updates scc and adds simspeed test

tests/CMakeLists.txt

@@ -9,6 +9,7 @@ add_subdirectory(configuration)
 add_subdirectory(configurer)
 add_subdirectory(sc_fixed_tracing)
 add_subdirectory(cxs_tlm)
+add_subdirectory(sim_speed)
 if(FULL_TEST_SUITE)
 	add_subdirectory(sim_performance)
 endif()

tests/sim_speed/CMakeLists.txt

@@ -0,0 +1,3 @@
+project (sim_speed)
+add_executable(${PROJECT_NAME} sc_main.cpp)
+target_link_libraries (${PROJECT_NAME} LINK_PUBLIC scc-sysc)

tests/sim_speed/sc_main.cpp

@@ -0,0 +1,24 @@
+#include <chrono>
+#include <stdint.h>
+#include <systemc>
+
+using namespace sc_core;
+
+int sc_main(int argc, char* argv[]) {
+    const uint64_t NS_VAL = 100000000;
+
+    sc_clock clk("clk", 1, SC_NS);
+    sc_time run_time(NS_VAL, SC_NS);
+
+    auto start = std::chrono::high_resolution_clock::now();
+    sc_start(run_time);
+    auto end = std::chrono::high_resolution_clock::now();
+    auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
+
+    double simulated_cycles = (double)NS_VAL;
+    double real_us = duration.count();
+    double speed_Mhz = simulated_cycles / real_us;
+    std::cout << "Simulation speed: " << speed_Mhz << " MHz\n";
+
+    return 0;
+}