diff --git a/benchmarks/ScopedDecayTimeRestorer.h b/benchmarks/ScopedDecayTimeRestorer.h
new file mode 100644
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--- /dev/null
+++ b/benchmarks/ScopedDecayTimeRestorer.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <malloc.h>
+
+#if defined(__BIONIC__)
+
+#include "platform/bionic/malloc.h"
+
+class ScopedDecayTimeRestorer {
+ public:
+  ScopedDecayTimeRestorer() {
+    bool value;
+    if (android_mallopt(M_GET_DECAY_TIME_ENABLED, &value, sizeof(value))) {
+      saved_value_ = value ? 1 : 0;
+    }
+  }
+
+  virtual ~ScopedDecayTimeRestorer() { mallopt(M_DECAY_TIME, saved_value_); }
+
+ private:
+  int saved_value_ = 0;
+};
+
+#endif