$i];
                $item->{t} = time();
        }
        emit { item => $item };