void semaphore_test(void)
{
int producer_th;
int consumer_th;
int producer_ret;
int consumer_ret;
/* allocate the empty signal semaphores */
/* initialize the empty as 1 so we can insert an item immediately. */
sem_empty = thinkos_sem_alloc(1);
/* allocate the full signal semaphores */
/* initialize the full as 0 as we don't have produced anything yet. */
sem_full = thinkos_sem_alloc(0);
/* create the producer thread */
producer_th = thinkos_thread_create(producer_task, NULL,
producer_stack, sizeof(producer_stack));
/* create the consuer thread */
consumer_th = thinkos_thread_create(consumer_task, NULL,
consumer_stack, sizeof(consumer_stack));
printf(" * Empty semaphore: %d\n", sem_empty);
printf(" * Full semaphore: %d\n", sem_full);
printf(" * Producer thread: %d\n", producer_th);
printf(" * Consumer thread: %d\n", consumer_th);
printf("\n");
thinkos_sleep(100);
/* number of items to be produced */
prod_count = 100;
/* wait for the production thread to finish */
producer_ret = thinkos_join(producer_th);
/* wait for the consumer thread to finish */
consumer_ret = thinkos_join(consumer_th);
printf(" * Production return = %d\n", producer_ret);
printf(" * Consumer return = %d\n", consumer_ret);
/* release the semaphores */
thinkos_sem_free(sem_empty);
thinkos_sem_free(sem_full);
printf("\n");
};
void busy_test(void)
{
int th[4];
int x[4];
int y[4];
int d[4];
int sum;
int ref;
int ret;
int i;
printf("---------------------------------------------------------\n");
printf(" - Scheduler test\n");
for (i = 0; i < 4; i++) {
dev[i].enabled = true;
dev[i].cnt = 0;
}
th[0] = thinkos_thread_create(busy_task, (void *)&dev[0],
stack[0], STACK_SIZE,
THINKOS_OPT_PRIORITY(2) |
THINKOS_OPT_ID(8));
th[1] = thinkos_thread_create(busy_task, (void *)&dev[1],
stack[1], STACK_SIZE,
THINKOS_OPT_PRIORITY(4) |
THINKOS_OPT_ID(8));
th[2] = thinkos_thread_create(busy_task, (void *)&dev[2],
stack[2], STACK_SIZE,
THINKOS_OPT_PRIORITY(6) |
THINKOS_OPT_ID(8));
th[3] = thinkos_thread_create(busy_task, (void *)&dev[3],
stack[3], STACK_SIZE,
THINKOS_OPT_PRIORITY(8) |
THINKOS_OPT_ID(8));
printf(" * Threads: %d, %d, %d, %d\n", th[0], th[1], th[2], th[3]);
for (i = 0; i < 8; i++) {
x[0] = dev[0].cnt;
x[1] = dev[1].cnt;
x[2] = dev[2].cnt;
x[3] = dev[3].cnt;
thinkos_sleep(1000);
y[0] = dev[0].cnt;
y[1] = dev[1].cnt;
y[2] = dev[2].cnt;
y[3] = dev[3].cnt;
d[0] = y[0] - x[0];
d[1] = y[1] - x[1];
d[2] = y[2] - x[2];
d[3] = y[3] - x[3];
sum = d[0] + d[1] + d[2] + d[3];
ref = 100 * d[3];
printf(" %8d + %8d + %8d + %8d = %8d (%d idle)\n",
d[0], d[1], d[2], d[3], sum, thinkos_idle_val());
printf(" %d%% %d%% %d%% %d%%\n",
ref / d[0], ref / d[1], ref / d[2], ref / d[3]);
}
for (i = 0; i < 4; i++) {
dev[i].enabled = false;
printf(" * join(%d) ...", th[i]);
ret = thinkos_join(th[i]);
printf(" %d\n", ret);
}
thinkos_sleep(1);
printf("\n");
}
void sched_speed_test(void)
{
// uint32_t stack[4][STACK_SIZE / 4];
// volatile struct my_arg ctrl[4];
int th[4];
int x[4];
int y[4];
int d[4];
int ret;
int i;
printf("---------------------------------------------------------\n");
printf(" - Scheduler speed test\n");
th[0] = thinkos_thread_create(yield_task, (void *)&dev[0],
stack[0], STACK_SIZE,
THINKOS_OPT_PRIORITY(1) |
THINKOS_OPT_ID(2) | THINKOS_OPT_PAUSED);
th[1] = thinkos_thread_create(yield_task, (void *)&dev[1],
stack[1], STACK_SIZE,
THINKOS_OPT_PRIORITY(1) |
THINKOS_OPT_ID(2) | THINKOS_OPT_PAUSED);
th[2] = thinkos_thread_create(yield_task, (void *)&dev[2],
stack[2], STACK_SIZE,
THINKOS_OPT_PRIORITY(2) |
THINKOS_OPT_ID(0) | THINKOS_OPT_PAUSED);
th[3] = thinkos_thread_create(yield_task, (void *)&dev[3],
stack[3], STACK_SIZE,
THINKOS_OPT_PRIORITY(2) |
THINKOS_OPT_ID(0) | THINKOS_OPT_PAUSED);
printf(" * Threads: %d, %d, %d, %d\n", th[0], th[1], th[2], th[3]);
/* The threads where paused on creation, start them */
for (i = 0; i < 4; i++) {
thinkos_resume(th[i]);
}
for (i = 0; i < 5; i++) {
x[0] = dev[0].cnt;
x[1] = dev[1].cnt;
x[2] = dev[2].cnt;
x[3] = dev[3].cnt;
thinkos_sleep(1000);
y[0] = dev[0].cnt;
y[1] = dev[1].cnt;
y[2] = dev[2].cnt;
y[3] = dev[3].cnt;
d[0] = y[0] - x[0];
d[1] = y[1] - x[1];
d[2] = y[2] - x[2];
d[3] = y[3] - x[3];
printf(" %8d + %8d + %8d + %8d = %8d (%d idle)\n",
d[0], d[1], d[2], d[3], d[0] + d[1] + d[2] + d[3],
thinkos_idle_val());
}
for (i = 0; i < 4; i++) {
thinkos_cancel(th[i], i + 30);
printf(" * join(%d) ...", th[i]);
ret = thinkos_join(th[i]);
printf(" %d\n", ret);
}
printf("\n");
};
void busy_test(void)
{
int th[4];
uint32_t x[4];
uint32_t y[4];
uint32_t d[4];
uint32_t sum;
uint32_t ref;
uint32_t wrk;
struct thinkos_rt rt;
uint32_t cycsum;
int ret;
int i;
int j;
printf("---------------------------------------------------------\n");
printf(" - Scheduler test\n");
thinkos_rt_snapshot(&rt);
thinkos_sleep(1000);
thinkos_rt_snapshot(&rt);
cycsum = 0;
for (j = 0; j < THINKOS_THREADS_MAX + 1; ++j) {
uint32_t cyc = rt.cyccnt[j];
cycsum += cyc;
if (cyc > 0) {
printf(" * Thread %d: %9d cycles.\n", j, cyc);
}
}
printf(" * Total: %9d cycles.\n", cycsum);
for (i = 0; i < 4; i++) {
dev[i].enabled = true;
dev[i].cnt = 0;
}
th[0] = thinkos_thread_create(busy_task, (void *)&dev[0],
stack[0], STACK_SIZE |
THINKOS_OPT_PRIORITY(2) |
THINKOS_OPT_ID(8));
th[1] = thinkos_thread_create(busy_task, (void *)&dev[1],
stack[1], STACK_SIZE |
THINKOS_OPT_PRIORITY(4) |
THINKOS_OPT_ID(8));
th[2] = thinkos_thread_create(busy_task, (void *)&dev[2],
stack[2], STACK_SIZE |
THINKOS_OPT_PRIORITY(6) |
THINKOS_OPT_ID(8));
th[3] = thinkos_thread_create(busy_task, (void *)&dev[3],
stack[3], STACK_SIZE |
THINKOS_OPT_PRIORITY(8) |
THINKOS_OPT_ID(8));
printf(" * Thread: %8d %8d %8d %8d\n", th[0], th[1], th[2], th[3]);
for (i = 0; i < 8; i++) {
x[0] = dev[0].cnt;
x[1] = dev[1].cnt;
x[2] = dev[2].cnt;
x[3] = dev[3].cnt;
thinkos_rt_snapshot(&rt);
thinkos_sleep(1000);
thinkos_rt_snapshot(&rt);
y[0] = dev[0].cnt;
y[1] = dev[1].cnt;
y[2] = dev[2].cnt;
y[3] = dev[3].cnt;
d[0] = y[0] - x[0];
d[1] = y[1] - x[1];
d[2] = y[2] - x[2];
d[3] = y[3] - x[3];
sum = d[0] + d[1] + d[2] + d[3];
/* XXX: reusing x, to scale down the deltas.
This is to avoid overflowing the percentage calculations */
x[0] = (d[0] + 50) / 100;
x[1] = (d[1] + 50) / 100;
x[2] = (d[2] + 50) / 100;
x[3] = (d[3] + 50) / 100;
/* scale down the total sum */
wrk = sum / 100;
ref = d[3];
printf("%d.\n", i);
printf(" * Oper: %8d + %8d + %8d + %8d = %8d (%d idle)\n",
d[0], d[1], d[2], d[3], sum, thinkos_idle_val());
printf(" * Work: %7d%% %7d%% %7d%% %7d%% = %7d%%\n",
(d[0] + wrk / 2) / wrk, (d[1] + wrk / 2) / wrk,
(d[2] + wrk / 2) / wrk, (d[3] + wrk / 2) / wrk,
(sum + wrk / 2) / wrk);
printf(" * Nice: %7d%% %7d%% %7d%% %7d%%\n",
(ref + x[0] / 2) / x[0], (ref + x[1] / 2) / x[1],
(ref + x[2] / 2) / x[2], (ref + x[3] / 2) / x[3]);
cycsum = 0;
for (j = 0; j < THINKOS_THREADS_MAX + 1; ++j)
cycsum += rt.cyccnt[j];
printf(" * Cycles: %8d + %8d + %8d + %8d = %8d (%d idle)\n",
rt.cyccnt[th[0]], rt.cyccnt[th[1]],
rt.cyccnt[th[2]], rt.cyccnt[th[3]],
cycsum, rt.cyccnt[THINKOS_THREADS_MAX]);
}
printf("\n");
for (i = 0; i < 4; i++) {
dev[i].enabled = false;
printf(" * join(%d) ...", th[i]);
ret = thinkos_join(th[i]);
printf(" %d\n", ret);
}
printf("---------------------------------------------------------\n");
printf("\n");
}