diff options
Diffstat (limited to 'test/test/test_spinlock.c')
-rw-r--r-- | test/test/test_spinlock.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/test/test/test_spinlock.c b/test/test/test_spinlock.c index 73bff128..6ac74959 100644 --- a/test/test/test_spinlock.c +++ b/test/test/test_spinlock.c @@ -96,16 +96,16 @@ test_spinlock_recursive_per_core(__attribute__((unused)) void *arg) } static rte_spinlock_t lk = RTE_SPINLOCK_INITIALIZER; -static uint64_t lock_count[RTE_MAX_LCORE] = {0}; +static uint64_t time_count[RTE_MAX_LCORE] = {0}; -#define TIME_MS 100 +#define MAX_LOOP 10000 static int load_loop_fn(void *func_param) { uint64_t time_diff = 0, begin; uint64_t hz = rte_get_timer_hz(); - uint64_t lcount = 0; + volatile uint64_t lcount = 0; const int use_lock = *(int*)func_param; const unsigned lcore = rte_lcore_id(); @@ -114,17 +114,15 @@ load_loop_fn(void *func_param) while (rte_atomic32_read(&synchro) == 0); begin = rte_get_timer_cycles(); - while (time_diff < hz * TIME_MS / 1000) { + while (lcount < MAX_LOOP) { if (use_lock) rte_spinlock_lock(&lk); lcount++; if (use_lock) rte_spinlock_unlock(&lk); - /* delay to make lock duty cycle slighlty realistic */ - rte_delay_us(1); - time_diff = rte_get_timer_cycles() - begin; } - lock_count[lcore] = lcount; + time_diff = rte_get_timer_cycles() - begin; + time_count[lcore] = time_diff * 1000000 / hz; return 0; } @@ -138,14 +136,16 @@ test_spinlock_perf(void) printf("\nTest with no lock on single core...\n"); load_loop_fn(&lock); - printf("Core [%u] count = %"PRIu64"\n", lcore, lock_count[lcore]); - memset(lock_count, 0, sizeof(lock_count)); + printf("Core [%u] Cost Time = %"PRIu64" us\n", lcore, + time_count[lcore]); + memset(time_count, 0, sizeof(time_count)); printf("\nTest with lock on single core...\n"); lock = 1; load_loop_fn(&lock); - printf("Core [%u] count = %"PRIu64"\n", lcore, lock_count[lcore]); - memset(lock_count, 0, sizeof(lock_count)); + printf("Core [%u] Cost Time = %"PRIu64" us\n", lcore, + time_count[lcore]); + memset(time_count, 0, sizeof(time_count)); printf("\nTest with lock on %u cores...\n", rte_lcore_count()); @@ -160,11 +160,12 @@ test_spinlock_perf(void) rte_eal_mp_wait_lcore(); RTE_LCORE_FOREACH(i) { - printf("Core [%u] count = %"PRIu64"\n", i, lock_count[i]); - total += lock_count[i]; + printf("Core [%u] Cost Time = %"PRIu64" us\n", i, + time_count[i]); + total += time_count[i]; } - printf("Total count = %"PRIu64"\n", total); + printf("Total Cost Time = %"PRIu64" us\n", total); return 0; } |