rculfhash tests: add long hash chains tests

[urcu.git] / tests / test_urcu_hash.c

diff --git a/tests/test_urcu_hash.c b/tests/test_urcu_hash.c
index 3c7cc350d4d02ef7a200893ec2843d2349e1024c..accf3c1ab1ff76a0e37b876da268ba690122e916 100644 (file)
--- a/tests/test_urcu_hash.c
+++ b/tests/test_urcu_hash.c
@@ -114,6 +114,7 @@ unsigned long init_pool_size = DEFAULT_RAND_POOL,
        lookup_pool_size = DEFAULT_RAND_POOL,
        write_pool_size = DEFAULT_RAND_POOL;
 int validate_lookup;
+unsigned long nr_hash_chains;  /* 0: normal table, other: number of hash chains */
 
 int count_pipe[2];
 
@@ -290,6 +291,7 @@ printf("        [not -u nor -s] Add entries (supports redundant keys).\n");
        printf("        [-O size] Init pool size.\n");
        printf("        [-V] Validate lookups of init values (use with filled init pool, same lookup range, with different write range).\n");
        printf("        [-U] Uniqueness test.\n");
+       printf("        [-C] Number of hash chains.\n");
        printf("\n\n");
 }
 
@@ -456,6 +458,9 @@ int main(int argc, char **argv)
                case 'U':
                        test_choice = TEST_HASH_UNIQUE;
                        break;
+               case 'C':
+                       nr_hash_chains = atol(argv[++i]);
+                       break;
                }
        }
 
@@ -528,6 +533,8 @@ int main(int argc, char **argv)
                lookup_pool_offset, lookup_pool_size);
        printf_verbose("Update pool size offset %lu size %lu.\n",
                write_pool_offset, write_pool_size);
+       printf_verbose("Number of hash chains: %lu.\n",
+               nr_hash_chains);
        printf_verbose("thread %-6s, thread id : %lx, tid %lu\n",
                        "main", pthread_self(), (unsigned long)gettid());