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test/rwlock: use compiler atomics for lcores sync

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Convert rte_atomic usages to compiler atomic built-ins for lcores
sync in rwlock 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 22:51:20 -05:00 committed by Thomas Monjalon
parent d2794d6719
commit fb2a9bd266
1 changed files with 4 additions and 6 deletions
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10
app/test/test_rwlock.c
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@ -13,7 +13,6 @@
#include <rte_memory.h>
#include <rte_per_lcore.h>
#include <rte_launch.h>
#include <rte_atomic.h>
#include <rte_rwlock.h>
#include <rte_eal.h>
#include <rte_lcore.h>
@ -36,7 +35,7 @@
static rte_rwlock_t sl;
static rte_rwlock_t sl_tab[RTE_MAX_LCORE];
static rte_atomic32_t synchro;
static uint32_t synchro;
enum {
LC_TYPE_RDLOCK,
@ -102,8 +101,7 @@ load_loop_fn(__rte_unused void *arg)
/* wait synchro for workers */
if (lcore != rte_get_main_lcore())
while (rte_atomic32_read(&synchro) == 0)
;
rte_wait_until_equal_32(&synchro, 1, __ATOMIC_RELAXED);
begin = rte_rdtsc_precise();
while (lcount < MAX_LOOP) {
@ -136,12 +134,12 @@ test_rwlock_perf(void)
printf("\nRwlock Perf Test on %u cores...\n", rte_lcore_count());
/* clear synchro and start workers */
rte_atomic32_set(&synchro, 0);
__atomic_store_n(&synchro, 0, __ATOMIC_RELAXED);
if (rte_eal_mp_remote_launch(load_loop_fn, NULL, SKIP_MAIN) < 0)
return -1;
/* start synchro and launch test on main */
rte_atomic32_set(&synchro, 1);
__atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
load_loop_fn(NULL);
rte_eal_mp_wait_lcore();