Introduce benchmark support using Google Benchmark

benches/addressdecoder.cpp

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+/*
+ * Copyright (c) 2023, RPTU Kaiserslautern-Landau
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors:
+ *    Derek Christ
+ */
+
+#include "addressdecoder.h"
+
+#include <DRAMSys/config/AddressMapping.h>
+#include <DRAMSys/simulation/AddressDecoder.h>
+
+#include <benchmark/benchmark.h>
+#include <random>
+
+static DRAMSys::AddressDecoder addressDecoder()
+{
+    auto addressMapping = nlohmann::json::parse(addressMappingJsonString)
+                              .at("addressmapping")
+                              .get<DRAMSys::Config::AddressMapping>();
+    DRAMSys::AddressDecoder decoder(addressMapping);
+    return decoder;
+}
+
+static void decode(benchmark::State& state)
+{
+    auto decoder = addressDecoder();
+
+    std::default_random_engine engine;
+    std::uniform_int_distribution<uint64_t> distribution(0, decoder.maxAddress());
+
+    for (auto _ : state)
+    {
+        auto decodedAddress = decoder.decodeAddress(distribution(engine));
+        benchmark::DoNotOptimize(decodedAddress);
+    }
+}
+
+BENCHMARK(decode);
+
+int sc_main(int argc, char** argv)
+{
+    ::benchmark::Initialize(&argc, argv);
+    ::benchmark::RunSpecifiedBenchmarks();
+    return 0;
+}