1 files changed, 6 insertions, 0 deletions
diff --git a/t/perf/benchmarks b/t/perf/benchmarks
index c137d0c9ec..52e2af9400 100644
--- a/t/perf/benchmarks
+++ b/t/perf/benchmarks
@@ -69,5 +69,11 @@
         setup   => 'my ($x, $y)',
         code    => '($x, $y) = (1, 2)',
     },
+
+    'expr::index::utf8_postion_1' => {
+        desc    => 'index of a utf8 string, matching at position 1',
+        setup   => 'utf8::upgrade my $x = "abc"',
+        code    => 'index $x, "b"',
+    },
 ];