app/test/test_hash_readwrite_lf_perf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Arm Limited
   3  */
   4
   5 #include <inttypes.h>
   6 #include <locale.h>
   7
   8 #include <rte_cycles.h>
   9 #include <rte_hash.h>
  10 #include <rte_hash_crc.h>
  11 #include <rte_jhash.h>
  12 #include <rte_launch.h>
  13 #include <rte_malloc.h>
  14 #include <rte_random.h>
  15 #include <rte_spinlock.h>
  16
  17 #include "test.h"
  18
  19 #ifndef RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF
  20 #define RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF 0
  21 #endif
  22
  23 #define BULK_LOOKUP_SIZE 32
  24
  25 #define RUN_WITH_HTM_DISABLED 0
  26
  27 #if (RUN_WITH_HTM_DISABLED)
  28
  29 #define TOTAL_ENTRY (5*1024)
  30 #define TOTAL_INSERT (5*1024)
  31
  32 #else
  33
  34 #define TOTAL_ENTRY (4*1024*1024)
  35 #define TOTAL_INSERT (4*1024*1024)
  36
  37 #endif
  38
  39 #define READ_FAIL 1
  40 #define READ_PASS_NO_KEY_SHIFTS 2
  41 #define READ_PASS_SHIFT_PATH 4
  42 #define READ_PASS_NON_SHIFT_PATH 8
  43 #define BULK_LOOKUP 16
  44 #define READ_PASS_KEY_SHIFTS_EXTBKT 32
  45
  46 #define WRITE_NO_KEY_SHIFT 0
  47 #define WRITE_KEY_SHIFT 1
  48 #define WRITE_EXT_BKT 2
  49
  50 #define NUM_TEST 3
  51 static unsigned int rwc_core_cnt[NUM_TEST] = {1, 2, 4};
  52
  53 struct rwc_perf {
  54         uint32_t w_no_ks_r_hit[2][NUM_TEST];
  55         uint32_t w_no_ks_r_miss[2][NUM_TEST];
  56         uint32_t w_ks_r_hit_nsp[2][NUM_TEST];
  57         uint32_t w_ks_r_hit_sp[2][NUM_TEST];
  58         uint32_t w_ks_r_miss[2][NUM_TEST];
  59         uint32_t multi_rw[NUM_TEST - 1][2][NUM_TEST];
  60         uint32_t w_ks_r_hit_extbkt[2][NUM_TEST];
  61 };
  62
  63 static struct rwc_perf rwc_lf_results, rwc_non_lf_results;
  64
  65 static struct {
  66         uint32_t *keys;
  67         uint32_t *keys_no_ks;
  68         uint32_t *keys_ks;
  69         uint32_t *keys_absent;
  70         uint32_t *keys_shift_path;
  71         uint32_t *keys_non_shift_path;
  72         uint32_t *keys_ext_bkt;
  73         uint32_t *keys_ks_extbkt;
  74         uint32_t count_keys_no_ks;
  75         uint32_t count_keys_ks;
  76         uint32_t count_keys_absent;
  77         uint32_t count_keys_shift_path;
  78         uint32_t count_keys_non_shift_path;
  79         uint32_t count_keys_extbkt;
  80         uint32_t count_keys_ks_extbkt;
  81         uint32_t single_insert;
  82         struct rte_hash *h;
  83 } tbl_rwc_test_param;
  84
  85 static uint64_t gread_cycles;
  86 static uint64_t greads;
  87
  88 static volatile uint8_t writer_done;
  89
  90 static uint16_t enabled_core_ids[RTE_MAX_LCORE];
  91
  92 static uint8_t *scanned_bkts;
  93
  94 static inline uint16_t
  95 get_short_sig(const hash_sig_t hash)
  96 {
  97         return hash >> 16;
  98 }
  99
 100 static inline uint32_t
 101 get_prim_bucket_index(__rte_unused const struct rte_hash *h,
 102                       const hash_sig_t hash)
 103 {
 104         uint32_t num_buckets;
 105         uint32_t bucket_bitmask;
 106         num_buckets  = rte_align32pow2(TOTAL_ENTRY) / 8;
 107         bucket_bitmask = num_buckets - 1;
 108         return hash & bucket_bitmask;
 109 }
 110
 111 static inline uint32_t
 112 get_alt_bucket_index(__rte_unused const struct rte_hash *h,
 113                         uint32_t cur_bkt_idx, uint16_t sig)
 114 {
 115         uint32_t num_buckets;
 116         uint32_t bucket_bitmask;
 117         num_buckets  = rte_align32pow2(TOTAL_ENTRY) / 8;
 118         bucket_bitmask = num_buckets - 1;
 119         return (cur_bkt_idx ^ sig) & bucket_bitmask;
 120 }
 121
 122
 123 static inline int
 124 get_enabled_cores_list(void)
 125 {
 126         uint32_t i = 0;
 127         uint16_t core_id;
 128         uint32_t max_cores = rte_lcore_count();
 129         RTE_LCORE_FOREACH(core_id) {
 130                 enabled_core_ids[i] = core_id;
 131                 i++;
 132         }
 133
 134         if (i != max_cores) {
 135                 printf("Number of enabled cores in list is different from "
 136                         "number given by rte_lcore_count()\n");
 137                 return -1;
 138         }
 139         return 0;
 140 }
 141
 142 static int
 143 init_params(int rwc_lf, int use_jhash, int htm, int ext_bkt)
 144 {
 145         struct rte_hash *handle;
 146
 147         struct rte_hash_parameters hash_params = {
 148                 .entries = TOTAL_ENTRY,
 149                 .key_len = sizeof(uint32_t),
 150                 .hash_func_init_val = 0,
 151                 .socket_id = rte_socket_id(),
 152         };
 153
 154         if (use_jhash)
 155                 hash_params.hash_func = rte_jhash;
 156         else
 157                 hash_params.hash_func = rte_hash_crc;
 158
 159         if (rwc_lf)
 160                 hash_params.extra_flag =
 161                         RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF |
 162                         RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD;
 163         else if (htm)
 164                 hash_params.extra_flag =
 165                         RTE_HASH_EXTRA_FLAGS_TRANS_MEM_SUPPORT |
 166                         RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY |
 167                         RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD;
 168         else
 169                 hash_params.extra_flag =
 170                         RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY |
 171                         RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD;
 172
 173         if (ext_bkt)
 174                 hash_params.extra_flag |= RTE_HASH_EXTRA_FLAGS_EXT_TABLE;
 175
 176         hash_params.name = "tests";
 177
 178         handle = rte_hash_create(&hash_params);
 179         if (handle == NULL) {
 180                 printf("hash creation failed");
 181                 return -1;
 182         }
 183
 184         tbl_rwc_test_param.h = handle;
 185         return 0;
 186 }
 187
 188 static inline int
 189 check_bucket(uint32_t bkt_idx, uint32_t key)
 190 {
 191         uint32_t iter;
 192         uint32_t prev_iter;
 193         uint32_t diff;
 194         uint32_t count = 0;
 195         const void *next_key;
 196         void *next_data;
 197
 198         /* Temporary bucket to hold the keys */
 199         uint32_t keys_in_bkt[8];
 200
 201         iter = bkt_idx * 8;
 202         prev_iter = iter;
 203         while (rte_hash_iterate(tbl_rwc_test_param.h,
 204                         &next_key, &next_data, &iter) >= 0) {
 205
 206                 /* Check for duplicate entries */
 207                 if (*(const uint32_t *)next_key == key)
 208                         return 1;
 209
 210                 /* Identify if there is any free entry in the bucket */
 211                 diff = iter - prev_iter;
 212                 if (diff > 1)
 213                         break;
 214
 215                 prev_iter = iter;
 216                 keys_in_bkt[count] = *(const uint32_t *)next_key;
 217                 count++;
 218
 219                 /* All entries in the bucket are occupied */
 220                 if (count == 8) {
 221
 222                         /*
 223                          * Check if bucket was not scanned before, to avoid
 224                          * duplicate keys.
 225                          */
 226                         if (scanned_bkts[bkt_idx] == 0) {
 227                                 /*
 228                                  * Since this bucket (pointed to by bkt_idx) is
 229                                  * full, it is likely that key(s) in this
 230                                  * bucket will be on the shift path, when
 231                                  * collision occurs. Thus, add it to
 232                                  * keys_shift_path.
 233                                  */
 234                                 memcpy(tbl_rwc_test_param.keys_shift_path +
 235                                         tbl_rwc_test_param.count_keys_shift_path
 236                                         , keys_in_bkt, 32);
 237                                 tbl_rwc_test_param.count_keys_shift_path += 8;
 238                                 scanned_bkts[bkt_idx] = 1;
 239                         }
 240                         return -1;
 241                 }
 242         }
 243         return 0;
 244 }
 245
 246 static int
 247 generate_keys(void)
 248 {
 249         uint32_t *keys = NULL;
 250         uint32_t *keys_no_ks = NULL;
 251         uint32_t *keys_ks = NULL;
 252         uint32_t *keys_absent = NULL;
 253         uint32_t *keys_non_shift_path = NULL;
 254         uint32_t *keys_ext_bkt = NULL;
 255         uint32_t *keys_ks_extbkt = NULL;
 256         uint32_t *found = NULL;
 257         uint32_t count_keys_no_ks = 0;
 258         uint32_t count_keys_ks = 0;
 259         uint32_t count_keys_extbkt = 0;
 260         uint32_t i;
 261
 262         if (init_params(0, 0, 0, 0) != 0)
 263                 return -1;
 264
 265         /*
 266          * keys will consist of a) keys whose addition to the hash table
 267          * will result in shifting of the existing keys to their alternate
 268          * locations b) keys whose addition to the hash table will not result
 269          * in shifting of the existing keys.
 270          */
 271         keys = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 272         if (keys == NULL) {
 273                 printf("RTE_MALLOC failed\n");
 274                 goto err;
 275         }
 276
 277         /*
 278          * keys_no_ks (no key-shifts): Subset of 'keys' - consists of keys  that
 279          * will NOT result in shifting of the existing keys to their alternate
 280          * locations. Roughly around 900K keys.
 281          */
 282         keys_no_ks = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 283         if (keys_no_ks == NULL) {
 284                 printf("RTE_MALLOC failed\n");
 285                 goto err;
 286         }
 287
 288         /*
 289          * keys_ks (key-shifts): Subset of 'keys' - consists of keys that will
 290          * result in shifting of the existing keys to their alternate locations.
 291          * Roughly around 146K keys. There might be repeating keys. More code is
 292          * required to filter out these keys which will complicate the test case
 293          */
 294         keys_ks = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 295         if (keys_ks == NULL) {
 296                 printf("RTE_MALLOC failed\n");
 297                 goto err;
 298         }
 299
 300         /* Used to identify keys not inserted in the hash table */
 301         found = rte_zmalloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 302         if (found == NULL) {
 303                 printf("RTE_MALLOC failed\n");
 304                 goto err;
 305         }
 306
 307         /*
 308          * This consist of keys not inserted to the hash table.
 309          * Used to test perf of lookup on keys that do not exist in the table.
 310          */
 311         keys_absent = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 312         if (keys_absent == NULL) {
 313                 printf("RTE_MALLOC failed\n");
 314                 goto err;
 315         }
 316
 317         /*
 318          * This consist of keys which are likely to be on the shift
 319          * path (i.e. being moved to alternate location), when collision occurs
 320          * on addition of a key to an already full primary bucket.
 321          * Used to test perf of lookup on keys that are on the shift path.
 322          */
 323         tbl_rwc_test_param.keys_shift_path = rte_malloc(NULL, sizeof(uint32_t) *
 324                                                         TOTAL_INSERT, 0);
 325         if (tbl_rwc_test_param.keys_shift_path == NULL) {
 326                 printf("RTE_MALLOC failed\n");
 327                 goto err;
 328         }
 329
 330         /*
 331          * This consist of keys which are never on the shift
 332          * path (i.e. being moved to alternate location), when collision occurs
 333          * on addition of a key to an already full primary bucket.
 334          * Used to test perf of lookup on keys that are not on the shift path.
 335          */
 336         keys_non_shift_path = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT,
 337                                          0);
 338         if (keys_non_shift_path == NULL) {
 339                 printf("RTE_MALLOC failed\n");
 340                 goto err;
 341         }
 342
 343         /*
 344          * This consist of keys which will be stored in extended buckets
 345          */
 346         keys_ext_bkt = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 347         if (keys_ext_bkt == NULL) {
 348                 printf("RTE_MALLOC failed\n");
 349                 goto err;
 350         }
 351
 352         /*
 353          * This consist of keys which when deleted causes shifting of keys
 354          * in extended buckets to respective secondary buckets
 355          */
 356         keys_ks_extbkt = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_INSERT, 0);
 357         if (keys_ks_extbkt == NULL) {
 358                 printf("RTE_MALLOC failed\n");
 359                 goto err;
 360         }
 361
 362         hash_sig_t sig;
 363         uint32_t prim_bucket_idx;
 364         uint32_t sec_bucket_idx;
 365         uint16_t short_sig;
 366         uint32_t num_buckets;
 367         num_buckets  = rte_align32pow2(TOTAL_ENTRY) / 8;
 368         int ret;
 369
 370         /*
 371          * Used to mark bkts in which at least one key was shifted to its
 372          * alternate location
 373          */
 374         scanned_bkts = rte_malloc(NULL, sizeof(uint8_t) * num_buckets, 0);
 375         if (scanned_bkts == NULL) {
 376                 printf("RTE_MALLOC failed\n");
 377                 goto err;
 378         }
 379
 380         tbl_rwc_test_param.keys = keys;
 381         tbl_rwc_test_param.keys_no_ks = keys_no_ks;
 382         tbl_rwc_test_param.keys_ks = keys_ks;
 383         tbl_rwc_test_param.keys_absent = keys_absent;
 384         tbl_rwc_test_param.keys_non_shift_path = keys_non_shift_path;
 385         tbl_rwc_test_param.keys_ext_bkt = keys_ext_bkt;
 386         tbl_rwc_test_param.keys_ks_extbkt = keys_ks_extbkt;
 387         /* Generate keys by adding previous two keys, neglect overflow */
 388         printf("Generating keys...\n");
 389         keys[0] = 0;
 390         keys[1] = 1;
 391         for (i = 2; i < TOTAL_INSERT; i++)
 392                 keys[i] = keys[i-1] + keys[i-2];
 393
 394         /* Segregate keys into keys_no_ks and keys_ks */
 395         for (i = 0; i < TOTAL_INSERT; i++) {
 396                 /* Check if primary bucket has space.*/
 397                 sig = rte_hash_hash(tbl_rwc_test_param.h,
 398                                         tbl_rwc_test_param.keys+i);
 399                 prim_bucket_idx = get_prim_bucket_index(tbl_rwc_test_param.h,
 400                                                         sig);
 401                 ret = check_bucket(prim_bucket_idx, keys[i]);
 402                 if (ret < 0) {
 403                         /*
 404                          * Primary bucket is full, this key will result in
 405                          * shifting of the keys to their alternate locations.
 406                          */
 407                         keys_ks[count_keys_ks] = keys[i];
 408                         count_keys_ks++;
 409                 } else if (ret == 0) {
 410                         /*
 411                          * Primary bucket has space, this key will not result in
 412                          * shifting of the keys. Hence, add key to the table.
 413                          */
 414                         ret = rte_hash_add_key_data(tbl_rwc_test_param.h,
 415                                                         keys+i,
 416                                                         (void *)((uintptr_t)i));
 417                         if (ret < 0) {
 418                                 printf("writer failed %"PRIu32"\n", i);
 419                                 break;
 420                         }
 421                         keys_no_ks[count_keys_no_ks] = keys[i];
 422                         count_keys_no_ks++;
 423                 }
 424         }
 425
 426         for (i = 0; i < count_keys_no_ks; i++) {
 427                 /*
 428                  * Identify keys in keys_no_ks with value less than
 429                  * 4M (HTM enabled) OR 5K (HTM disabled)
 430                  */
 431                 if (keys_no_ks[i] < TOTAL_INSERT)
 432                         found[keys_no_ks[i]]++;
 433         }
 434
 435         for (i = 0; i < count_keys_ks; i++) {
 436                 /*
 437                  * Identify keys in keys_ks with value less than
 438                  * 4M (HTM enabled) OR 5K (HTM disabled)
 439                  */
 440                 if (keys_ks[i] < TOTAL_INSERT)
 441                         found[keys_ks[i]]++;
 442         }
 443
 444         uint32_t count_keys_absent = 0;
 445         for (i = 0; i < TOTAL_INSERT; i++) {
 446                 /*
 447                  * Identify missing keys between 0 and
 448                  * 4M (HTM enabled) OR 5K (HTM disabled)
 449                  */
 450                 if (found[i] == 0)
 451                         keys_absent[count_keys_absent++] = i;
 452         }
 453
 454         /* Find keys that will not be on the shift path */
 455         uint32_t iter;
 456         const void *next_key;
 457         void *next_data;
 458         uint32_t count = 0;
 459         for (i = 0; i < num_buckets; i++) {
 460                 /* Check bucket for no keys shifted to alternate locations */
 461                 if (scanned_bkts[i] == 0) {
 462                         iter = i * 8;
 463                         while (rte_hash_iterate(tbl_rwc_test_param.h,
 464                                 &next_key, &next_data, &iter) >= 0) {
 465
 466                                 /* Check if key belongs to the current bucket */
 467                                 if (i >= (iter-1)/8)
 468                                         keys_non_shift_path[count++]
 469                                                 = *(const uint32_t *)next_key;
 470                                 else
 471                                         break;
 472                         }
 473                 }
 474         }
 475
 476         tbl_rwc_test_param.count_keys_no_ks = count_keys_no_ks;
 477         tbl_rwc_test_param.count_keys_ks = count_keys_ks;
 478         tbl_rwc_test_param.count_keys_absent = count_keys_absent;
 479         tbl_rwc_test_param.count_keys_non_shift_path = count;
 480
 481         memset(scanned_bkts, 0, num_buckets);
 482         count = 0;
 483         /* Find keys that will be in extended buckets */
 484         for (i = 0; i < count_keys_ks; i++) {
 485                 ret = rte_hash_add_key(tbl_rwc_test_param.h, keys_ks + i);
 486                 if (ret < 0) {
 487                         /* Key will be added to ext bkt */
 488                         keys_ext_bkt[count_keys_extbkt++] = keys_ks[i];
 489                         /* Sec bkt to be added to keys_ks_extbkt */
 490                         sig = rte_hash_hash(tbl_rwc_test_param.h,
 491                                         tbl_rwc_test_param.keys_ks + i);
 492                         prim_bucket_idx = get_prim_bucket_index(
 493                                                 tbl_rwc_test_param.h, sig);
 494                         short_sig = get_short_sig(sig);
 495                         sec_bucket_idx = get_alt_bucket_index(
 496                                                 tbl_rwc_test_param.h,
 497                                                 prim_bucket_idx, short_sig);
 498                         if (scanned_bkts[sec_bucket_idx] == 0)
 499                                 scanned_bkts[sec_bucket_idx] = 1;
 500                 }
 501         }
 502
 503         /* Find keys that will shift keys in ext bucket*/
 504         for (i = 0; i < num_buckets; i++) {
 505                 if (scanned_bkts[i] == 1) {
 506                         iter = i * 8;
 507                         while (rte_hash_iterate(tbl_rwc_test_param.h,
 508                                 &next_key, &next_data, &iter) >= 0) {
 509                                 /* Check if key belongs to the current bucket */
 510                                 if (i >= (iter-1)/8)
 511                                         keys_ks_extbkt[count++]
 512                                                 = *(const uint32_t *)next_key;
 513                                 else
 514                                         break;
 515                         }
 516                 }
 517         }
 518
 519         tbl_rwc_test_param.count_keys_ks_extbkt = count;
 520         tbl_rwc_test_param.count_keys_extbkt = count_keys_extbkt;
 521
 522         printf("\nCount of keys NOT causing shifting of existing keys to "
 523         "alternate location: %d\n", tbl_rwc_test_param.count_keys_no_ks);
 524         printf("\nCount of keys causing shifting of existing keys to alternate "
 525                 "locations: %d\n\n", tbl_rwc_test_param.count_keys_ks);
 526         printf("Count of absent keys that will never be added to the hash "
 527                 "table: %d\n\n", tbl_rwc_test_param.count_keys_absent);
 528         printf("Count of keys likely to be on the shift path: %d\n\n",
 529                tbl_rwc_test_param.count_keys_shift_path);
 530         printf("Count of keys not likely to be on the shift path: %d\n\n",
 531                tbl_rwc_test_param.count_keys_non_shift_path);
 532         printf("Count of keys in extended buckets: %d\n\n",
 533                tbl_rwc_test_param.count_keys_extbkt);
 534         printf("Count of keys shifting keys in ext buckets: %d\n\n",
 535                tbl_rwc_test_param.count_keys_ks_extbkt);
 536
 537         rte_free(found);
 538         rte_free(scanned_bkts);
 539         rte_hash_free(tbl_rwc_test_param.h);
 540         return 0;
 541
 542 err:
 543         rte_free(keys);
 544         rte_free(keys_no_ks);
 545         rte_free(keys_ks);
 546         rte_free(keys_absent);
 547         rte_free(found);
 548         rte_free(tbl_rwc_test_param.keys_shift_path);
 549         rte_free(keys_non_shift_path);
 550         rte_free(keys_ext_bkt);
 551         rte_free(keys_ks_extbkt);
 552         rte_free(scanned_bkts);
 553         rte_hash_free(tbl_rwc_test_param.h);
 554         return -1;
 555 }
 556
 557 static int
 558 test_rwc_reader(__rte_unused void *arg)
 559 {
 560         uint32_t i, j;
 561         int ret;
 562         uint64_t begin, cycles;
 563         uint32_t loop_cnt = 0;
 564         uint8_t read_type = (uint8_t)((uintptr_t)arg);
 565         uint32_t read_cnt;
 566         uint32_t *keys;
 567         uint32_t extra_keys;
 568         int32_t pos[BULK_LOOKUP_SIZE];
 569         void *temp_a[BULK_LOOKUP_SIZE];
 570
 571         if (read_type & READ_FAIL) {
 572                 keys = tbl_rwc_test_param.keys_absent;
 573                 read_cnt = tbl_rwc_test_param.count_keys_absent;
 574         } else if (read_type & READ_PASS_NO_KEY_SHIFTS) {
 575                 keys = tbl_rwc_test_param.keys_no_ks;
 576                 read_cnt = tbl_rwc_test_param.count_keys_no_ks;
 577         } else if (read_type & READ_PASS_SHIFT_PATH) {
 578                 keys = tbl_rwc_test_param.keys_shift_path;
 579                 read_cnt = tbl_rwc_test_param.count_keys_shift_path;
 580         } else if (read_type & READ_PASS_KEY_SHIFTS_EXTBKT) {
 581                 keys = tbl_rwc_test_param.keys_ext_bkt;
 582                 read_cnt = tbl_rwc_test_param.count_keys_extbkt;
 583         } else {
 584                 keys = tbl_rwc_test_param.keys_non_shift_path;
 585                 read_cnt = tbl_rwc_test_param.count_keys_non_shift_path;
 586         }
 587
 588         extra_keys = read_cnt & (BULK_LOOKUP_SIZE - 1);
 589
 590         begin = rte_rdtsc_precise();
 591         do {
 592                 if (read_type & BULK_LOOKUP) {
 593                         for (i = 0; i < (read_cnt - extra_keys);
 594                              i += BULK_LOOKUP_SIZE) {
 595                                 /* Array of  pointer to the list of keys */
 596                                 for (j = 0; j < BULK_LOOKUP_SIZE; j++)
 597                                         temp_a[j] = keys + i + j;
 598                                 rte_hash_lookup_bulk(tbl_rwc_test_param.h,
 599                                                    (const void **)
 600                                                    ((uintptr_t)temp_a),
 601                                                    BULK_LOOKUP_SIZE, pos);
 602                                 /* Validate lookup result */
 603                                 for (j = 0; j < BULK_LOOKUP_SIZE; j++)
 604                                         if ((read_type & READ_FAIL &&
 605                                              pos[j] != -ENOENT) ||
 606                                             (!(read_type & READ_FAIL) &&
 607                                              pos[j] == -ENOENT)) {
 608                                                 printf("lookup failed!"
 609                                                        "%"PRIu32"\n",
 610                                                        keys[i + j]);
 611                                                 return -1;
 612                                         }
 613                         }
 614                         for (j = 0; j < extra_keys; j++)
 615                                 temp_a[j] = keys + i + j;
 616
 617                         rte_hash_lookup_bulk(tbl_rwc_test_param.h,
 618                                            (const void **)
 619                                            ((uintptr_t)temp_a),
 620                                            extra_keys, pos);
 621                         for (j = 0; j < extra_keys; j++)
 622                                 if ((read_type & READ_FAIL &&
 623                                      pos[j] != -ENOENT) ||
 624                                     (!(read_type & READ_FAIL) &&
 625                                      pos[j] == -ENOENT)) {
 626                                         printf("lookup failed! %"PRIu32"\n",
 627                                                keys[i + j]);
 628                                         return -1;
 629                                 }
 630                 } else {
 631                         for (i = 0; i < read_cnt; i++) {
 632                                 ret = rte_hash_lookup
 633                                         (tbl_rwc_test_param.h, keys + i);
 634                                 if (((read_type & READ_FAIL) &&
 635                                      (ret != -ENOENT)) ||
 636                                     (!(read_type & READ_FAIL) &&
 637                                         ret == -ENOENT)) {
 638                                         printf("lookup failed! %"PRIu32"\n",
 639                                                keys[i]);
 640                                         return -1;
 641                                 }
 642                         }
 643                 }
 644                 loop_cnt++;
 645         } while (!writer_done);
 646
 647         cycles = rte_rdtsc_precise() - begin;
 648         __atomic_fetch_add(&gread_cycles, cycles, __ATOMIC_RELAXED);
 649         __atomic_fetch_add(&greads, read_cnt*loop_cnt, __ATOMIC_RELAXED);
 650         return 0;
 651 }
 652
 653 static int
 654 write_keys(uint8_t write_type)
 655 {
 656         uint32_t i;
 657         int ret;
 658         uint32_t key_cnt = 0;
 659         uint32_t *keys;
 660         if (write_type == WRITE_KEY_SHIFT) {
 661                 key_cnt = tbl_rwc_test_param.count_keys_ks;
 662                 keys = tbl_rwc_test_param.keys_ks;
 663         } else if (write_type == WRITE_NO_KEY_SHIFT) {
 664                 key_cnt = tbl_rwc_test_param.count_keys_no_ks;
 665                 keys = tbl_rwc_test_param.keys_no_ks;
 666         } else if (write_type == WRITE_EXT_BKT) {
 667                 key_cnt = tbl_rwc_test_param.count_keys_extbkt;
 668                 keys = tbl_rwc_test_param.keys_ext_bkt;
 669         }
 670         for (i = 0; i < key_cnt; i++) {
 671                 ret = rte_hash_add_key(tbl_rwc_test_param.h, keys + i);
 672                 if ((write_type == WRITE_NO_KEY_SHIFT) && ret < 0) {
 673                         printf("writer failed %"PRIu32"\n", i);
 674                         return -1;
 675                 }
 676         }
 677         return 0;
 678 }
 679
 680 static int
 681 test_rwc_multi_writer(__rte_unused void *arg)
 682 {
 683         uint32_t i, offset;
 684         uint32_t pos_core = (uint32_t)((uintptr_t)arg);
 685         offset = pos_core * tbl_rwc_test_param.single_insert;
 686         for (i = offset; i < offset + tbl_rwc_test_param.single_insert; i++)
 687                 rte_hash_add_key(tbl_rwc_test_param.h,
 688                                  tbl_rwc_test_param.keys_ks + i);
 689         return 0;
 690 }
 691
 692 /*
 693  * Test lookup perf:
 694  * Reader(s) lookup keys present in the table.
 695  */
 696 static int
 697 test_hash_add_no_ks_lookup_hit(struct rwc_perf *rwc_perf_results, int rwc_lf,
 698                                 int htm, int ext_bkt)
 699 {
 700         unsigned int n, m;
 701         uint64_t i;
 702         int use_jhash = 0;
 703         uint8_t write_type = WRITE_NO_KEY_SHIFT;
 704         uint8_t read_type = READ_PASS_NO_KEY_SHIFTS;
 705
 706         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
 707                 goto err;
 708         printf("\nTest: Hash add - no key-shifts, read - hit\n");
 709         for (m = 0; m < 2; m++) {
 710                 if (m == 1) {
 711                         printf("\n** With bulk-lookup **\n");
 712                         read_type |= BULK_LOOKUP;
 713                 }
 714                 for (n = 0; n < NUM_TEST; n++) {
 715                         unsigned int tot_lcore = rte_lcore_count();
 716                         if (tot_lcore < rwc_core_cnt[n] + 1)
 717                                 goto finish;
 718
 719                         printf("\nNumber of readers: %u\n", rwc_core_cnt[n]);
 720
 721                         __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
 722                         __atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
 723
 724                         rte_hash_reset(tbl_rwc_test_param.h);
 725                         writer_done = 0;
 726                         if (write_keys(write_type) < 0)
 727                                 goto err;
 728                         writer_done = 1;
 729                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 730                                 rte_eal_remote_launch(test_rwc_reader,
 731                                                 (void *)(uintptr_t)read_type,
 732                                                         enabled_core_ids[i]);
 733
 734                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 735                                 if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
 736                                         goto err;
 737
 738                         unsigned long long cycles_per_lookup =
 739                                 __atomic_load_n(&gread_cycles, __ATOMIC_RELAXED)
 740                                 / __atomic_load_n(&greads, __ATOMIC_RELAXED);
 741                         rwc_perf_results->w_no_ks_r_hit[m][n]
 742                                                 = cycles_per_lookup;
 743                         printf("Cycles per lookup: %llu\n", cycles_per_lookup);
 744                 }
 745         }
 746
 747 finish:
 748         rte_hash_free(tbl_rwc_test_param.h);
 749         return 0;
 750
 751 err:
 752         rte_eal_mp_wait_lcore();
 753         rte_hash_free(tbl_rwc_test_param.h);
 754         return -1;
 755 }
 756
 757 /*
 758  * Test lookup perf:
 759  * Reader(s) lookup keys absent in the table while
 760  * 'Main' thread adds with no key-shifts.
 761  */
 762 static int
 763 test_hash_add_no_ks_lookup_miss(struct rwc_perf *rwc_perf_results, int rwc_lf,
 764                                 int htm, int ext_bkt)
 765 {
 766         unsigned int n, m;
 767         uint64_t i;
 768         int use_jhash = 0;
 769         uint8_t write_type = WRITE_NO_KEY_SHIFT;
 770         uint8_t read_type = READ_FAIL;
 771         int ret;
 772
 773         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
 774                 goto err;
 775         printf("\nTest: Hash add - no key-shifts, Hash lookup - miss\n");
 776         for (m = 0; m < 2; m++) {
 777                 if (m == 1) {
 778                         printf("\n** With bulk-lookup **\n");
 779                         read_type |= BULK_LOOKUP;
 780                 }
 781                 for (n = 0; n < NUM_TEST; n++) {
 782                         unsigned int tot_lcore = rte_lcore_count();
 783                         if (tot_lcore < rwc_core_cnt[n] + 1)
 784                                 goto finish;
 785
 786                         printf("\nNumber of readers: %u\n", rwc_core_cnt[n]);
 787
 788                         __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
 789                         __atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
 790
 791                         rte_hash_reset(tbl_rwc_test_param.h);
 792                         writer_done = 0;
 793
 794                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 795                                 rte_eal_remote_launch(test_rwc_reader,
 796                                                 (void *)(uintptr_t)read_type,
 797                                                         enabled_core_ids[i]);
 798                         ret = write_keys(write_type);
 799                         writer_done = 1;
 800
 801                         if (ret < 0)
 802                                 goto err;
 803                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 804                                 if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
 805                                         goto err;
 806
 807                         unsigned long long cycles_per_lookup =
 808                                 __atomic_load_n(&gread_cycles, __ATOMIC_RELAXED)
 809                                 / __atomic_load_n(&greads, __ATOMIC_RELAXED);
 810                         rwc_perf_results->w_no_ks_r_miss[m][n]
 811                                                 = cycles_per_lookup;
 812                         printf("Cycles per lookup: %llu\n", cycles_per_lookup);
 813                 }
 814         }
 815
 816 finish:
 817         rte_hash_free(tbl_rwc_test_param.h);
 818         return 0;
 819
 820 err:
 821         rte_eal_mp_wait_lcore();
 822         rte_hash_free(tbl_rwc_test_param.h);
 823         return -1;
 824 }
 825
 826 /*
 827  * Test lookup perf:
 828  * Reader(s) lookup keys present in the table and not likely to be on the
 829  * shift path  while 'Main' thread adds keys causing key-shifts.
 830  */
 831 static int
 832 test_hash_add_ks_lookup_hit_non_sp(struct rwc_perf *rwc_perf_results,
 833                                     int rwc_lf, int htm, int ext_bkt)
 834 {
 835         unsigned int n, m;
 836         uint64_t i;
 837         int use_jhash = 0;
 838         int ret;
 839         uint8_t write_type;
 840         uint8_t read_type = READ_PASS_NON_SHIFT_PATH;
 841
 842         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
 843                 goto err;
 844         printf("\nTest: Hash add - key shift, Hash lookup - hit"
 845                " (non-shift-path)\n");
 846         for (m = 0; m < 2; m++) {
 847                 if (m == 1) {
 848                         printf("\n** With bulk-lookup **\n");
 849                         read_type |= BULK_LOOKUP;
 850                 }
 851                 for (n = 0; n < NUM_TEST; n++) {
 852                         unsigned int tot_lcore = rte_lcore_count();
 853                         if (tot_lcore < rwc_core_cnt[n] + 1)
 854                                 goto finish;
 855
 856                         printf("\nNumber of readers: %u\n", rwc_core_cnt[n]);
 857
 858                         __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
 859                         __atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
 860
 861                         rte_hash_reset(tbl_rwc_test_param.h);
 862                         writer_done = 0;
 863                         write_type = WRITE_NO_KEY_SHIFT;
 864                         if (write_keys(write_type) < 0)
 865                                 goto err;
 866                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 867                                 rte_eal_remote_launch(test_rwc_reader,
 868                                                 (void *)(uintptr_t)read_type,
 869                                                         enabled_core_ids[i]);
 870                         write_type = WRITE_KEY_SHIFT;
 871                         ret = write_keys(write_type);
 872                         writer_done = 1;
 873
 874                         if (ret < 0)
 875                                 goto err;
 876                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 877                                 if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
 878                                         goto err;
 879
 880                         unsigned long long cycles_per_lookup =
 881                                 __atomic_load_n(&gread_cycles, __ATOMIC_RELAXED)
 882                                 / __atomic_load_n(&greads, __ATOMIC_RELAXED);
 883                         rwc_perf_results->w_ks_r_hit_nsp[m][n]
 884                                                 = cycles_per_lookup;
 885                         printf("Cycles per lookup: %llu\n", cycles_per_lookup);
 886                 }
 887         }
 888
 889 finish:
 890         rte_hash_free(tbl_rwc_test_param.h);
 891         return 0;
 892
 893 err:
 894         rte_eal_mp_wait_lcore();
 895         rte_hash_free(tbl_rwc_test_param.h);
 896         return -1;
 897 }
 898
 899 /*
 900  * Test lookup perf:
 901  * Reader(s) lookup keys present in the table and likely on the shift-path while
 902  * 'Main' thread adds keys causing key-shifts.
 903  */
 904 static int
 905 test_hash_add_ks_lookup_hit_sp(struct rwc_perf *rwc_perf_results, int rwc_lf,
 906                                 int htm, int ext_bkt)
 907 {
 908         unsigned int n, m;
 909         uint64_t i;
 910         int use_jhash = 0;
 911         int ret;
 912         uint8_t write_type;
 913         uint8_t read_type = READ_PASS_SHIFT_PATH;
 914
 915         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
 916                 goto err;
 917         printf("\nTest: Hash add - key shift, Hash lookup - hit (shift-path)"
 918                "\n");
 919
 920         for (m = 0; m < 2; m++) {
 921                 if (m == 1) {
 922                         printf("\n** With bulk-lookup **\n");
 923                         read_type |= BULK_LOOKUP;
 924                 }
 925                 for (n = 0; n < NUM_TEST; n++) {
 926                         unsigned int tot_lcore = rte_lcore_count();
 927                         if (tot_lcore < rwc_core_cnt[n] + 1)
 928                                 goto finish;
 929
 930                         printf("\nNumber of readers: %u\n", rwc_core_cnt[n]);
 931
 932                         __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
 933                         __atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
 934
 935                         rte_hash_reset(tbl_rwc_test_param.h);
 936                         writer_done = 0;
 937                         write_type = WRITE_NO_KEY_SHIFT;
 938                         if (write_keys(write_type) < 0)
 939                                 goto err;
 940                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 941                                 rte_eal_remote_launch(test_rwc_reader,
 942                                                 (void *)(uintptr_t)read_type,
 943                                                 enabled_core_ids[i]);
 944                         write_type = WRITE_KEY_SHIFT;
 945                         ret = write_keys(write_type);
 946                         writer_done = 1;
 947
 948                         if (ret < 0)
 949                                 goto err;
 950                         for (i = 1; i <= rwc_core_cnt[n]; i++)
 951                                 if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
 952                                         goto err;
 953
 954                         unsigned long long cycles_per_lookup =
 955                                 __atomic_load_n(&gread_cycles, __ATOMIC_RELAXED)
 956                                 / __atomic_load_n(&greads, __ATOMIC_RELAXED);
 957                         rwc_perf_results->w_ks_r_hit_sp[m][n]
 958                                                 = cycles_per_lookup;
 959                         printf("Cycles per lookup: %llu\n", cycles_per_lookup);
 960                 }
 961         }
 962
 963 finish:
 964         rte_hash_free(tbl_rwc_test_param.h);
 965         return 0;
 966
 967 err:
 968         rte_eal_mp_wait_lcore();
 969         rte_hash_free(tbl_rwc_test_param.h);
 970         return -1;
 971 }
 972
 973 /*
 974  * Test lookup perf:
 975  * Reader(s) lookup keys absent in the table while
 976  * 'Main' thread adds keys causing key-shifts.
 977  */
 978 static int
 979 test_hash_add_ks_lookup_miss(struct rwc_perf *rwc_perf_results, int rwc_lf, int
 980                              htm, int ext_bkt)
 981 {
 982         unsigned int n, m;
 983         uint64_t i;
 984         int use_jhash = 0;
 985         int ret;
 986         uint8_t write_type;
 987         uint8_t read_type = READ_FAIL;
 988
 989         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
 990                 goto err;
 991         printf("\nTest: Hash add - key shift, Hash lookup - miss\n");
 992         for (m = 0; m < 2; m++) {
 993                 if (m == 1) {
 994                         printf("\n** With bulk-lookup **\n");
 995                         read_type |= BULK_LOOKUP;
 996                 }
 997                 for (n = 0; n < NUM_TEST; n++) {
 998                         unsigned int tot_lcore = rte_lcore_count();
 999                         if (tot_lcore < rwc_core_cnt[n] + 1)
1000                                 goto finish;
1001
1002                         printf("\nNumber of readers: %u\n", rwc_core_cnt[n]);
1003
1004                         __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
1005                         __atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
1006
1007                         rte_hash_reset(tbl_rwc_test_param.h);
1008                         writer_done = 0;
1009                         write_type = WRITE_NO_KEY_SHIFT;
1010                         if (write_keys(write_type) < 0)
1011                                 goto err;
1012                         for (i = 1; i <= rwc_core_cnt[n]; i++)
1013                                 rte_eal_remote_launch(test_rwc_reader,
1014                                                 (void *)(uintptr_t)read_type,
1015                                                         enabled_core_ids[i]);
1016                         write_type = WRITE_KEY_SHIFT;
1017                         ret = write_keys(write_type);
1018                         writer_done = 1;
1019
1020                         if (ret < 0)
1021                                 goto err;
1022                         for (i = 1; i <= rwc_core_cnt[n]; i++)
1023                                 if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
1024                                         goto err;
1025
1026                         unsigned long long cycles_per_lookup =
1027                                 __atomic_load_n(&gread_cycles, __ATOMIC_RELAXED)
1028                                 / __atomic_load_n(&greads, __ATOMIC_RELAXED);
1029                         rwc_perf_results->w_ks_r_miss[m][n] = cycles_per_lookup;
1030                         printf("Cycles per lookup: %llu\n", cycles_per_lookup);
1031                 }
1032         }
1033
1034 finish:
1035         rte_hash_free(tbl_rwc_test_param.h);
1036         return 0;
1037
1038 err:
1039         rte_eal_mp_wait_lcore();
1040         rte_hash_free(tbl_rwc_test_param.h);
1041         return -1;
1042 }
1043
1044 /*
1045  * Test lookup perf for multi-writer:
1046  * Reader(s) lookup keys present in the table and likely on the shift-path while
1047  * Writers add keys causing key-shiftsi.
1048  * Writers are running in parallel, on different data plane cores.
1049  */
1050 static int
1051 test_hash_multi_add_lookup(struct rwc_perf *rwc_perf_results, int rwc_lf,
1052                            int htm, int ext_bkt)
1053 {
1054         unsigned int n, m, k;
1055         uint64_t i;
1056         int use_jhash = 0;
1057         uint8_t write_type;
1058         uint8_t read_type = READ_PASS_SHIFT_PATH;
1059
1060         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
1061                 goto err;
1062         printf("\nTest: Multi-add-lookup\n");
1063         uint8_t pos_core;
1064         for (m = 1; m < NUM_TEST; m++) {
1065                 /* Calculate keys added by each writer */
1066                 tbl_rwc_test_param.single_insert =
1067                         tbl_rwc_test_param.count_keys_ks / rwc_core_cnt[m];
1068                 for (k = 0; k < 2; k++) {
1069                         if (k == 1) {
1070                                 printf("\n** With bulk-lookup **\n");
1071                                 read_type |= BULK_LOOKUP;
1072                         }
1073                         for (n = 0; n < NUM_TEST; n++) {
1074                                 unsigned int tot_lcore  = rte_lcore_count();
1075                                 if (tot_lcore < (rwc_core_cnt[n] +
1076                                      rwc_core_cnt[m] + 1))
1077                                         goto finish;
1078
1079                                 printf("\nNumber of writers: %u",
1080                                        rwc_core_cnt[m]);
1081                                 printf("\nNumber of readers: %u\n",
1082                                        rwc_core_cnt[n]);
1083
1084                                 __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
1085                                 __atomic_store_n(&gread_cycles, 0,
1086                                                  __ATOMIC_RELAXED);
1087
1088                                 rte_hash_reset(tbl_rwc_test_param.h);
1089                                 writer_done = 0;
1090                                 write_type = WRITE_NO_KEY_SHIFT;
1091                                 if (write_keys(write_type) < 0)
1092                                         goto err;
1093
1094                                 /* Launch reader(s) */
1095                                 for (i = 1; i <= rwc_core_cnt[n]; i++)
1096                                         rte_eal_remote_launch(test_rwc_reader,
1097                                                 (void *)(uintptr_t)read_type,
1098                                                 enabled_core_ids[i]);
1099                                 write_type = WRITE_KEY_SHIFT;
1100                                 pos_core = 0;
1101
1102                                 /* Launch writers */
1103                                 for (; i <= rwc_core_cnt[m]
1104                                      + rwc_core_cnt[n]; i++) {
1105                                         rte_eal_remote_launch
1106                                                 (test_rwc_multi_writer,
1107                                                 (void *)(uintptr_t)pos_core,
1108                                                 enabled_core_ids[i]);
1109                                         pos_core++;
1110                                 }
1111
1112                                 /* Wait for writers to complete */
1113                                 for (i = rwc_core_cnt[n] + 1;
1114                                      i <= rwc_core_cnt[m] + rwc_core_cnt[n];
1115                                      i++)
1116                                         rte_eal_wait_lcore(enabled_core_ids[i]);
1117
1118                                 writer_done = 1;
1119
1120                                 for (i = 1; i <= rwc_core_cnt[n]; i++)
1121                                         if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
1122                                                 goto err;
1123
1124                                 unsigned long long cycles_per_lookup =
1125                                         __atomic_load_n(&gread_cycles,
1126                                                         __ATOMIC_RELAXED) /
1127                                         __atomic_load_n(&greads,
1128                                                           __ATOMIC_RELAXED);
1129                                 rwc_perf_results->multi_rw[m][k][n]
1130                                         = cycles_per_lookup;
1131                                 printf("Cycles per lookup: %llu\n",
1132                                        cycles_per_lookup);
1133                         }
1134                 }
1135         }
1136
1137 finish:
1138         rte_hash_free(tbl_rwc_test_param.h);
1139         return 0;
1140
1141 err:
1142         rte_eal_mp_wait_lcore();
1143         rte_hash_free(tbl_rwc_test_param.h);
1144         return -1;
1145 }
1146
1147 /*
1148  * Test lookup perf:
1149  * Reader(s) lookup keys present in the extendable bkt.
1150  */
1151 static int
1152 test_hash_add_ks_lookup_hit_extbkt(struct rwc_perf *rwc_perf_results,
1153                                 int rwc_lf, int htm, int ext_bkt)
1154 {
1155         unsigned int n, m;
1156         uint64_t i;
1157         int use_jhash = 0;
1158         uint8_t write_type;
1159         uint8_t read_type = READ_PASS_KEY_SHIFTS_EXTBKT;
1160
1161         if (init_params(rwc_lf, use_jhash, htm, ext_bkt) != 0)
1162                 goto err;
1163         printf("\nTest: Hash add - key-shifts, read - hit (ext_bkt)\n");
1164         for (m = 0; m < 2; m++) {
1165                 if (m == 1) {
1166                         printf("\n** With bulk-lookup **\n");
1167                         read_type |= BULK_LOOKUP;
1168                 }
1169                 for (n = 0; n < NUM_TEST; n++) {
1170                         unsigned int tot_lcore = rte_lcore_count();
1171                         if (tot_lcore < rwc_core_cnt[n] + 1)
1172                                 goto finish;
1173
1174                         printf("\nNumber of readers: %u\n", rwc_core_cnt[n]);
1175
1176                         __atomic_store_n(&greads, 0, __ATOMIC_RELAXED);
1177                         __atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
1178
1179                         rte_hash_reset(tbl_rwc_test_param.h);
1180                         write_type = WRITE_NO_KEY_SHIFT;
1181                         if (write_keys(write_type) < 0)
1182                                 goto err;
1183                         write_type = WRITE_KEY_SHIFT;
1184                         if (write_keys(write_type) < 0)
1185                                 goto err;
1186                         writer_done = 0;
1187                         for (i = 1; i <= rwc_core_cnt[n]; i++)
1188                                 rte_eal_remote_launch(test_rwc_reader,
1189                                                 (void *)(uintptr_t)read_type,
1190                                                         enabled_core_ids[i]);
1191                         for (i = 0; i < tbl_rwc_test_param.count_keys_ks_extbkt;
1192                              i++) {
1193                                 if (rte_hash_del_key(tbl_rwc_test_param.h,
1194                                         tbl_rwc_test_param.keys_ks_extbkt + i)
1195                                                         < 0) {
1196                                         printf("Delete Failed: %u\n",
1197                                         tbl_rwc_test_param.keys_ks_extbkt[i]);
1198                                         goto err;
1199                                 }
1200                         }
1201                         writer_done = 1;
1202
1203                         for (i = 1; i <= rwc_core_cnt[n]; i++)
1204                                 if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
1205                                         goto err;
1206
1207                         unsigned long long cycles_per_lookup =
1208                                 __atomic_load_n(&gread_cycles, __ATOMIC_RELAXED)
1209                                 / __atomic_load_n(&greads, __ATOMIC_RELAXED);
1210                         rwc_perf_results->w_ks_r_hit_extbkt[m][n]
1211                                                 = cycles_per_lookup;
1212                         printf("Cycles per lookup: %llu\n", cycles_per_lookup);
1213                 }
1214         }
1215
1216 finish:
1217         rte_hash_free(tbl_rwc_test_param.h);
1218         return 0;
1219
1220 err:
1221         rte_eal_mp_wait_lcore();
1222         rte_hash_free(tbl_rwc_test_param.h);
1223         return -1;
1224 }
1225
1226 static int
1227 test_hash_readwrite_lf_perf_main(void)
1228 {
1229         /*
1230          * Variables used to choose different tests.
1231          * rwc_lf indicates if read-write concurrency lock-free support is
1232          * enabled.
1233          * htm indicates if Hardware transactional memory support is enabled.
1234          */
1235         int rwc_lf = 0;
1236         int htm;
1237         int ext_bkt = 0;
1238
1239         if (rte_lcore_count() < 2) {
1240                 printf("Not enough cores for hash_readwrite_lf_perf_autotest, expecting at least 2\n");
1241                 return TEST_SKIPPED;
1242         }
1243
1244         setlocale(LC_NUMERIC, "");
1245
1246         /* Reset tbl_rwc_test_param to discard values from previous run */
1247         memset(&tbl_rwc_test_param, 0, sizeof(tbl_rwc_test_param));
1248
1249         if (rte_tm_supported())
1250                 htm = 1;
1251         else
1252                 htm = 0;
1253
1254         if (generate_keys() != 0)
1255                 return -1;
1256         if (get_enabled_cores_list() != 0)
1257                 return -1;
1258
1259         if (RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF) {
1260                 rwc_lf = 1;
1261                 ext_bkt = 1;
1262                 printf("Test lookup with read-write concurrency lock free support"
1263                        " enabled\n");
1264                 if (test_hash_add_no_ks_lookup_hit(&rwc_lf_results, rwc_lf,
1265                                                         htm, ext_bkt) < 0)
1266                         return -1;
1267                 if (test_hash_add_no_ks_lookup_miss(&rwc_lf_results, rwc_lf,
1268                                                         htm, ext_bkt) < 0)
1269                         return -1;
1270                 if (test_hash_add_ks_lookup_hit_non_sp(&rwc_lf_results, rwc_lf,
1271                                                         htm, ext_bkt) < 0)
1272                         return -1;
1273                 if (test_hash_add_ks_lookup_hit_sp(&rwc_lf_results, rwc_lf,
1274                                                         htm, ext_bkt) < 0)
1275                         return -1;
1276                 if (test_hash_add_ks_lookup_miss(&rwc_lf_results, rwc_lf, htm,
1277                                                  ext_bkt) < 0)
1278                         return -1;
1279                 if (test_hash_multi_add_lookup(&rwc_lf_results, rwc_lf, htm,
1280                                                ext_bkt) < 0)
1281                         return -1;
1282                 if (test_hash_add_ks_lookup_hit_extbkt(&rwc_lf_results, rwc_lf,
1283                                                         htm, ext_bkt) < 0)
1284                         return -1;
1285         }
1286         printf("\nTest lookup with read-write concurrency lock free support"
1287                " disabled\n");
1288         rwc_lf = 0;
1289         if (!htm) {
1290                 printf("With HTM Disabled\n");
1291                 if (!RUN_WITH_HTM_DISABLED) {
1292                         printf("Enable RUN_WITH_HTM_DISABLED to test with"
1293                                " lock-free disabled");
1294                         goto results;
1295                 }
1296         } else
1297                 printf("With HTM Enabled\n");
1298         if (test_hash_add_no_ks_lookup_hit(&rwc_non_lf_results, rwc_lf, htm,
1299                                            ext_bkt) < 0)
1300                 return -1;
1301         if (test_hash_add_no_ks_lookup_miss(&rwc_non_lf_results, rwc_lf, htm,
1302                                                 ext_bkt) < 0)
1303                 return -1;
1304         if (test_hash_add_ks_lookup_hit_non_sp(&rwc_non_lf_results, rwc_lf,
1305                                                 htm, ext_bkt) < 0)
1306                 return -1;
1307         if (test_hash_add_ks_lookup_hit_sp(&rwc_non_lf_results, rwc_lf, htm,
1308                                                 ext_bkt) < 0)
1309                 return -1;
1310         if (test_hash_add_ks_lookup_miss(&rwc_non_lf_results, rwc_lf, htm,
1311                                          ext_bkt) < 0)
1312                 return -1;
1313         if (test_hash_multi_add_lookup(&rwc_non_lf_results, rwc_lf, htm,
1314                                                         ext_bkt) < 0)
1315                 return -1;
1316         if (test_hash_add_ks_lookup_hit_extbkt(&rwc_non_lf_results, rwc_lf,
1317                                                 htm, ext_bkt) < 0)
1318                 return -1;
1319 results:
1320         printf("\n\t\t\t\t\t\t********** Results summary **********\n\n");
1321         int i, j, k;
1322         for (j = 0; j < 2; j++) {
1323                 if (j == 1)
1324                         printf("\n\t\t\t\t\t#######********** Bulk Lookup "
1325                                "**********#######\n\n");
1326                 printf("_______\t\t_______\t\t_________\t___\t\t_________\t\t"
1327                         "\t\t\t\t_________________\n");
1328                 printf("Writers\t\tReaders\t\tLock-free\tHTM\t\tTest-case\t\t\t"
1329                        "\t\t\tCycles per lookup\n");
1330                 printf("_______\t\t_______\t\t_________\t___\t\t_________\t\t\t"
1331                        "\t\t\t_________________\n");
1332                 for (i = 0; i < NUM_TEST; i++) {
1333                         printf("%u\t\t%u\t\t", 1, rwc_core_cnt[i]);
1334                         printf("Enabled\t\t");
1335                         printf("N/A\t\t");
1336                         printf("Hash add - no key-shifts, lookup - hit\t\t\t\t"
1337                                 "%u\n\t\t\t\t\t\t\t\t",
1338                                 rwc_lf_results.w_no_ks_r_hit[j][i]);
1339                         printf("Hash add - no key-shifts, lookup - miss\t\t\t\t"
1340                                 "%u\n\t\t\t\t\t\t\t\t",
1341                                 rwc_lf_results.w_no_ks_r_miss[j][i]);
1342                         printf("Hash add - key-shifts, lookup - hit"
1343                                "(non-shift-path)\t\t%u\n\t\t\t\t\t\t\t\t",
1344                                rwc_lf_results.w_ks_r_hit_nsp[j][i]);
1345                         printf("Hash add - key-shifts, lookup - hit "
1346                                "(shift-path)\t\t%u\n\t\t\t\t\t\t\t\t",
1347                                rwc_lf_results.w_ks_r_hit_sp[j][i]);
1348                         printf("Hash add - key-shifts, Hash lookup miss\t\t\t\t"
1349                                 "%u\n\t\t\t\t\t\t\t\t",
1350                                 rwc_lf_results.w_ks_r_miss[j][i]);
1351                         printf("Hash add - key-shifts, Hash lookup hit (ext_bkt)\t\t"
1352                                 "%u\n\n\t\t\t\t",
1353                                 rwc_lf_results.w_ks_r_hit_extbkt[j][i]);
1354
1355                         printf("Disabled\t");
1356                         if (htm)
1357                                 printf("Enabled\t\t");
1358                         else
1359                                 printf("Disabled\t");
1360                         printf("Hash add - no key-shifts, lookup - hit\t\t\t\t"
1361                                 "%u\n\t\t\t\t\t\t\t\t",
1362                                 rwc_non_lf_results.w_no_ks_r_hit[j][i]);
1363                         printf("Hash add - no key-shifts, lookup - miss\t\t\t\t"
1364                                 "%u\n\t\t\t\t\t\t\t\t",
1365                                 rwc_non_lf_results.w_no_ks_r_miss[j][i]);
1366                         printf("Hash add - key-shifts, lookup - hit "
1367                                "(non-shift-path)\t\t%u\n\t\t\t\t\t\t\t\t",
1368                                rwc_non_lf_results.w_ks_r_hit_nsp[j][i]);
1369                         printf("Hash add - key-shifts, lookup - hit "
1370                                "(shift-path)\t\t%u\n\t\t\t\t\t\t\t\t",
1371                                rwc_non_lf_results.w_ks_r_hit_sp[j][i]);
1372                         printf("Hash add - key-shifts, Hash lookup miss\t\t\t\t"
1373                                "%u\n\t\t\t\t\t\t\t\t",
1374                                rwc_non_lf_results.w_ks_r_miss[j][i]);
1375                         printf("Hash add - key-shifts, Hash lookup hit (ext_bkt)\t\t"
1376                                 "%u\n",
1377                                 rwc_non_lf_results.w_ks_r_hit_extbkt[j][i]);
1378
1379                         printf("_______\t\t_______\t\t_________\t___\t\t"
1380                                "_________\t\t\t\t\t\t_________________\n");
1381                 }
1382
1383                 for (i = 1; i < NUM_TEST; i++) {
1384                         for (k = 0; k < NUM_TEST; k++) {
1385                                 printf("%u", rwc_core_cnt[i]);
1386                                 printf("\t\t%u\t\t", rwc_core_cnt[k]);
1387                                 printf("Enabled\t\t");
1388                                 printf("N/A\t\t");
1389                                 printf("Multi-add-lookup\t\t\t\t\t\t%u\n\n\t\t"
1390                                        "\t\t",
1391                                        rwc_lf_results.multi_rw[i][j][k]);
1392                                 printf("Disabled\t");
1393                                 if (htm)
1394                                         printf("Enabled\t\t");
1395                                 else
1396                                         printf("Disabled\t");
1397                                 printf("Multi-add-lookup\t\t\t\t\t\t%u\n",
1398                                        rwc_non_lf_results.multi_rw[i][j][k]);
1399
1400                                 printf("_______\t\t_______\t\t_________\t___"
1401                                        "\t\t_________\t\t\t\t\t\t"
1402                                        "_________________\n");
1403                         }
1404                 }
1405         }
1406         rte_free(tbl_rwc_test_param.keys);
1407         rte_free(tbl_rwc_test_param.keys_no_ks);
1408         rte_free(tbl_rwc_test_param.keys_ks);
1409         rte_free(tbl_rwc_test_param.keys_absent);
1410         rte_free(tbl_rwc_test_param.keys_shift_path);
1411         rte_free(tbl_rwc_test_param.keys_non_shift_path);
1412         rte_free(tbl_rwc_test_param.keys_ext_bkt);
1413         rte_free(tbl_rwc_test_param.keys_ks_extbkt);
1414         return 0;
1415 }
1416
1417 REGISTER_TEST_COMMAND(hash_readwrite_lf_perf_autotest,
1418         test_hash_readwrite_lf_perf_main);