alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-10-03 12:07:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

Performance monitor component. The component contains APIs, example and

Browse Source 
documentation.
This commit is contained in:
Dmitry
2019-04-04 11:06:22 +03:00
parent 2f557d1a59
commit a0730fec2a
25 changed files with 1560 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
examples/system/perfmon/main/perfmon_example_main.c Normal file
View File

@@ -0,0 +1,71 @@
/* 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");
}