mirror of https://github.com/ARMmbed/mbed-os.git
107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
|
|
/* mbed Microcontroller Library
|
|
* Copyright (c) 2018 ARM Limited
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "greentea-client/test_env.h"
|
|
#include "unity/unity.h"
|
|
#include "utest/utest.h"
|
|
|
|
#include "mbed.h"
|
|
|
|
#if !defined(MBED_CPU_STATS_ENABLED)
|
|
#error [NOT_SUPPORTED] test not supported
|
|
#endif
|
|
|
|
using namespace utest::v1;
|
|
|
|
DigitalOut led1(LED1);
|
|
|
|
#define MAX_THREAD_STACK 384
|
|
#define SAMPLE_TIME 1000 // msec
|
|
#define LOOP_TIME 2000 // msec
|
|
|
|
static int32_t wait_time = 5000;
|
|
|
|
static void busy_thread()
|
|
{
|
|
volatile uint64_t i = ~0;
|
|
|
|
while (i--) {
|
|
led1 = !led1;
|
|
wait_us(wait_time);
|
|
}
|
|
}
|
|
|
|
void get_cpu_usage()
|
|
{
|
|
static uint64_t prev_idle_time = 0;
|
|
mbed_stats_cpu_t stats;
|
|
mbed_stats_cpu_get(&stats);
|
|
|
|
uint64_t diff = (stats.idle_time - prev_idle_time);
|
|
uint8_t usage = 100 - ((diff * 100) / (SAMPLE_TIME * 1000));
|
|
prev_idle_time = stats.idle_time;
|
|
|
|
TEST_ASSERT_NOT_EQUAL(0, usage);
|
|
}
|
|
|
|
void test_cpu_info(void)
|
|
{
|
|
mbed_stats_cpu_t stats;
|
|
Thread::wait(0.1);
|
|
TEST_ASSERT_NOT_EQUAL(0, stats.uptime);
|
|
TEST_ASSERT_NOT_EQUAL(0, stats.idle_time);
|
|
return;
|
|
}
|
|
|
|
void test_cpu_load(void)
|
|
{
|
|
EventQueue *stats_queue = mbed_event_queue();
|
|
int id = stats_queue->call_every(SAMPLE_TIME, get_cpu_usage);
|
|
Thread thread(osPriorityNormal, MAX_THREAD_STACK);
|
|
|
|
thread.start(busy_thread);
|
|
|
|
// Steadily increase the system load
|
|
for (int count = 1; ; count++) {
|
|
Thread::wait(LOOP_TIME);
|
|
if (wait_time <= 0) {
|
|
break;
|
|
}
|
|
wait_time -= 1000; // usec
|
|
}
|
|
thread.terminate();
|
|
stats_queue->cancel(id);
|
|
}
|
|
|
|
Case cases[] = {
|
|
Case("Test CPU Info", test_cpu_info),
|
|
Case("Test CPU load", test_cpu_load)
|
|
};
|
|
|
|
utest::v1::status_t greentea_test_setup(const size_t number_of_cases)
|
|
{
|
|
GREENTEA_SETUP(20, "default_auto");
|
|
return greentea_test_setup_handler(number_of_cases);
|
|
}
|
|
|
|
Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
|
|
|
|
int main()
|
|
{
|
|
Harness::run(specification);
|
|
}
|