1 /*
2 * Copyright (c) 2021 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/kernel.h>
8 #include <zephyr/timing/timing.h>
9 #include "utils.h"
10
11 #define TEST_COUNT 100
12 #define TEST_SIZE 10
13
heap_malloc_free(void)14 void heap_malloc_free(void)
15 {
16 timing_t heap_malloc_start_time = 0U;
17 timing_t heap_malloc_end_time = 0U;
18
19 timing_t heap_free_start_time = 0U;
20 timing_t heap_free_end_time = 0U;
21
22 uint32_t count = 0U;
23 uint32_t sum_malloc = 0U;
24 uint32_t sum_free = 0U;
25
26 bool failed = false;
27 char error_string[80];
28 char description[120];
29 const char *notes = "";
30
31 timing_start();
32
33 while (count != TEST_COUNT) {
34 heap_malloc_start_time = timing_counter_get();
35 void *allocated_mem = k_malloc(TEST_SIZE);
36
37 heap_malloc_end_time = timing_counter_get();
38 if (allocated_mem == NULL) {
39 error_count++;
40 snprintk(error_string, 78,
41 "alloc memory @ iteration %d", count);
42 notes = error_string;
43 break;
44 }
45
46 heap_free_start_time = timing_counter_get();
47 k_free(allocated_mem);
48 heap_free_end_time = timing_counter_get();
49
50 sum_malloc += timing_cycles_get(&heap_malloc_start_time,
51 &heap_malloc_end_time);
52 sum_free += timing_cycles_get(&heap_free_start_time,
53 &heap_free_end_time);
54 count++;
55 }
56
57 /*
58 * If count is 0, it means that there is not enough memory heap
59 * to do k_malloc at least once. Override the error string.
60 */
61
62 if (count == 0) {
63 failed = true;
64 notes = "Memory heap too small--increase it.";
65 }
66
67 snprintf(description, sizeof(description),
68 "%-40s - Average time for heap malloc",
69 "heap.malloc.immediate");
70 PRINT_STATS_AVG(description, sum_malloc, count, failed, notes);
71
72 snprintf(description, sizeof(description),
73 "%-40s - Average time for heap free",
74 "heap.free.immediate");
75 PRINT_STATS_AVG(description, sum_free, count, failed, notes);
76
77 timing_stop();
78 }
79
