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Merged
nashif merged 2 commits into from
Nov 16, 2024
Merged

tests: sched: Add busy threads for SMP #81051

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tests: sched: Add busy threads for SMP
ycsin Nov 7, 2024
b928d26
tests: benchmarks/sched: limit CPU to 1 for Intel ADSP ACE
ycsin Nov 8, 2024
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27 changes: 27 additions & 0 deletions tests/benchmarks/sched/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,15 @@
static K_THREAD_STACK_DEFINE(partner_stack, 1024);
static struct k_thread partner_thread;

#if (CONFIG_MP_MAX_NUM_CPUS > 1)
static struct k_thread busy_thread[CONFIG_MP_MAX_NUM_CPUS - 1];

#define BUSY_THREAD_STACK_SIZE (1024 + CONFIG_TEST_EXTRA_STACK_SIZE)

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tests/benchmarks/sched/src/main.c:43 
-#define BUSY_THREAD_STACK_SIZE  (1024 + CONFIG_TEST_EXTRA_STACK_SIZE)
+#define BUSY_THREAD_STACK_SIZE (1024 + CONFIG_TEST_EXTRA_STACK_SIZE)
static K_THREAD_STACK_ARRAY_DEFINE(busy_thread_stack, CONFIG_MP_MAX_NUM_CPUS - 1,
BUSY_THREAD_STACK_SIZE);
#endif /* (CONFIG_MP_MAX_NUM_CPUS > 1) */

_wait_q_t waitq;

enum {
Expand Down Expand Up @@ -88,8 +97,26 @@
}
}

#if (CONFIG_MP_MAX_NUM_CPUS > 1)
static void busy_thread_entry(void *arg1, void *arg2, void *arg3)
{
while (true) {
}
}
#endif /* (CONFIG_MP_MAX_NUM_CPUS > 1) */

int main(void)
{
#if (CONFIG_MP_MAX_NUM_CPUS > 1)
/* Spawn busy threads that will execute on the other cores */
for (uint32_t i = 0; i < CONFIG_MP_MAX_NUM_CPUS - 1; i++) {
k_thread_create(&busy_thread[i], busy_thread_stack[i],
BUSY_THREAD_STACK_SIZE, busy_thread_entry,
NULL, NULL, NULL,
K_HIGHEST_THREAD_PRIO, 0, K_NO_WAIT);
}

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tests/benchmarks/sched/src/main.c:117 
-		k_thread_create(&busy_thread[i], busy_thread_stack[i],
-				BUSY_THREAD_STACK_SIZE, busy_thread_entry,
-				NULL, NULL, NULL,
-				K_HIGHEST_THREAD_PRIO, 0, K_NO_WAIT);
+		k_thread_create(&busy_thread[i], busy_thread_stack[i], BUSY_THREAD_STACK_SIZE,
+				busy_thread_entry, NULL, NULL, NULL, K_HIGHEST_THREAD_PRIO, 0,
+				K_NO_WAIT);
#endif /* (CONFIG_MP_MAX_NUM_CPUS > 1) */

z_waitq_init(&waitq);

int main_prio = k_thread_priority_get(k_current_get());
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