[dpdk-dev] [PATCH v2] test/hash: reset iter and found in perf test

[Dharmik Thakkar]

Reset 'iter' and 'tbl_rw_test_param.found' on each iteration
to give correct result for lost and duplicated keys.

This patch also changes the default return value of the test to -1
when not enough resources are provided.

Fixes: 0eb3726ebcf14 ("test/hash: add test for read/write concurrency")
Cc: sta...@dpdk.org

Signed-off-by: Dharmik Thakkar <dharmik.thak...@arm.com>
Reviewed-by: Ferruh Yigit <ferruh.yi...@intel.com>
Reviewed-by: Yipeng Wang <yipeng1.w...@intel.com>
--
v2:
* Update commit message
* Change 'found' array type to uint8_t
* Restore declaration of 'iter' to the start
---
 test/test/test_hash_readwrite.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/test/test/test_hash_readwrite.c b/test/test/test_hash_readwrite.c
index 6b695ce6e444..480ae97d857d 100644
--- a/test/test/test_hash_readwrite.c
+++ b/test/test/test_hash_readwrite.c
@@ -39,7 +39,7 @@ static struct perf htm_results, non_htm_results;
 
 struct {
        uint32_t *keys;
-       uint32_t *found;
+       uint8_t *found;
        uint32_t num_insert;
        uint32_t rounded_tot_insert;
        struct rte_hash *h;
@@ -126,7 +126,7 @@ init_params(int use_ext, int use_htm, int use_jhash)
        unsigned int i;
 
        uint32_t *keys = NULL;
-       uint32_t *found = NULL;
+       uint8_t *found = NULL;
        struct rte_hash *handle;
 
        struct rte_hash_parameters hash_params = {
@@ -173,7 +173,7 @@ init_params(int use_ext, int use_htm, int use_jhash)
                goto err;
        }
 
-       found = rte_zmalloc(NULL, sizeof(uint32_t) * TOTAL_ENTRY, 0);
+       found = rte_zmalloc(NULL, sizeof(uint8_t) * TOTAL_ENTRY, 0);
        if (found == NULL) {
                printf("RTE_ZMALLOC failed\n");
                goto err;
@@ -361,7 +361,7 @@ test_hash_readwrite_perf(struct perf *perf_results, int 
use_htm,
 
        const void *next_key;
        void *next_data;
-       uint32_t iter = 0;
+       uint32_t iter;
        int use_jhash = 0;
 
        uint32_t duplicated_keys = 0;
@@ -536,6 +536,8 @@ test_hash_readwrite_perf(struct perf *perf_results, int 
use_htm,
 
                rte_eal_mp_wait_lcore();
 
+               iter = 0;
+               memset(tbl_rw_test_param.found, 0, TOTAL_ENTRY);
                while (rte_hash_iterate(tbl_rw_test_param.h,
                                &next_key, &next_data, &iter) >= 0) {
                        /* Search for the key in the list of keys added .*/
@@ -619,7 +621,7 @@ test_hash_readwrite_main(void)
        if (rte_lcore_count() <= 2) {
                printf("More than two lcores are required "
                        "to do read write test\n");
-               return 0;
+               return -1;
        }
 
        RTE_LCORE_FOREACH_SLAVE(core_id) {
-- 
2.17.1