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esp32/modesp32: Implement esp32.idf_task_info().

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This adds a new function, `esp32.idf_task_info()`, that can be used to
retrieve task statistics which is useful for diagnosing issues where some
tasks are using up a lot of CPU time.

It's best used in conjunction with the `utop` module from micropython-lib.

Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>
This commit is contained in:
Daniël van de Giessen
2022-03-01 22:29:58 +01:00
committed by Damien George
parent 10f6c0699e
commit 06d8c084b9
2 changed files with 69 additions and 0 deletions
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46
ports/esp32/modesp32.c
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@@ -212,6 +212,49 @@ static mp_obj_t esp32_idf_heap_info(const mp_obj_t cap_in) {
}
static MP_DEFINE_CONST_FUN_OBJ_1(esp32_idf_heap_info_obj, esp32_idf_heap_info);
#if CONFIG_FREERTOS_USE_TRACE_FACILITY
static mp_obj_t esp32_idf_task_info(void) {
const size_t task_count_max = uxTaskGetNumberOfTasks();
TaskStatus_t *task_array = m_new(TaskStatus_t, task_count_max);
uint32_t total_time;
const size_t task_count = uxTaskGetSystemState(task_array, task_count_max, &total_time);
mp_obj_list_t *task_list = MP_OBJ_TO_PTR(mp_obj_new_list(task_count, NULL));
for (size_t i = 0; i < task_count; i++) {
mp_obj_t task_data[] = {
mp_obj_new_int_from_uint((mp_uint_t)task_array[i].xHandle),
mp_obj_new_str(task_array[i].pcTaskName, strlen(task_array[i].pcTaskName)),
MP_OBJ_NEW_SMALL_INT(task_array[i].eCurrentState),
MP_OBJ_NEW_SMALL_INT(task_array[i].uxCurrentPriority),
#if CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS
mp_obj_new_int_from_uint(task_array[i].ulRunTimeCounter),
#else
mp_const_none,
#endif
mp_obj_new_int_from_uint(task_array[i].usStackHighWaterMark),
#if CONFIG_FREERTOS_VTASKLIST_INCLUDE_COREID
MP_OBJ_NEW_SMALL_INT(task_array[i].xCoreID),
#else
mp_const_none,
#endif
};
task_list->items[i] = mp_obj_new_tuple(7, task_data);
}
m_del(TaskStatus_t, task_array, task_count_max);
mp_obj_t task_stats[] = {
#if CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS
MP_OBJ_NEW_SMALL_INT(total_time),
#else
mp_const_none,
#endif
task_list
};
return mp_obj_new_tuple(2, task_stats);
}
static MP_DEFINE_CONST_FUN_OBJ_0(esp32_idf_task_info_obj, esp32_idf_task_info);
#endif
static const mp_rom_map_elem_t esp32_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_esp32) },
@@ -228,6 +271,9 @@ static const mp_rom_map_elem_t esp32_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_mcu_temperature), MP_ROM_PTR(&esp32_mcu_temperature_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_idf_heap_info), MP_ROM_PTR(&esp32_idf_heap_info_obj) },
#if CONFIG_FREERTOS_USE_TRACE_FACILITY
{ MP_ROM_QSTR(MP_QSTR_idf_task_info), MP_ROM_PTR(&esp32_idf_task_info_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_NVS), MP_ROM_PTR(&esp32_nvs_type) },
{ MP_ROM_QSTR(MP_QSTR_Partition), MP_ROM_PTR(&esp32_partition_type) },