xt/perf-msgview: update to use git->cat_async

It's about 5-10% faster on an SMP machine with an SSD,
even on a hot Linux page cache.

diff --git a/xt/perf-msgview.t b/xt/perf-msgview.t
index 3ea92ec67f063879dc58871fe9de27c16a90c5a6..a4445959406ae948ee0e124c003871c2b59cd23c 100644 (file)
--- a/xt/perf-msgview.t
+++ b/xt/perf-msgview.t
@@ -32,22 +32,30 @@ my $ctx = {
        -inbox => $ibx,
        www => Plack::Util::inline_object(style => sub {''}),
 };
-my ($str, $mime, $res, $cmt, $type);
+my ($mime, $res, $oid, $type);
 my $n = 0;
+my $obuf = '';
+my $m = 0;
+
+my $cb = sub {
+       $mime = PublicInbox::MIME->new(shift);
+       PublicInbox::View::multipart_text_as_html($mime, $ctx);
+       ++$m;
+       $obuf = '';
+};
+
+$git->cat_async_begin;
 my $t = timeit(1, sub {
-       my $obuf = '';
        $ctx->{obuf} = \$obuf;
        $ctx->{mhref} = '../';
        while (<$fh>) {
-               ($cmt, $type) = split / /;
+               ($oid, $type) = split / /;
                next if $type ne 'blob';
                ++$n;
-               $str = $git->cat_file($cmt);
-               $mime = PublicInbox::MIME->new($str);
-               PublicInbox::View::multipart_text_as_html($mime, $ctx);
-               $obuf = '';
+               $git->cat_async($oid, $cb);
        }
+       $git->cat_async_wait;
 });
-diag 'multipart_text_as_html took '.timestr($t)." for $n messages";
-ok 1;
+diag 'multipart_text_as_html took '.timestr($t)." for $n <=> $m messages";
+is($m, $n, 'rendered all messages');
 done_testing();