Ci performance

examples/SW/riscv_dhry/README.md

@@ -1,8 +1,13 @@
-# RISC-V Software Compilation for C++
+# Dhrystone benchmark for evaluating RISC-V compilers' performance
 
-This file contains ctr0, linker script, Makefile (originally from pulpino
-project) for simple RISC-V software compilation using C++. For instructions and more details, see `../riscv/README.md`.
+Header and modules present:
 
-### RISC-V target software
+  dhry.h
+  dhry_1.c
+  dhry_2.c
 
-The target software runs some basic C++ specific tests. Binary code and elf file will be located at `./build`.
+See: https://github.com/Keith-S-Thompson/dhrystone/tree/master/v2.1
+
+# Compilers whose performances are to be analyzed:
+
+GCC, TCC and LLVM

examples/bare_etiss_processor/main.cpp

@@ -43,7 +43,7 @@
 #include "TracePrinter.h"
 #include "etiss/SimpleMemSystem.h"
 #include "etiss/ETISS.h"
-void writeFileJson(float cpu_time, float simulation_time, float cpu_cycle, float mips, std::string valid_json_output_path);// Save the information in JSON format
+
 
 int main(int argc, const char *argv[])
 {
@@ -96,8 +96,6 @@ int main(int argc, const char *argv[])
     std::cout << "  Setting up CPUCore" << std::endl;
     // create a cpu core named core0 with the or1k architecture
     std::string CPUArchName = etiss::cfg().get<std::string>("arch.cpu", "");
-    std::string valid_json_output_path = etiss::cfg().get<std::string>("vp.stats_file_path", "");
-    bool output_json =   etiss::cfg().isSet("vp.stats_file_path");
     etiss::uint64 sa = etiss::cfg().get<uint64_t>("vp.entry_point", dsys.get_startaddr());
 	std::cout << "  CPU start address: 0x" << std::hex << sa << std::dec << std::endl;
     std::shared_ptr<etiss::CPUCore> cpu = etiss::CPUCore::create(CPUArchName, "core0");
@@ -142,21 +140,6 @@ int main(int argc, const char *argv[])
     //float endTime = (float)clock() / CLOCKS_PER_SEC;
     std::cout << "=== Simulation end ===" << std::endl << std::endl;
 
-     //calculations for json file output
-
-    ETISS_CPU *cpu_state = cpu->getState();
-
-    float cpu_time = cpu_state->cpuTime_ps / 1.0E12;
-    float simulation_time = cpu->endTime - cpu->startTime;
-    float cpu_cycle = cpu_state->cpuTime_ps / (float)cpu_state->cpuCycleTime_ps;
-    float mips = (cpu_state->cpuTime_ps / (float)cpu_state->cpuCycleTime_ps / simulation_time / 1.0E6);
-
-   //print out the simulation calculations via json file
-
-    if(output_json==true)
-    {
-        writeFileJson(cpu_time, simulation_time, cpu_cycle, mips, valid_json_output_path);
-    }
 
     // print the exception code returned by the cpu core
     std::cout << "CPU0 exited with exception: 0x" << std::hex << exception << std::dec << ": "
@@ -203,13 +186,5 @@ int main(int argc, const char *argv[])
         break;
     }
 }
-void writeFileJson(float cpu_time, float simulation_time, float cpu_cycle, float mips, std::string valid_json_output_path)// Save the information in JSON format
-{
-
-     std::ofstream json_output(valid_json_output_path);
-     json_output << "{\"mips\": " << mips << ", \"Simulation_Time\": " << simulation_time << ", \"CPU_Time\": " << cpu_time << ", \"CPU_cycle\": " << cpu_cycle << "}" << std::endl;
-
-}
-
 
 

src/CPUCore.cpp

@@ -54,7 +54,7 @@
 
 using namespace etiss;
 
-
+void writeFileJson(float cpu_time, float simulation_time, float cpu_cycle, float mips, std::string valid_json_output_path);// Save the information in JSON format
 
 /**
         @see etiss/CPUArch.h
@@ -845,12 +845,27 @@ etiss::int32 CPUCore::execute(ETISS_System &_system)
         cor_plugin->executionEnd(exception);
     }
 
-    // print some statistics
-    std::cout << "CPU Time: " << (cpu_->cpuTime_ps / 1.0E12) << "s    Simulation Time: " << (endTime - startTime) << "s"
+    // Defining the statistics of measurement and printing them
+    double cpu_time = cpu_->cpuTime_ps / 1.0E12;
+    double simulation_time = endTime - startTime;
+    double cpu_cycle = cpu_->cpuTime_ps / (float)cpu_->cpuCycleTime_ps;
+    double mips = cpu_->cpuTime_ps / (float)cpu_->cpuCycleTime_ps / simulation_time / 1.0E6;
+    std::cout << "CPU Time: " << (cpu_time) << "s    Simulation Time: " << (simulation_time) << "s"
               << std::endl;
-    std::cout << "CPU Cycles (estimated): " << (cpu_->cpuTime_ps / (float)cpu_->cpuCycleTime_ps) << std::endl;
-    std::cout << "MIPS (estimated): "
-              << (cpu_->cpuTime_ps / (float)cpu_->cpuCycleTime_ps / (endTime - startTime) / 1.0E6) << std::endl;
+    std::cout << "CPU Cycles (estimated): " << (cpu_cycle) << std::endl;
+    std::cout << "MIPS (estimated): " << (mips) << std::endl;
+
+
+    // declaring path of writing the json file contaiing performance metrics and the boolean which approves of writing the json output
+    std::string valid_json_output_path = etiss::cfg().get<std::string>("vp.stats_file_path", "");
+    bool output_json =   etiss::cfg().isSet("vp.stats_file_path");
+
+    if(output_json==true)
+    {
+        writeFileJson(cpu_time, simulation_time, cpu_cycle, mips, valid_json_output_path);
+    }
+
+
     etiss_uint64 max = 0;
     for (int i = 0; i < ETISS_MAX_RESOURCES; i++)
     {
@@ -923,3 +938,13 @@ etiss::int32 CPUCore::execute(ETISS_System &_system)
 }
 
 
+// Function to write the performance metrics of a run into a json file
+void writeFileJson(float cpu_time, float simulation_time, float cpu_cycle, float mips, std::string valid_json_output_path)// Save the information in JSON format
+{
+
+     std::ofstream json_output(valid_json_output_path);
+     json_output << "{\"mips\": " << mips << ", \"Simulation_Time\": " << simulation_time << ", \"CPU_Time\": " << cpu_time << ", \"CPU_cycle\": " << cpu_cycle << "}" << std::endl;
+
+}
+
+