mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-03 22:08:28 +00:00
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/* perfmon (performance monitor) example
|
|
|
|
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 <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "esp_timer.h"
|
|
#include "esp_log.h"
|
|
#include "esp_sleep.h"
|
|
#include "sdkconfig.h"
|
|
|
|
#include "perfmon.h"
|
|
|
|
static const char* TAG = "example";
|
|
|
|
static void exec_test_function(void *params)
|
|
{
|
|
for (int i = 0 ; i < 100 ; i++) {
|
|
__asm__ __volatile__(" nop");
|
|
}
|
|
}
|
|
|
|
// Table with dedicated performance counters
|
|
static uint32_t pm_check_table[] = {
|
|
XTPERF_CNT_CYCLES, XTPERF_MASK_CYCLES, // total cycles
|
|
XTPERF_CNT_INSN, XTPERF_MASK_INSN_ALL, // total instructions
|
|
XTPERF_CNT_D_LOAD_U1, XTPERF_MASK_D_LOAD_LOCAL_MEM, // Mem read
|
|
XTPERF_CNT_D_STORE_U1, XTPERF_MASK_D_STORE_LOCAL_MEM, // Mem write
|
|
XTPERF_CNT_BUBBLES, XTPERF_MASK_BUBBLES_ALL &(~XTPERF_MASK_BUBBLES_R_HOLD_REG_DEP), // wait for other reasons
|
|
XTPERF_CNT_BUBBLES, XTPERF_MASK_BUBBLES_R_HOLD_REG_DEP, // Wait for register dependency
|
|
XTPERF_CNT_OVERFLOW, XTPERF_MASK_OVERFLOW, // Last test cycle
|
|
};
|
|
|
|
#define TOTAL_CALL_AMOUNT 200
|
|
#define PERFMON_TRACELEVEL -1 // -1 - will ignore trace level
|
|
|
|
void app_main(void)
|
|
{
|
|
ESP_LOGI(TAG, "Start");
|
|
ESP_LOGI(TAG, "Start test with printing all available statistic");
|
|
xtensa_perfmon_config_t pm_config = {};
|
|
pm_config.counters_size = sizeof(xtensa_perfmon_select_mask_all) / sizeof(uint32_t) / 2;
|
|
pm_config.select_mask = xtensa_perfmon_select_mask_all;
|
|
pm_config.repeat_count = TOTAL_CALL_AMOUNT;
|
|
pm_config.max_deviation = 1;
|
|
pm_config.call_function = exec_test_function;
|
|
pm_config.callback = xtensa_perfmon_view_cb;
|
|
pm_config.callback_params = stdout;
|
|
pm_config.tracelevel = PERFMON_TRACELEVEL;
|
|
xtensa_perfmon_exec(&pm_config);
|
|
|
|
ESP_LOGI(TAG, "Start test with user defined statistic");
|
|
pm_config.counters_size = sizeof(pm_check_table) / sizeof(uint32_t) / 2;
|
|
pm_config.select_mask = pm_check_table;
|
|
pm_config.repeat_count = TOTAL_CALL_AMOUNT;
|
|
pm_config.max_deviation = 1;
|
|
pm_config.call_function = exec_test_function;
|
|
pm_config.callback = xtensa_perfmon_view_cb;
|
|
pm_config.callback_params = stdout;
|
|
pm_config.tracelevel = PERFMON_TRACELEVEL;
|
|
|
|
xtensa_perfmon_exec(&pm_config);
|
|
|
|
ESP_LOGI(TAG, "The End");
|
|
}
|