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From: Gavin Hu <gavin.hu@arm.com>
To: dev@dpdk.org
Cc: nd@arm.com, thomas@monjalon.net, jerinj@marvell.com,
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Date: Fri, 8 Mar 2019 15:16:39 +0800
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Subject: [dpdk-dev] [PATCH v6 1/3] test/spinlock: dealy 1 us to create
contention
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Quickly taking and releasing the spinlock can't hit the contentions,
delay 1 us to create contention stress, this can help really show
the performance of spinlock implementation.
Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org
Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Ruifeng Wang <Ruifeng.Wang@arm.com>
Reviewed-by: Joyce Kong <Joyce.Kong@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <Ola.Liljedahl@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
---
app/test/test_spinlock.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/app/test/test_spinlock.c b/app/test/test_spinlock.c
index 73bff12..6795195 100644
--- a/app/test/test_spinlock.c
+++ b/app/test/test_spinlock.c
@@ -120,8 +120,6 @@ load_loop_fn(void *func_param)
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;
--
2.7.4