0002-common-perf-Added-simple-cycle-counter.patch

From 4ccf5152db7ec01bef42f9a430b1909e6e05f0d3 Mon Sep 17 00:00:00 2001
From: Grzegorz Latosinski <glatosinski@antmicro.com>
Date: Wed, 8 May 2024 09:30:43 +0200
Subject: [PATCH 2/2] common: perf: Added simple cycle counter

Signed-off-by: Grzegorz Latosinski <glatosinski@antmicro.com>
---
 common/src/perf.cc   | 1 +
 common/src/perf.h    | 1 +
 common/src/tflite.cc | 2 ++
 3 files changed, 4 insertions(+)

diff --git a/common/src/perf.cc b/common/src/perf.cc
index 60f2ca92..553a3a44 100644
--- a/common/src/perf.cc
+++ b/common/src/perf.cc
@@ -19,6 +19,7 @@
 #include "menu.h"
 
 unsigned CFU_start_counts[NUM_PERF_COUNTERS];
+uint32_t cycle_counter = 0;
 
 void perf_print_human(uint64_t n) {
   if (n > 9999999) {
diff --git a/common/src/perf.h b/common/src/perf.h
index bfd822fc..4f8ca40e 100644
--- a/common/src/perf.h
+++ b/common/src/perf.h
@@ -33,6 +33,7 @@ extern "C" {
 #define NUM_PERF_COUNTERS 0
 #endif
 
+extern uint32_t cycle_counter;
 
 extern unsigned CFU_start_counts[NUM_PERF_COUNTERS];
 
diff --git a/common/src/tflite.cc b/common/src/tflite.cc
index 906fbda4..05850ce2 100644
--- a/common/src/tflite.cc
+++ b/common/src/tflite.cc
@@ -251,6 +251,7 @@ void tflite_classify() {
   // Run the model on this input and make sure it succeeds.
   profiler->ClearEvents();
   perf_reset_all_counters();
+  cycle_counter = 0;
 
   // perf_set_mcycle is a no-op for some boards, start and end used instead.
   uint64_t start = perf_get_mcycle64();
@@ -265,6 +266,7 @@ void tflite_classify() {
 #endif
   perf_print_value(end - start);  // Possible overflow is intentional here.
   printf(" cycles total\n");
+  printf("Tracked cycles: %lu\n", cycle_counter);
 }
 
 int8_t* get_input() { return interpreter->input(0)->data.int8; }
-- 
2.43.0