perfmon sample
Select one of the symbols to view example projects that use it.
 
Outline
#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"
TAG
exec_test_function(void *)
pm_check_table
#define TOTAL_CALL_AMOUNT
#define PERFMON_TRACELEVEL
app_main()
Files
loading...
SourceVuESP-IDF Framework and Examplesperfmon samplemain/perfmon_example_main.c
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
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"8 includes 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"); }{ ... }
Details
Show:
from
Types: Columns: