Introduce benchmark support using Google Benchmark

CMakeLists.txt

@@ -90,6 +90,7 @@ set(DRAMSYS_EXTENSIONS_DIR  "${CMAKE_CURRENT_SOURCE_DIR}/extensions")
 
 ### Build options ###
 option(DRAMSYS_BUILD_TESTS "Build DRAMSys unit tests" OFF)
+option(DRAMSYS_BUILD_BENCHMARKS "Build DRAMSys benchmarks" OFF)
 option(DRAMSYS_VERBOSE_CMAKE_OUTPUT "Show detailed CMake output" OFF)
 option(DRAMSYS_BUILD_CLI "Build DRAMSys Command Line Tool" ON)
 option(DRAMSYS_WITH_DRAMPOWER "Build with DRAMPower support enabled." OFF)
@@ -125,6 +126,18 @@ if(DRAMSYS_BUILD_TESTS)
     set_target_properties(gtest_main PROPERTIES FOLDER lib/gtest)
 endif()
 
+### GoogleBenchmark ###
+if(DRAMSYS_BUILD_BENCHMARKS)
+    set(BENCHMARK_ENABLE_TESTING OFF)
+
+    FetchContent_Declare(
+        benchmark
+        URL https://github.com/google/benchmark/archive/refs/tags/v1.8.3.zip
+    )
+
+    FetchContent_MakeAvailable(benchmark)
+endif()
+
 ### SystemC ###
 if (DRAMSYS_USE_EXTERNAL_SYSTEMC)
     list(APPEND CMAKE_PREFIX_PATH $ENV{SYSTEMC_HOME} /opt/systemc)
@@ -179,3 +192,11 @@ if(DRAMSYS_BUILD_TESTS)
     include(CTest)
     add_subdirectory(tests)
 endif()
+
+###############################################
+###         Benchmark Directory             ###
+###############################################
+
+if(DRAMSYS_BUILD_BENCHMARKS) 
+    add_subdirectory(benches)
+endif()