diff --git a/internal/ttlcache/utils_test.go b/internal/ttlcache/utils_test.go
index 5f9c88f..7d395e9 100644
--- a/internal/ttlcache/utils_test.go
+++ b/internal/ttlcache/utils_test.go
@@ -1,6 +1,7 @@
 package ttlcache
 
 import (
+	"github.com/cespare/xxhash/v2"
 	"runtime"
 	"testing"
 )
@@ -11,3 +12,10 @@ func BenchmarkHashKey(b *testing.B) {
 		HashKey([]byte("HELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLD"))
 	}
 }
+
+func BenchmarkHashKey2(b *testing.B) {
+	runtime.GOMAXPROCS(1)
+	for i := 0; i < b.N; i++ {
+		xxhash.Sum64String("HELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLD")
+	}
+}