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test/ticketlock: use compiler atomics for lcores sync

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

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Joyce Kong 2021-07-19 22:51:18 -05:00 committed by Thomas Monjalon
parent 23ce9e0a19
commit f11bdb206a
1 changed files with 4 additions and 6 deletions
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10
app/test/test_ticketlock.c
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@ -9,7 +9,6 @@
#include <sys/queue.h>
#include <unistd.h>
#include <rte_atomic.h>
#include <rte_common.h>
#include <rte_cycles.h>
#include <rte_eal.h>
@ -49,7 +48,7 @@ static rte_ticketlock_t tl_tab[RTE_MAX_LCORE];
static rte_ticketlock_recursive_t tlr;
static unsigned int count;
static rte_atomic32_t synchro;
static uint32_t synchro;
static int
test_ticketlock_per_core(__rte_unused void *arg)
@ -112,8 +111,7 @@ load_loop_fn(void *func_param)
/* 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 (lcore_count[lcore] < MAX_LOOP) {
@ -155,11 +153,11 @@ test_ticketlock_perf(void)
printf("\nTest with lock on %u cores...\n", rte_lcore_count());
/* Clear synchro and start workers */
rte_atomic32_set(&synchro, 0);
__atomic_store_n(&synchro, 0, __ATOMIC_RELAXED);
rte_eal_mp_remote_launch(load_loop_fn, &lock, SKIP_MAIN);
/* start synchro and launch test on main */
rte_atomic32_set(&synchro, 1);
__atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
load_loop_fn(&lock);
rte_eal_mp_wait_lcore();