[PATCH v2 3/3] app/eventdev: prevent mempool exhaustion

[pbhagavatula]

From: Pavan Nikhilesh <pbhagavat...@marvell.com>

Prevent mempool exhaustion due to elements being stuck in lcore
local caches.

Signed-off-by: Pavan Nikhilesh <pbhagavat...@marvell.com>
---
 app/test-eventdev/test_perf_common.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/app/test-eventdev/test_perf_common.c 
b/app/test-eventdev/test_perf_common.c
index 68af3cb346..5e0255cfeb 100644
--- a/app/test-eventdev/test_perf_common.c
+++ b/app/test-eventdev/test_perf_common.c
@@ -1859,34 +1859,35 @@ int
 perf_mempool_setup(struct evt_test *test, struct evt_options *opt)
 {
        struct test_perf *t = evt_test_priv(test);
+       unsigned int cache_sz;
 
+       cache_sz = RTE_MIN(RTE_MEMPOOL_CACHE_MAX_SIZE, (opt->pool_sz / 1.5) / 
t->nb_workers);
        if (opt->prod_type == EVT_PROD_TYPE_SYNT ||
                        opt->prod_type == EVT_PROD_TYPE_EVENT_TIMER_ADPTR) {
                t->pool = rte_mempool_create(test->name, /* mempool name */
                                opt->pool_sz, /* number of elements*/
                                sizeof(struct perf_elt), /* element size*/
-                               512, /* cache size*/
+                               cache_sz, /* cache size*/
                                0, NULL, NULL,
                                perf_elt_init, /* obj constructor */
                                NULL, opt->socket_id, 0); /* flags */
        } else if (opt->prod_type == EVT_PROD_TYPE_EVENT_CRYPTO_ADPTR &&
-                       opt->crypto_op_type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)  {
+                  opt->crypto_op_type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
                t->pool = rte_mempool_create(test->name, /* mempool name */
                                opt->pool_sz, /* number of elements*/
                                sizeof(struct perf_elt) + 
modex_test_case.result_len,
                                /* element size*/
-                               512, /* cache size*/
+                               cache_sz, /* cache size*/
                                0, NULL, NULL,
                                NULL, /* obj constructor */
                                NULL, opt->socket_id, 0); /* flags */
        } else {
                t->pool = rte_pktmbuf_pool_create(test->name, /* mempool name */
                                opt->pool_sz, /* number of elements*/
-                               512, /* cache size*/
+                               cache_sz, /* cache size*/
                                0,
                                RTE_MBUF_DEFAULT_BUF_SIZE,
                                opt->socket_id); /* flags */
-
        }
 
        if (t->pool == NULL) {
-- 
2.25.1