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test/mcslock: use compiler atomics for lcores sync

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Convert rte_atomic usages to compiler atomic built-ins for lcores
sync in mcslock testcases.

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Joyce Kong 2021-07-19 22:51:21 -05:00 committed by Thomas Monjalon
parent fb2a9bd266
commit 8d08f7c9ae
1 changed files with 6 additions and 8 deletions
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14
app/test/test_mcslock.c
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@ -17,7 +17,6 @@
#include <rte_lcore.h> #include <rte_lcore.h>
#include <rte_cycles.h> #include <rte_cycles.h>
#include <rte_mcslock.h> #include <rte_mcslock.h>
#include <rte_atomic.h>
#include "test.h" #include "test.h"
@ -43,7 +42,7 @@ rte_mcslock_t *p_ml_perf;
static unsigned int count; static unsigned int count;
static rte_atomic32_t synchro; static uint32_t synchro;
static int static int
test_mcslock_per_core(__rte_unused void *arg) test_mcslock_per_core(__rte_unused void *arg)
@ -76,8 +75,7 @@ load_loop_fn(void *func_param)
rte_mcslock_t ml_perf_me; rte_mcslock_t ml_perf_me;
/* wait synchro */ /* wait synchro */
while (rte_atomic32_read(&synchro) == 0) rte_wait_until_equal_32(&synchro, 1, __ATOMIC_RELAXED);
;
begin = rte_get_timer_cycles(); begin = rte_get_timer_cycles();
while (lcount < MAX_LOOP) { while (lcount < MAX_LOOP) {
@ -102,15 +100,15 @@ test_mcslock_perf(void)
const unsigned int lcore = rte_lcore_id(); const unsigned int lcore = rte_lcore_id();
printf("\nTest with no lock on single core...\n"); printf("\nTest with no lock on single core...\n");
rte_atomic32_set(&synchro, 1); __atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
load_loop_fn(&lock); load_loop_fn(&lock);
printf("Core [%u] Cost Time = %"PRIu64" us\n", printf("Core [%u] Cost Time = %"PRIu64" us\n",
lcore, time_count[lcore]); lcore, time_count[lcore]);
memset(time_count, 0, sizeof(time_count)); memset(time_count, 0, sizeof(time_count));
printf("\nTest with lock on single core...\n"); printf("\nTest with lock on single core...\n");
__atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
lock = 1; lock = 1;
rte_atomic32_set(&synchro, 1);
load_loop_fn(&lock); load_loop_fn(&lock);
printf("Core [%u] Cost Time = %"PRIu64" us\n", printf("Core [%u] Cost Time = %"PRIu64" us\n",
lcore, time_count[lcore]); lcore, time_count[lcore]);
@ -118,11 +116,11 @@ test_mcslock_perf(void)
printf("\nTest with lock on %u cores...\n", (rte_lcore_count())); printf("\nTest with lock on %u cores...\n", (rte_lcore_count()));
rte_atomic32_set(&synchro, 0); __atomic_store_n(&synchro, 0, __ATOMIC_RELAXED);
rte_eal_mp_remote_launch(load_loop_fn, &lock, SKIP_MAIN); rte_eal_mp_remote_launch(load_loop_fn, &lock, SKIP_MAIN);
/* start synchro and launch test on main */ /* start synchro and launch test on main */
rte_atomic32_set(&synchro, 1); __atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
load_loop_fn(&lock); load_loop_fn(&lock);
rte_eal_mp_wait_lcore(); rte_eal_mp_wait_lcore();