From: Joyce Kong <joyce.k...@arm.com>
Run ring perf test on all available cores to really verify MPMC operations.
The old way of running on a pair of cores is not enough for MPMC rings. We
used this test case for ring optimization and it was really helpful for
measuring the ring performance in multi-core environment.
Suggested-by: Gavin Hu <gavin...@arm.com>
Signed-off-by: Joyce Kong <joyce.k...@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
Reviewed-by: Dharmik Thakkar <dharmik.thak...@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljed...@arm.com>
Reviewed-by: Gavin Hu <gavin...@arm.com>
---
test/test/test_ring_perf.c | 82 ++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 80 insertions(+), 2 deletions(-)
diff --git a/test/test/test_ring_perf.c b/test/test/test_ring_perf.c
index ebb3939..819d119 100644
--- a/test/test/test_ring_perf.c
+++ b/test/test/test_ring_perf.c
@@ -20,12 +20,17 @@
* * Empty ring dequeue
* * Enqueue/dequeue of bursts in 1 threads
* * Enqueue/dequeue of bursts in 2 threads
+ * * Enqueue/dequeue of bursts in all available threads
*/
#define RING_NAME "RING_PERF"
#define RING_SIZE 4096
#define MAX_BURST 32
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
/*
* the sizes to enqueue and dequeue in testing
* (marked volatile so they won't be seen as compile-time constants)
@@ -248,9 +253,78 @@ run_on_core_pair(struct lcore_pair *cores, struct rte_ring
*r,
}
}
+static rte_atomic32_t synchro;
+static uint64_t queue_count[RTE_MAX_LCORE] = {0};
+
+#define TIME_MS 100
+
+static int
+load_loop_fn(void *p)
+{
+ uint64_t time_diff = 0;
+ uint64_t begin = 0;
+ uint64_t hz = rte_get_timer_hz();
+ uint64_t lcount = 0;
+ const unsigned int lcore = rte_lcore_id();
+ struct thread_params *params = p;
+ void *burst[MAX_BURST] = {0};
+
+ /* wait synchro for slaves */
+ if (lcore != rte_get_master_lcore())
+ while (rte_atomic32_read(&synchro) == 0)
+ rte_pause();
+
+ begin = rte_get_timer_cycles();
+ while (time_diff < hz * TIME_MS / 1000) {
+ rte_ring_mp_enqueue_bulk(params->r, burst, params->size, NULL);
+ rte_ring_mc_dequeue_bulk(params->r, burst, params->size, NULL);
+ lcount++;
+ time_diff = rte_get_timer_cycles() - begin;
+ }
+ queue_count[lcore] = lcount;
+ return 0;
+}
+
+static int
+run_on_all_cores(struct rte_ring *r)
+{
+ uint64_t total = 0;
+ struct thread_params param = {0};
+ unsigned int i, c;
+ for (i = 0; i < ARRAY_SIZE(bulk_sizes); i++) {
+ printf("\nBulk enq/dequeue count on size %u\n", bulk_sizes[i]);
+ param.size = bulk_sizes[i];
+ param.r = r;
+
+ /* clear synchro and start slaves */
+ rte_atomic32_set(&synchro, 0);
+ if (rte_eal_mp_remote_launch(load_loop_fn,
+ ¶m, SKIP_MASTER) < 0)
+ return -1;
+
+ /* start synchro and launch test on master */
+ rte_atomic32_set(&synchro, 1);
+ load_loop_fn(¶m);
+
+ rte_eal_mp_wait_lcore();
+
+ RTE_LCORE_FOREACH(c) {
+ printf("Core [%u] count = %"PRIu64"\n",
+ c, queue_count[c]);
+ total += queue_count[c];
+ }
+
+ printf("Total count (size: %u): %"PRIu64"\n", bulk_sizes[i],
+ total);
+ }
+
+ return 0;
+}
+
/*
- * Test function that determines how long an enqueue + dequeue of a single item
- * takes on a single lcore. Result is for comparison with the bulk enq+deq.
+ * Test function that determines how long an enqueue + dequeue of a single
+ * item takes on a single lcore. Result is for comparison with the bulk
+ * enq+deq.
*/
static void
test_single_enqueue_dequeue(struct rte_ring *r)
@@ -394,6 +468,10 @@ test_ring_perf(void)
printf("\n### Testing using two NUMA nodes ###\n");
run_on_core_pair(&cores, r, enqueue_bulk, dequeue_bulk);
}
+
+ printf("\n### Testing using all slave nodes ###\n");
+ run_on_all_cores(r);
+
rte_ring_free(r);
return 0;
}
--
2.7.4
