diff --git a/scripts/ilator/profile_ila_instr_log.py b/scripts/ilator/profile_ila_instr_log.py
new file mode 100644
index 000000000..2f6fd1c7a
--- /dev/null
+++ b/scripts/ilator/profile_ila_instr_log.py
@@ -0,0 +1,48 @@
+import sys
+
+from numpy.core.numeric import extend_all
+
+def profile_ila_log(fname, sortby="avg"):
+    logs = open(fname, "r").readlines()
+    unit = logs[0].split()[8]
+    total_time = dict()
+    num_cnt = dict()
+    avg_time = dict()
+    max_opname_len = 0
+    for line in logs:
+        split_line = line.split()
+        instr_name = split_line[3]
+        exec_time = split_line[7]
+        if instr_name in total_time:
+            num_cnt[instr_name] += 1
+            total_time[instr_name] += float(exec_time)
+        else:
+            num_cnt[instr_name] = 1
+            total_time[instr_name] = float(exec_time)
+    for key in total_time:
+        avg_time[key] = total_time[key] / num_cnt[key]
+        max_opname_len = max(len(key), max_opname_len)
+    if sortby == "avg":
+        print("sorted by avg exec_time")
+        sorted_instr = sorted(avg_time.items(), key=lambda x: x[1], reverse=True)
+    else:
+        print("sorted by total exec_time")
+        sorted_instr = sorted(total_time.items(), key=lambda x: x[1], reverse=True)
+
+    for i in sorted_instr:
+        print(
+            f"{i[0]: <{max_opname_len}}:\t" +
+            f"total exec_time: {total_time[i[0]]:.2f} {unit};\t" +
+            f"num count: {num_cnt[i[0]]};\t" +
+            f"avg. exec_time: {avg_time[i[0]]:.2f} {unit}" 
+        )
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python3 profile_ila_instr_log.py [file_path] [sortby]")
+        exit(0)
+    if len(sys.argv) == 3:
+        sortby = sys.argv[2]
+    else:
+        sortby = "avg"
+    profile_ila_log(sys.argv[1], sortby)
diff --git a/src/target-sc/ilator.cc b/src/target-sc/ilator.cc
index 4f76ffc93..6a28a8269 100644
--- a/src/target-sc/ilator.cc
+++ b/src/target-sc/ilator.cc
@@ -483,7 +483,8 @@ bool Ilator::GenerateExecuteKernel(const std::string& dir) {
   fmt::format_to( // headers
       buff,
       "#include <iomanip>\n"
-      "#include <{project}.h>\n",
+      "#include <{project}.h>\n"
+      "#include <chrono>\n", // add chrono to record time for debugging
       fmt::arg("project", GetProjectName()));
 
   fmt::format_to( // logging
@@ -495,9 +496,10 @@ bool Ilator::GenerateExecuteKernel(const std::string& dir) {
       "void {project}::IncrementInstrCntr() {{\n"
       "  instr_cntr++;\n"
       "}}\n"
-      "void {project}::LogInstrSequence(const std::string& instr_name) {{\n"
-      "  instr_log << \"Instr No.\" << std::setw(5) << GetInstrCntr() << '\\t';\n"
-      "  instr_log << instr_name << \" is activated\\n\";\n"
+      "void {project}::LogInstrSequence(const std::string& instr_name, const long int& exec_time) {{\n"
+      "  instr_log << \"Instr No. \" << std::setw(8) << GetInstrCntr() << '\\t';\n"
+      "  instr_log << instr_name << \" is activated\\t\";\n"
+      "  instr_log << \"exec_time: \" << exec_time * 1e-3 << \" us\\n\";\n"
       "  IncrementInstrCntr();\n"
       "}}\n",
       fmt::arg("project", GetProjectName()));
@@ -524,10 +526,15 @@ bool Ilator::GenerateExecuteKernel(const std::string& dir) {
     fmt::format_to(
         buff,
         "if ({valid_func_name}() && {decode_func_name}()) {{\n"
+        "#ifdef ILATOR_PROFILING\n"
+        "  auto start = std::chrono::high_resolution_clock::now();\n"
+        "#endif\n"
         "  {update_func_name}();\n"
-        "  {child_counter}"
-        "#ifdef ILATOR_VERBOSE\n"
-        "  LogInstrSequence(\"{instr_name}\");\n"
+        "  {child_counter}\n"
+        "#ifdef ILATOR_PROFILING\n"
+        "  auto stop = std::chrono::high_resolution_clock::now();\n"
+        "  auto exec_time = std::chrono::duration_cast<std::chrono::nanoseconds>(stop-start).count();\n"
+        "  LogInstrSequence(\"{instr_name}\", exec_time);\n"
         "#endif\n"
         "}}\n",
         fmt::arg("valid_func_name", GetValidFuncName(instr->host())),
@@ -583,7 +590,7 @@ bool Ilator::GenerateGlobalHeader(const std::string& dir) {
                  "  std::ofstream instr_update_log;\n" // add instruction state update logging
                  "  int GetInstrCntr();\n"
                  "  void IncrementInstrCntr();\n"
-                 "  void LogInstrSequence(const std::string& instr_name);\n",
+                 "  void LogInstrSequence(const std::string& instr_name, const long int&);\n",
                  fmt::arg("project", GetProjectName()));
 
   // input
@@ -655,8 +662,8 @@ bool Ilator::GenerateBuildSupport(const std::string& dir) {
       "cmake_minimum_required(VERSION 3.14.0)\n"
       "project({project} LANGUAGES CXX)\n"
       "\n"
-      "option(ILATOR_VERBOSE \"Enable instruction sequence logging\" OFF)\n"
-      // "option(ILATOR_INSN_VERBOSE \"Enable instruction state updates logging\" OFF)\n"
+      "option(ILATOR_PROFILING \"Enable instruction sequence logging and profiling\" OFF)\n"
+      "option(ILATOR_VERBOSE \"Enable instruction state updates logging\" OFF)\n"
       "option(JSON_SUPPORT \"Build JSON parser support\" OFF)\n"
       "\n"
       "find_package(SystemCLanguage CONFIG REQUIRED)\n"
@@ -671,8 +678,11 @@ bool Ilator::GenerateBuildSupport(const std::string& dir) {
       "\n"
       "target_include_directories({project} PRIVATE {dir_include})\n"
       "target_link_libraries({project} SystemC::systemc)\n"
+      "if(${{ILATOR_PROFILING}})\n"
+      "  target_compile_definitions({project} PRIVATE ILATOR_PROFILING)\n"
+      "endif()\n"
       "if(${{ILATOR_VERBOSE}})\n"
-      "  target_compile_definitions({project} PRIVATE ILATOR_VERBOSE)\n"
+      "  target_compile_definitions({project} PRIVATE ILATOR_PROFILING ILATOR_VERBOSE)\n"
       "endif()\n"
       // "if(${{ILATOR_INSN_VERBOSE}})\n"
       // "  target_compile_definitions({project} PRIVATE ILATOR_INSN_VERBOSE)\n"