The test is to benchmark the performance of spinlock by counting the
number of spinlock acquire and release operations within the specified
time.
A typical pair of lock and unlock operations costs tens or hundreds of
nano seconds, in comparison to this, delaying 1 us outside of the locked
region is too much, compromising the goal of benchmarking the lock and
unlock performance.
Fixes: af75078fece3 ("first public release")
Cc: [email protected]
Signed-off-by: Gavin Hu <[email protected]>
Reviewed-by: Ruifeng Wang <[email protected]>
Reviewed-by: Joyce Kong <[email protected]>
Reviewed-by: Phil Yang <[email protected]>
Reviewed-by: Honnappa Nagarahalli <[email protected]>
Reviewed-by: Ola Liljedahl <[email protected]>
Acked-by: Jerin Jacob <[email protected]>
---
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
