view: more culling for search threads

[public-inbox.git] / lib / PublicInbox / View.pm

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 5ddb8425029c332380447691c2fde6caf24ec477..cd125e008c08ffe4c6178a60de79531241a4d179 100644 (file)
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -219,7 +219,10 @@ sub index_entry {
        $rv .= _th_index_lite($mid_raw, \$irt, $id, $ctx);
        my @tocc;
        my $ds = $smsg->ds; # for v1 non-Xapian/SQLite users
-       my $mime = delete $smsg->{mime}; # critical to memory use
+       # deleting {mime} is critical to memory use,
+       # the rest of the fields saves about 400K as we iterate across 1K msgs
+       my ($mime) = delete @$smsg{qw(mime ds ts blob subject)};
+
        my $hdr = $mime->header_obj;
        my $from = _hdr_names_html($hdr, 'From');
        obfuscate_addrs($obfs_ibx, $from) if $obfs_ibx;
@@ -311,7 +314,10 @@ sub _th_index_lite {
        my $nr_s = 0;
        my $siblings;
        if (my $smsg = $node->{smsg}) {
-               ($$irt) = (($smsg->{references} || '') =~ m/<([^>]+)>\z/);
+               # delete saves about 200KB on a 1K message thread
+               if (my $refs = delete $smsg->{references}) {
+                       ($$irt) = ($refs =~ m/<([^>]+)>\z/);
+               }
        }
        my $irt_map = $mapping->{$$irt} if defined $$irt;
        if (defined $irt_map) {