diff --git a/test/microbench/test/common.cc b/test/microbench/test/common.cc
index 056312cdf349aefd2f09af25a1bbf8f31d9e4d8b..ae5e7e16a43fce54fd157be4a8239170d1c7c2b6 100644
--- a/test/microbench/test/common.cc
+++ b/test/microbench/test/common.cc
@@ -590,7 +590,7 @@ static void BM_calculate_pi(benchmark::State& state) {
         benchmark::DoNotOptimize(pi = test_calculate_pi(static_cast<int>(depth)));
     }
 
-#if 1
+#if 0
     std::stringstream ss;
     ss << pi;
     state.SetLabel(ss.str());
@@ -600,4 +600,28 @@ static void BM_calculate_pi(benchmark::State& state) {
 BENCHMARK(BM_calculate_pi);
 // BENCHMARK(BM_calculate_pi)->ThreadPerCpu();
 
+// Ref: benchmark/test/benchmark_test.cc
+int BENCHMARK_NOINLINE test_factorial(int n) {
+    register int ret = 0;
+    benchmark::DoNotOptimize(ret = (n == 1) ? 1 : n * test_factorial(n - 1));
+    return ret;
+}
+
+static void BM_factorial(benchmark::State& state) {
+    register int fac_42 = 0;
+    register int n = 8;
+    for (auto _ : state) {
+        benchmark_DoNotOptimize();
+        fac_42 = test_factorial(n);
+    }
+    // Prevent compiler optimizations
+#if 0
+    std::stringstream ss;
+    ss << fac_42;
+    state.SetLabel(ss.str());
+#endif
+}
+BENCHMARK(BM_factorial);
+//BENCHMARK(BM_factorial)->ThreadPerCpu();
+
 BENCHMARK_MAIN();