Merge branch 'feat/add_mutex' into 'master'

Feat/add mutex

See merge request speech-recognition-framework/esp-sr!29

CHANGELOG.md

@@ -1,8 +1,13 @@
 # Change log for esp-sr
 
 ## Unreleased
+
+## 1.2.1
+- Fix bugs in model loader
 - Read all parameters sequentially, which reduces about 5x in model loading time.
 - Use esp_partition_mmap to replace spiffs file system, which further reduces about 3x in model loading time
+- Add WakeNet API unity test
+- Add MultiNet API unity test
 
 ## 1.2.0
 - ESP-DSP dependency is now installed from the component registry

idf_component.yml

@@ -1,4 +1,4 @@
-version: "1.2.0"
+version: "1.2.1"
 description: esp_sr provides basic algorithms for Speech Recognition applications
 url: https://github.com/espressif/esp-sr
 dependencies:

model/movemodel.py

@@ -2,6 +2,7 @@ import io
 import os
 import argparse
 import shutil
+import math
 from pack_model import pack_models
 
 def calculate_total_size(folder_path):
@@ -64,23 +65,25 @@ def copy_multinet_from_sdkconfig(model_path, sdkconfig_path, target_path):
                 models_string += label
 
     models = []
-    if "CONFIG_SR_MN_CN_MULTINET3_SINGLE_RECOGNITION" in models_string and len(models) < 2:
+    if "CONFIG_SR_MN_CN_MULTINET3_SINGLE_RECOGNITION" in models_string:
         models.append('mn3_cn')
     elif "CONFIG_SR_MN_CN_MULTINET4_5_SINGLE_RECOGNITION_QUANT8" in models_string:
         models.append('mn4q8_cn')
-    elif "CONFIG_SR_MN_CN_MULTINET4_5_SINGLE_RECOGNITION" in models_string and len(models) < 2:
+    elif "CONFIG_SR_MN_CN_MULTINET4_5_SINGLE_RECOGNITION" in models_string:
         models.append('mn4_cn')
-    elif "CONFIG_SR_MN_CN_MULTINET5_RECOGNITION_QUANT8" in models_string and len(models) < 2:
+    elif "CONFIG_SR_MN_CN_MULTINET5_RECOGNITION_QUANT8" in models_string:
         models.append('mn5q8_cn')
-    elif "CONFIG_SR_MN_EN_MULTINET5_SINGLE_RECOGNITION_QUANT8" in models_string and len(models) < 2:
-        models.append('mn5q8_en')
-    elif "CONFIG_SR_MN_EN_MULTINET5_SINGLE_RECOGNITION" in models_string and len(models) < 2:
-        models.append('mn5_en')
-    elif "CONFIG_SR_MN_EN_MULTINET6_QUANT" in models_string and len(models) < 2:
-        models.append('mn6_en')
-    elif "CONFIG_SR_MN_CN_MULTINET6_QUANT" in models_string and len(models) < 2:
+    elif "CONFIG_SR_MN_CN_MULTINET6_QUANT" in models_string:
         models.append('mn6_cn')
     
+    if "CONFIG_SR_MN_EN_MULTINET5_SINGLE_RECOGNITION_QUANT8" in models_string:
+        models.append('mn5q8_en')
+    elif "CONFIG_SR_MN_EN_MULTINET5_SINGLE_RECOGNITION" in models_string:
+        models.append('mn5_en')
+    elif "CONFIG_SR_MN_EN_MULTINET6_QUANT" in models_string:
+        models.append('mn6_en')
+
+    
     if "MULTINET6" in models_string:
         models.append('fst')
 
@@ -116,6 +119,7 @@ if __name__ == '__main__':
     sdkconfig_path = args.project_path + '/sdkconfig'
     model_path = args.model_path + '/model'
     target_path = args.build_path + '/srmodels'
+    image_file = "srmodels.bin"
 
     if os.path.exists(target_path):
         shutil.rmtree(target_path)
@@ -123,6 +127,7 @@ if __name__ == '__main__':
 
     copy_multinet_from_sdkconfig(model_path, sdkconfig_path, target_path)
     copy_wakenet_from_sdkconfig(model_path, sdkconfig_path, target_path)
-    total_size = calculate_total_size(target_path)
-    pack_models(target_path, "srmodels.bin")
-    print("Recommended model partition size: ", str(int((total_size / 1024 + 900) / 4 ) * 4) + 'KB')
+    pack_models(target_path, image_file)
+    total_size = os.path.getsize(os.path.join(target_path, image_file))
+    recommended_size = int(math.ceil(total_size/1024))
+    print("Recommended model partition size: %dK" % (recommended_size))

model/pack_model.py

@@ -104,6 +104,7 @@ def pack_models(model_path, out_file="srmodels.bin"):
         
         out_bin += model_bin
     assert len(out_bin) == header_len
+    if data_bin != None:
         out_bin += data_bin
 
     out_file = os.path.join(model_path, out_file)

src/esp_process_sdkconfig.c

@@ -874,7 +874,9 @@ char *get_id_name_en(int i)
 
 esp_mn_error_t* esp_mn_commands_update_from_sdkconfig(const esp_mn_iface_t *multinet,  model_iface_data_t *model_data)
 {
-#ifdef CONFIG_SR_MN_CN_MULTINET6_QUANT || CONFIG_SR_MN_EN_MULTINET6_QUANT
+#ifdef CONFIG_SR_MN_CN_MULTINET6_QUANT
+    return NULL;
+#else if  CONFIG_SR_MN_EN_MULTINET6_QUANT
     return NULL;
 #endif
 

src/include/model_path.h

@@ -17,8 +17,8 @@ typedef struct
 typedef struct 
 {
     char **model_name;                   // the name of models, like "wn9_hilexin"(wakenet9, hilexin), "mn5_en"(multinet5, english)
-    char *partition_label;               // partition label used to save the files of model
-    spi_flash_mmap_handle_t *mmap_handle;// mmap_handle if using esp_partition_mmap else NULL; 
+    esp_partition_t *partition;               // partition label used to save the files of model
+    spi_flash_mmap_handle_t mmap_handle; // mmap_handle if using esp_partition_mmap else NULL; 
     int num;                             // the number of models
     srmodel_data_t **model_data;         // the model data , NULL if spiffs format
 } srmodel_list_t;
@@ -72,11 +72,11 @@ int esp_srmodel_exists(srmodel_list_t *models, char *model_name);
 /**
  * @brief Initialize and mount SPIFFS filesystem, return all avaliable models in spiffs.
  *
- * @param partition_label    The spiffs label defined in your partition file used to save models.
+ * @param part    The spiffs partition.
  * 
  * @return all avaliable models in spiffs,save as srmodel_list_t.
  */
-srmodel_list_t *srmodel_spiffs_init(const char* partition_label);
+srmodel_list_t* srmodel_spiffs_init(const esp_partition_t *part);
 
 /**
  * @brief unregister SPIFFS filesystem and free srmodel_list_t.

src/model_path.c

@@ -25,11 +25,10 @@ void set_model_base_path(const char *base_path)
 static srmodel_list_t* srmodel_list_alloc(void)
 {
     srmodel_list_t *models = (srmodel_list_t*) malloc(sizeof(srmodel_list_t));
-    models->mmap_handle = NULL;
     models->model_data = NULL;
     models->model_name = NULL;
     models->num = 0;
-    models->partition_label = NULL;
+    models->partition = NULL;
 
     return models;
 }
@@ -71,7 +70,6 @@ srmodel_list_t *read_models_form_spiffs(esp_vfs_spiffs_conf_t *conf)
             return models;
         } else {
             models->num = model_num;
-            models->partition_label = (char *)conf->partition_label;
             models->model_name = malloc(models->num*sizeof(char*));
             for (int i=0; i<models->num; i++)
                 models->model_name[i] = (char*) calloc(MODEL_NAME_MAX_LENGTH, sizeof(char));
@@ -104,13 +102,13 @@ srmodel_list_t *read_models_form_spiffs(esp_vfs_spiffs_conf_t *conf)
 }
 
 
-srmodel_list_t* srmodel_spiffs_init(const char *partition_label)
+srmodel_list_t* srmodel_spiffs_init(const esp_partition_t *part)
 {
-    ESP_LOGI(TAG, "\nInitializing models from SPIFFS, partition label: %s\n", partition_label);
+    ESP_LOGI(TAG, "\nInitializing models from SPIFFS, partition label: %s\n", part->label);
 
     esp_vfs_spiffs_conf_t conf = {
         .base_path = SRMODE_BASE_PATH,
-        .partition_label = partition_label,
+        .partition_label = part->label,
         .max_files = 5,
         .format_if_mount_failed = true
     };
@@ -131,7 +129,7 @@ srmodel_list_t* srmodel_spiffs_init(const char *partition_label)
     }
 
     size_t total = 0, used = 0;
-    ret = esp_spiffs_info(partition_label, &total, &used);
+    ret = esp_spiffs_info(part->label, &total, &used);
     if (ret != ESP_OK) {
         ESP_LOGE(TAG, "Failed to get SPIFFS partition information (%s)\n", esp_err_to_name(ret));
     } else {
@@ -139,18 +137,20 @@ srmodel_list_t* srmodel_spiffs_init(const char *partition_label)
     }
 
     // Read all model from path
-    return read_models_form_spiffs(&conf);
+    srmodel_list_t *models = read_models_form_spiffs(&conf);
+    models->partition = (esp_partition_t *)part;
+    return models;
 }
 
 
 void srmodel_spiffs_deinit(srmodel_list_t *models)
 {
-    if (models->partition_label != NULL) {
-        esp_err_t ret = esp_vfs_spiffs_unregister(models->partition_label);
+    if (models->partition != NULL) {
+        esp_err_t ret = esp_vfs_spiffs_unregister(models->partition->label);
         if (ret != ESP_OK) {
             ESP_LOGW(TAG, "Already unregistered\n");
         } else {
-            ESP_LOGI(TAG, "%s has been unregistered\n", models->partition_label);
+            ESP_LOGI(TAG, "%s has been unregistered\n", models->partition->label);
         }
     }
 
@@ -236,7 +236,7 @@ static uint32_t read_int32(char *data) {
 	return value;
 }
 
-srmodel_list_t *srmodel_mmap_init(esp_partition_t *part)
+srmodel_list_t *srmodel_mmap_init(const esp_partition_t *part)
 {
     if (static_srmodels == NULL) 
         static_srmodels = srmodel_list_alloc();
@@ -244,19 +244,18 @@ srmodel_list_t *srmodel_mmap_init(esp_partition_t *part)
         return static_srmodels;
     
     srmodel_list_t *models = static_srmodels;
-    void *root = NULL;
-    models->mmap_handle = (spi_flash_mmap_handle_t *)malloc(sizeof(spi_flash_mmap_handle_t));
-    esp_err_t err=esp_partition_mmap(part, 0, part->size, SPI_FLASH_MMAP_DATA, &root, models->mmap_handle);
+    const void *root;
+    esp_err_t err=esp_partition_mmap(part, 0, part->size, SPI_FLASH_MMAP_DATA, &root, &models->mmap_handle);
     if (err != ESP_OK) {
-        ESP_LOGE(TAG, "Can not map %s partition!\n", part->label);
+        ESP_LOGE(TAG, "Can not map %s partition!", part->label);
         return NULL;
     } else {
-        ESP_LOGI(TAG, "partition %s size: %d by mmap\n", part->label, part->size);
+        ESP_LOGI(TAG, "partition %s size: %d by mmap", part->label, part->size);
     }
 
-    models->partition_label = part->label;
-    char *start = root;
-    char *data = root;    
+    models->partition = (esp_partition_t *)part;
+    char *start = (char *)root;
+    char *data = (char *)root;    
     int str_len = SRMODEL_STRING_LENGTH;
     int int_len = 4;
     //read model number
@@ -271,13 +270,12 @@ srmodel_list_t *srmodel_mmap_init(esp_partition_t *part)
         models->model_name[i] = (char*)malloc((strlen(data)+1)*sizeof(char));
         strcpy(models->model_name[i], data);
         data += str_len;
-        printf("%s\n", models->model_name[i]);
         //read model number
         int file_num = read_int32(data);
         model_data->num = file_num;
         data += int_len;
         model_data->files = (char **) malloc(sizeof(char*)*file_num);
-        model_data->data = (void **) malloc(sizeof(void*)*file_num);
+        model_data->data = (char **) malloc(sizeof(void*)*file_num);
         model_data->sizes = (int *) malloc(sizeof(int)*file_num);
 
         for (int j=0; j<file_num; j++) {
@@ -322,6 +320,7 @@ void srmodel_mmap_deinit(srmodel_list_t *models)
         free(models);
     }
     models = NULL;
+    static_srmodels = NULL;
 }
 
 #endif
@@ -399,7 +398,7 @@ srmodel_list_t* srmodel_sdcard_init(const char *base_path)
             return models;
         } else {
             models->num = model_num;
-            models->partition_label = NULL;
+            models->partition = NULL;
             models->model_name = malloc(models->num*sizeof(char*));
             for (int i=0; i<models->num; i++) 
                 models->model_name[i] = (char*) calloc(MODEL_NAME_MAX_LENGTH, sizeof(char));
@@ -463,7 +462,7 @@ srmodel_list_t* esp_srmodel_init(const char* partition_label)
     if (part) {
         return srmodel_mmap_init(part);
     } else {
-        ESP_LOGE(TAG, "Can not find %s in partition table\n", partition_label);
+        ESP_LOGE(TAG, "Can not find %s in partition table", partition_label);
     }
     
     return NULL;
@@ -481,7 +480,7 @@ void esp_srmodel_deinit(srmodel_list_t *models)
 #ifdef CONFIG_IDF_TARGET_ESP32
     return srmodel_config_deinit(models);
 #else
-    return srmodel_spiffs_deinit(models);
+    return srmodel_mmap_deinit(models);
 #endif
 
 #else

test/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRC_DIRS "."
+                        INCLUDE_DIRS "."
+                        REQUIRES cmock esp-sr)

test/unity_multinet.c

@@ -0,0 +1,114 @@
+/* test_mean.c: Implementation of a testable component.
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#include "string.h"
+#include <limits.h>
+#include "unity.h"
+
+#include "model_path.h"
+#include "esp_mn_iface.h"
+#include "esp_mn_models.h"
+#include "dakaidiandeng.h"
+#include "alexa.h"
+#include "dl_lib_convq_queue.h"
+#include <sys/time.h>
+
+TEST_CASE("multinet create/destroy API & memory leak", "[mn]")
+{
+    vTaskDelay(500 / portTICK_PERIOD_MS);
+    int start_size = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    int start_internal_size = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    srmodel_list_t *models = esp_srmodel_init("model");
+    char *model_name = esp_srmodel_filter(models, ESP_MN_PREFIX, NULL);
+    esp_mn_iface_t *multinet = esp_mn_handle_from_name(model_name);
+
+    // test model loading time
+    struct timeval tv_start, tv_end;
+    gettimeofday(&tv_start, NULL);
+    model_iface_data_t *model_data = multinet->create(model_name, 6000);
+    gettimeofday(&tv_end, NULL);
+    int tv_ms=(tv_end.tv_sec-tv_start.tv_sec)*1000+(tv_end.tv_usec-tv_start.tv_usec)/1000;
+    printf("create latency:%d ms\n", tv_ms);
+
+    // test model memory concumption
+    int create_size = start_size - heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    int create_internal_size = start_internal_size - heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    printf("Internal RAM: %d, PSRAM:%d\n", create_internal_size, create_size-create_internal_size);
+    multinet->destroy(model_data);
+    esp_srmodel_deinit(models);
+
+    // test memory leak
+    int first_end_size = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    int first_end_internal_size = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    int last_end_size = first_end_size;
+    int last_end_internal_size = first_end_internal_size;
+    int mem_leak = start_size - last_end_size;
+    printf("create&destroy times:%d, memory leak:%d\n", 1, mem_leak);
+
+    for (int i=0; i<5; i++) {
+        printf("init partition ...\n");
+        models = esp_srmodel_init("model");
+        model_name = esp_srmodel_filter(models, ESP_MN_PREFIX, NULL);
+        multinet = esp_mn_handle_from_name(model_name);
+
+        int time_out = 3000+i*2000;
+        printf("create ..., time out = %d\n", time_out);
+        model_data = multinet->create(model_name, time_out);
+
+        printf("destroy ...\n");
+        multinet->destroy(model_data);
+        esp_srmodel_deinit(models);
+
+        last_end_size = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+        last_end_internal_size = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+        mem_leak = start_size - last_end_size;
+        printf("create&destroy times:%d, memory leak:%d\n", i+2, mem_leak);
+    }
+
+    TEST_ASSERT_EQUAL(true, (mem_leak) < 1000 && last_end_size == first_end_size);
+}
+
+TEST_CASE("multinet detect API & cpu loading", "[mn]")
+{
+    vTaskDelay(500 / portTICK_PERIOD_MS);
+    srmodel_list_t *models = esp_srmodel_init("model");
+    char *model_name = esp_srmodel_filter(models, ESP_MN_PREFIX, NULL);
+    esp_mn_iface_t *multinet = esp_mn_handle_from_name(model_name);
+    model_iface_data_t *model_data = multinet->create(model_name, 6000);
+    int frequency = multinet->get_samp_rate(model_data);
+    int audio_chunksize = multinet->get_samp_chunksize(model_data) * sizeof(int16_t);
+    int16_t *buffer = malloc(audio_chunksize);
+    int chunks = 0;
+    struct timeval tv_start, tv_end;
+    gettimeofday(&tv_start, NULL);
+
+    while (1) {
+        if ((chunks + 1)*audio_chunksize <= sizeof(alexa)) {
+            memcpy(buffer, alexa + chunks * audio_chunksize, audio_chunksize);
+        } else {
+            memset(buffer, 0, audio_chunksize);
+        }
+        esp_mn_state_t mn_state = multinet->detect(model_data, buffer);
+
+        chunks++;
+        if (chunks == 64)
+            break;
+    }
+    gettimeofday(&tv_end, NULL);
+    int tv_ms=(tv_end.tv_sec-tv_start.tv_sec)*1000+(tv_end.tv_usec-tv_start.tv_usec)/1000;
+    chunks -= 7;
+    int run_ms = (chunks)*audio_chunksize/sizeof(int16_t)*1000/frequency;
+    float cpu_loading = tv_ms*100.0/run_ms;
+    printf("Done! Took %d ms to parse %d ms worth of samples in %d iterations. CPU loading(single core):%.1f%%\n", 
+           tv_ms, run_ms, chunks, cpu_loading);
+    
+    multinet->destroy(model_data);
+    esp_srmodel_deinit(models);
+    TEST_ASSERT_EQUAL(true, (cpu_loading<75 && tv_ms>0));
+}

test/unity_wakenet.c

@@ -0,0 +1,122 @@
+/* test_mean.c: Implementation of a testable component.
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#include "string.h"
+#include <limits.h>
+#include "unity.h"
+
+#include "model_path.h"
+#include "esp_wn_iface.h"
+#include "esp_wn_models.h"
+#include "hilexin.h"
+#include "dl_lib_convq_queue.h"
+#include <sys/time.h>
+
+TEST_CASE("wakenet create/destroy API & memory leak", "[wn]")
+{
+    vTaskDelay(500 / portTICK_PERIOD_MS);
+    int start_size = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    int start_internal_size = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    srmodel_list_t *models = esp_srmodel_init("model");
+    char *model_name = esp_srmodel_filter(models, ESP_WN_PREFIX, NULL);
+    esp_wn_iface_t *wakenet = esp_wn_handle_from_name(model_name);
+
+    // test model loading time
+    struct timeval tv_start, tv_end;
+    gettimeofday(&tv_start, NULL);
+    model_iface_data_t *model_data = wakenet->create(model_name, DET_MODE_3CH_95);
+    gettimeofday(&tv_end, NULL);
+    int tv_ms=(tv_end.tv_sec-tv_start.tv_sec)*1000+(tv_end.tv_usec-tv_start.tv_usec)/1000;
+    printf("create latency:%d ms\n", tv_ms);
+
+    // test model memory concumption
+    int create_size = start_size - heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    int create_internal_size = start_internal_size - heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    printf("Internal RAM: %d, PSRAM:%d\n", create_internal_size, create_size-create_internal_size);
+    wakenet->destroy(model_data);
+    esp_srmodel_deinit(models);
+
+    // test memory leak
+    int first_end_size = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+    int first_end_internal_size = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+    int last_end_size = first_end_size;
+    int last_end_internal_size = first_end_internal_size;
+    int mem_leak = start_size - last_end_size;
+    printf("create&destroy times:%d, memory leak:%d\n", 1, mem_leak);
+
+    for (int i=0; i<6; i++) {
+        printf("init partition ...\n");
+        models = esp_srmodel_init("model");
+        model_name = esp_srmodel_filter(models, ESP_WN_PREFIX, NULL);
+        wakenet = esp_wn_handle_from_name(model_name);
+
+        printf("create ...\n");
+        // typedef enum {
+        //     DET_MODE_90 = 0,       // Normal
+        //     DET_MODE_95 = 1,       // Aggressive
+        //     DET_MODE_2CH_90 = 2,
+        //     DET_MODE_2CH_95 = 3,
+        //     DET_MODE_3CH_90 = 4,
+        //     DET_MODE_3CH_95 = 5,
+        // } det_mode_t;
+        model_data = wakenet->create(model_name, i);
+
+        printf("destroy ...\n");
+        wakenet->destroy(model_data);
+        esp_srmodel_deinit(models);
+
+        last_end_size = heap_caps_get_free_size(MALLOC_CAP_8BIT);
+        last_end_internal_size = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+        mem_leak = start_size - last_end_size;
+        printf("create&destroy times:%d, memory leak:%d\n", i+2, mem_leak);
+    }
+
+    TEST_ASSERT_EQUAL(true, (mem_leak) < 1000 && last_end_size == first_end_size);
+}
+
+TEST_CASE("wakenet detect API & cpu loading", "[wn]")
+{
+    vTaskDelay(500 / portTICK_PERIOD_MS);
+    srmodel_list_t *models = esp_srmodel_init("model");
+    char *model_name = esp_srmodel_filter(models, ESP_WN_PREFIX, NULL);
+    esp_wn_iface_t *wakenet = esp_wn_handle_from_name(model_name);
+    model_iface_data_t *model_data = wakenet->create(model_name, DET_MODE_95);
+    int frequency = wakenet->get_samp_rate(model_data);
+    int audio_chunksize = wakenet->get_samp_chunksize(model_data) * sizeof(int16_t);
+    int16_t *buffer = malloc(audio_chunksize);
+    int chunks = 0;
+    int detected = 0;
+    struct timeval tv_start, tv_end;
+    gettimeofday(&tv_start, NULL);
+
+    while (1) {
+        if ((chunks + 1)*audio_chunksize <= sizeof(hilexin)) {
+            memcpy(buffer, hilexin + chunks * audio_chunksize, audio_chunksize);
+        } else {
+            memset(buffer, 0, audio_chunksize);
+        }
+        int res = wakenet->detect(model_data, buffer);
+        if (res > 0)
+            detected = 1;
+
+        chunks++;
+        if (detected == 1)
+            break;
+    }
+    gettimeofday(&tv_end, NULL);
+    int tv_ms=(tv_end.tv_sec-tv_start.tv_sec)*1000+(tv_end.tv_usec-tv_start.tv_usec)/1000;
+    int run_ms = (chunks)*audio_chunksize/sizeof(int16_t)*1000/frequency;
+    float cpu_loading = tv_ms*100.0/run_ms;
+    printf("Done! Took %d ms to parse %d ms worth of samples in %d iterations. CPU loading(single core):%.1f%%\n", 
+           tv_ms, run_ms, chunks, cpu_loading);
+    
+    wakenet->destroy(model_data);
+    esp_srmodel_deinit(models);
+    TEST_ASSERT_EQUAL(true, (cpu_loading<75 && detected==1));
+}