www: switch to zadd for the majority of buffering

This allows us to focus string concatenations in one place to
allow Perl internal scratchpad optimizations to reuse memory.

Calling Compress::Raw::Zlib::deflate repeatedly proves too
expensive in terms of CPU cycles.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
index e0404e5f..b18947ee 100644
--- a/lib/PublicInbox/SearchView.pm
+++ b/lib/PublicInbox/SearchView.pm
@@ -331,7 +331,7 @@ sub mset_thread {
 # callback for PublicInbox::WwwStream::getline
 sub mset_thread_i {
         my ($ctx, $eml) = @_;
-        $ctx->zmore($ctx->html_top) if exists $ctx->{-html_tip};
+        $ctx->zadd($ctx->html_top) if exists $ctx->{-html_tip};
         $eml and return PublicInbox::View::eml_entry($ctx, $eml);
         my $smsg = shift @{$ctx->{msgs}} or
                 $ctx->zmore(${delete($ctx->{skel})});