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添加智能灯固件代码
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kerwincui
164
firmware/esp-idf/wumei-smart-firmware/main/statistic_free_rtos.c
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164
firmware/esp-idf/wumei-smart-firmware/main/statistic_free_rtos.c
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/******************************************************************************
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* 作者：kerwincui
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* 时间：2021-06-08
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* 邮箱：164770707@qq.com
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* 源码地址：https://gitee.com/kerwincui/wumei-smart
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* author: kerwincui
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* create: 2021-06-08
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* email：164770707@qq.com
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* source:https://github.com/kerwincui/wumei-smart
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******************************************************************************/
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#include "statistic_free_rtos.h"
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static char task_names[NUM_OF_SPIN_TASKS][configMAX_TASK_NAME_LEN];
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static SemaphoreHandle_t sync_spin_task;
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static SemaphoreHandle_t sync_stats_task;
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/**
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* @brief 函数打印给定时间内任务的CPU使用情况
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*
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*
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* @param xTicksToWait 统计测量周期
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*
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* @return
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* - ESP_OK 成功
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* - ESP_ERR_NO_MEM 内存不足，无法分配内部数组
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* - ESP_ERR_INVALID_SIZE uxTaskGetSystemState的数组大小不足，尝试增加ARRAY_SIZE_OFFSET
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* - ESP_ERR_INVALID_STATE 延迟时间太短
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*/
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static esp_err_t print_real_time_stats(TickType_t xTicksToWait)
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{
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TaskStatus_t *start_array = NULL, *end_array = NULL;
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UBaseType_t start_array_size, end_array_size;
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uint32_t start_run_time, end_run_time;
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esp_err_t ret;
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//分配数组存储当前的任务状态
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start_array_size = uxTaskGetNumberOfTasks() + ARRAY_SIZE_OFFSET;
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start_array = malloc(sizeof(TaskStatus_t) * start_array_size);
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if (start_array == NULL) {
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ret = ESP_ERR_NO_MEM;
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goto exit;
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}
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//获取当前任务状态
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start_array_size = uxTaskGetSystemState(start_array, start_array_size, &start_run_time);
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if (start_array_size == 0) {
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ret = ESP_ERR_INVALID_SIZE;
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goto exit;
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}
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vTaskDelay(xTicksToWait);
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//分配数组以存储延迟后的任务状态
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end_array_size = uxTaskGetNumberOfTasks() + ARRAY_SIZE_OFFSET;
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end_array = malloc(sizeof(TaskStatus_t) * end_array_size);
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if (end_array == NULL) {
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ret = ESP_ERR_NO_MEM;
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goto exit;
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}
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//获取延迟后任务状态
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end_array_size = uxTaskGetSystemState(end_array, end_array_size, &end_run_time);
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if (end_array_size == 0) {
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ret = ESP_ERR_INVALID_SIZE;
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goto exit;
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}
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//以运行时统计时钟周期为单位，计算合计已用时间
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uint32_t total_elapsed_time = (end_run_time - start_run_time);
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if (total_elapsed_time == 0) {
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ret = ESP_ERR_INVALID_STATE;
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goto exit;
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}
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printf("| Task | Run Time | Percentage\n");
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//将开始数组和结束数组的每一个任务进行匹配
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for (int i = 0; i < start_array_size; i++) {
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int k = -1;
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for (int j = 0; j < end_array_size; j++) {
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if (start_array[i].xHandle == end_array[j].xHandle) {
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k = j;
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//通过覆盖他们的句柄来标记已匹配的任务
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start_array[i].xHandle = NULL;
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end_array[j].xHandle = NULL;
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break;
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}
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}
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//检查是否找到匹配的任务
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if (k >= 0) {
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uint32_t task_elapsed_time = end_array[k].ulRunTimeCounter - start_array[i].ulRunTimeCounter;
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uint32_t percentage_time = (task_elapsed_time * 100UL) / (total_elapsed_time * portNUM_PROCESSORS);
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printf("| %s | %d | %d%%\n", start_array[i].pcTaskName, task_elapsed_time, percentage_time);
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}
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}
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//打印不匹配的任务
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for (int i = 0; i < start_array_size; i++) {
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if (start_array[i].xHandle != NULL) {
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printf("| %s | Deleted\n", start_array[i].pcTaskName);
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}
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}
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for (int i = 0; i < end_array_size; i++) {
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if (end_array[i].xHandle != NULL) {
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printf("| %s | Created\n", end_array[i].pcTaskName);
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}
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}
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ret = ESP_OK;
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exit: //公共返回路径
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free(start_array);
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free(end_array);
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return ret;
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}
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static void spin_task(void *arg)
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{
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xSemaphoreTake(sync_spin_task, portMAX_DELAY);
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while (1) {
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//消耗CPU周期
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for (int i = 0; i < SPIN_ITER; i++) {
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__asm__ __volatile__("NOP");
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}
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vTaskDelay(pdMS_TO_TICKS(100));
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}
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}
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static void stats_task(void *arg)
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{
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xSemaphoreTake(sync_stats_task, portMAX_DELAY);
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//开始所有旋转任务
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for (int i = 0; i < NUM_OF_SPIN_TASKS; i++) {
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xSemaphoreGive(sync_spin_task);
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}
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//定期打印实时统计信息
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while (1) {
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printf("\n\nGetting real time stats over %d ticks\n", STATS_TICKS);
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if (print_real_time_stats(STATS_TICKS) == ESP_OK) {
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printf("Real time stats obtained\n");
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} else {
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printf("Error getting real time stats\n");
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}
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vTaskDelay(pdMS_TO_TICKS(1000));
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}
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}
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void free_rtos_start(void)
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{
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//允许其他核心完成初始化
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vTaskDelay(pdMS_TO_TICKS(100));
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//创建信号量以进行同步
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sync_spin_task = xSemaphoreCreateCounting(NUM_OF_SPIN_TASKS, 0);
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sync_stats_task = xSemaphoreCreateBinary();
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//创建旋转任务
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for (int i = 0; i < NUM_OF_SPIN_TASKS; i++) {
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snprintf(task_names[i], configMAX_TASK_NAME_LEN, "spin%d", i);
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xTaskCreatePinnedToCore(spin_task, task_names[i], 1024, NULL, SPIN_TASK_PRIO, NULL, tskNO_AFFINITY);
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}
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//创建并启动统计任务
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xTaskCreatePinnedToCore(stats_task, "stats", 4096, NULL, STATS_TASK_PRIO, NULL, tskNO_AFFINITY);
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xSemaphoreGive(sync_stats_task);
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}
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