1 files changed, 35 insertions, 0 deletions
diff --git a/xt/perf-imap-list.t b/xt/perf-imap-list.t
new file mode 100644
index 00000000..37640a90
--- /dev/null
+++ b/xt/perf-imap-list.t
@@ -0,0 +1,35 @@
+#!perl -w
+# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use Test::More;
+use_ok 'PublicInbox::IMAP';
+use_ok 'PublicInbox::IMAPD';
+use PublicInbox::DS;
+use Benchmark qw(:all);
+my @n = map { { newsgroup => "inbox.comp.foo.bar.$_" } } (0..50000);
+push @n, map { { newsgroup => "xobni.womp.foo.bar.$_" } } (0..50000);
+my $self = { imapd => { grouplist => \@n } };
+PublicInbox::IMAPD::refresh_inboxlist($self->{imapd});
+
+my $n = scalar @n;
+open my $null, '>', '/dev/null' or BAIL_OUT "open: $!";
+my $ds = { sock => $null };
+my $nr = 200;
+diag "starting benchmark...";
+my $cmd_list = \&PublicInbox::IMAP::cmd_list;
+my $t = timeit(1, sub {
+        for (0..$nr) {
+                my $res = $cmd_list->($self, 'tag', '', '*');
+                PublicInbox::DS::write($ds, $res);
+        }
+});
+diag timestr($t). "list all for $n inboxes $nr times";
+$nr = 20;
+$t = timeit(1, sub {
+        for (0..$nr) {
+                my $res = $cmd_list->($self, 'tag', 'inbox.', '%');
+                PublicInbox::DS::write($ds, $res);
+        }
+});
+diag timestr($t). "list partial for $n inboxes $nr times";
+done_testing;