1 /*
2 * Copyright (c) 2020 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6 #include <zephyr/kernel.h>
7 #include <zephyr/timing/timing.h>
8 #include "utils.h"
9
10 #define STACK_SIZE (512 + CONFIG_TEST_EXTRA_STACK_SIZE)
11 /* stack used by the threads */
12 static K_THREAD_STACK_DEFINE(t1_stack, STACK_SIZE);
13
14 static struct k_thread t1;
15
16 timing_t timestamp_start_create_c;
17 timing_t timestamp_end_create_c;
18 timing_t timestamp_start_start_c;
19 timing_t timestamp_end_start_c;
20 timing_t timestamp_start_suspend_c;
21 timing_t timestamp_end_suspend_c;
22 timing_t timestamp_start_resume_c;
23 timing_t timestamp_end_resume_c;
24
25 timing_t timestamp_start_abort_1;
26 timing_t timestamp_end_abort_1;
27
thread_suspend_resume(void * p1,void * p2,void * p3)28 void thread_suspend_resume(void *p1, void *p2, void *p3)
29 {
30 timestamp_start_suspend_c = timing_counter_get();
31 k_thread_suspend(_current);
32
33 /* comes to this line once its resumed*/
34 timestamp_start_resume_c = timing_counter_get();
35
36 }
37
suspend_resume(void)38 int suspend_resume(void)
39 {
40 uint32_t diff;
41
42 timing_start();
43
44 timestamp_start_create_c = timing_counter_get();
45
46 k_tid_t t1_tid = k_thread_create(&t1, t1_stack, STACK_SIZE,
47 thread_suspend_resume, NULL, NULL,
48 NULL, K_PRIO_PREEMPT(6), 0, K_FOREVER);
49
50 timestamp_end_create_c = timing_counter_get();
51 k_thread_name_set(t1_tid, "t1");
52
53 timestamp_start_start_c = timing_counter_get();
54 k_thread_start(t1_tid);
55
56 timestamp_end_suspend_c = timing_counter_get();
57 k_thread_resume(t1_tid);
58 timestamp_end_resume_c = timing_counter_get();
59
60
61 diff = timing_cycles_get(×tamp_start_create_c,
62 ×tamp_end_create_c);
63 PRINT_STATS("Time to create a thread (without start)", diff);
64
65 diff = timing_cycles_get(×tamp_start_start_c,
66 ×tamp_start_suspend_c);
67 PRINT_STATS("Time to start a thread", diff);
68
69 diff = timing_cycles_get(×tamp_start_suspend_c,
70 ×tamp_end_suspend_c);
71 PRINT_STATS("Time to suspend a thread", diff);
72
73 diff = timing_cycles_get(×tamp_start_resume_c,
74 ×tamp_end_resume_c);
75 PRINT_STATS("Time to resume a thread", diff);
76
77 timestamp_start_abort_1 = timing_counter_get();
78 k_thread_abort(t1_tid);
79 timestamp_end_abort_1 = timing_counter_get();
80
81 diff = timing_cycles_get(×tamp_start_abort_1,
82 ×tamp_end_abort_1);
83 PRINT_STATS("Time to abort a thread (not running)", diff);
84
85 timing_stop();
86 return 0;
87 }
88
