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- Log ----------------------------------------------------------------- commit d20f3a639d236066cbd76514df5c4faaa0ae17e9 Author: Brian Brooks brian.brooks@arm.com Date: Tue Apr 4 13:47:59 2017 -0500

test: odp_scheduling: handle dequeueing from a concurrent queue

Signed-off-by: Ola Liljedahl ola.liljedahl@arm.com Reviewed-by: Brian Brooks brian.brooks@arm.com Reviewed-by: Honnappa Nagarahalli honnappa.nagarahalli@arm.com Reviewed-by: Kevin Wang kevin.wang@arm.com Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org

diff --git a/test/common_plat/performance/odp_scheduling.c b/test/common_plat/performance/odp_scheduling.c index c74a0713..38e76257 100644 --- a/test/common_plat/performance/odp_scheduling.c +++ b/test/common_plat/performance/odp_scheduling.c @@ -273,7 +273,7 @@ static int test_plain_queue(int thr, test_globals_t *globals) test_message_t *t_msg; odp_queue_t queue; uint64_t c1, c2, cycles; - int i; + int i, j;

/* Alloc test message */ buf = odp_buffer_alloc(globals->pool); @@ -307,7 +307,15 @@ static int test_plain_queue(int thr, test_globals_t *globals) return -1; }

- ev = odp_queue_deq(queue); + /* When enqueue and dequeue are decoupled (e.g. not using a + * common lock), an enqueued event may not be immediately + * visible to dequeue. So we just try again for a while. */ + for (j = 0; j < 100; j++) { + ev = odp_queue_deq(queue); + if (ev != ODP_EVENT_INVALID) + break; + odp_cpu_pause(); + }

buf = odp_buffer_from_event(ev);

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Summary of changes: test/common_plat/performance/odp_scheduling.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)

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