app/test-crypto-perf/cperf_test_throughput.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <rte_malloc.h>
  34 #include <rte_cycles.h>
  35 #include <rte_crypto.h>
  36 #include <rte_cryptodev.h>
  37
  38 #include "cperf_test_throughput.h"
  39 #include "cperf_ops.h"
  40
  41 struct cperf_throughput_results {
  42         uint64_t ops_enqueued;
  43         uint64_t ops_dequeued;
  44
  45         uint64_t ops_enqueued_failed;
  46         uint64_t ops_dequeued_failed;
  47
  48         uint64_t ops_failed;
  49
  50         double ops_per_second;
  51         double throughput_gbps;
  52         double cycles_per_byte;
  53 };
  54
  55 struct cperf_throughput_ctx {
  56         uint8_t dev_id;
  57         uint16_t qp_id;
  58         uint8_t lcore_id;
  59
  60         struct rte_mempool *pkt_mbuf_pool_in;
  61         struct rte_mempool *pkt_mbuf_pool_out;
  62         struct rte_mbuf **mbufs_in;
  63         struct rte_mbuf **mbufs_out;
  64
  65         struct rte_mempool *crypto_op_pool;
  66
  67         struct rte_cryptodev_sym_session *sess;
  68
  69         cperf_populate_ops_t populate_ops;
  70         cperf_verify_crypto_op_t verify_op_output;
  71
  72         const struct cperf_options *options;
  73         const struct cperf_test_vector *test_vector;
  74         struct cperf_throughput_results results;
  75
  76 };
  77
  78 struct cperf_op_result {
  79         enum rte_crypto_op_status status;
  80 };
  81
  82 static void
  83 cperf_throughput_test_free(struct cperf_throughput_ctx *ctx, uint32_t mbuf_nb)
  84 {
  85         uint32_t i;
  86
  87         if (ctx) {
  88                 if (ctx->sess)
  89                         rte_cryptodev_sym_session_free(ctx->dev_id, ctx->sess);
  90
  91                 if (ctx->mbufs_in) {
  92                         for (i = 0; i < mbuf_nb; i++)
  93                                 rte_pktmbuf_free(ctx->mbufs_in[i]);
  94
  95                         rte_free(ctx->mbufs_in);
  96                 }
  97
  98                 if (ctx->mbufs_out) {
  99                         for (i = 0; i < mbuf_nb; i++) {
 100                                 if (ctx->mbufs_out[i] != NULL)
 101                                         rte_pktmbuf_free(ctx->mbufs_out[i]);
 102                         }
 103
 104                         rte_free(ctx->mbufs_out);
 105                 }
 106
 107                 if (ctx->pkt_mbuf_pool_in)
 108                         rte_mempool_free(ctx->pkt_mbuf_pool_in);
 109
 110                 if (ctx->pkt_mbuf_pool_out)
 111                         rte_mempool_free(ctx->pkt_mbuf_pool_out);
 112
 113                 if (ctx->crypto_op_pool)
 114                         rte_mempool_free(ctx->crypto_op_pool);
 115
 116                 rte_free(ctx);
 117         }
 118 }
 119
 120 static struct rte_mbuf *
 121 cperf_mbuf_create(struct rte_mempool *mempool,
 122                 uint32_t segments_nb,
 123                 const struct cperf_options *options,
 124                 const struct cperf_test_vector *test_vector)
 125 {
 126         struct rte_mbuf *mbuf;
 127         uint32_t segment_sz = options->buffer_sz / segments_nb;
 128         uint32_t last_sz = options->buffer_sz % segments_nb;
 129         uint8_t *mbuf_data;
 130         uint8_t *test_data =
 131                         (options->cipher_op == RTE_CRYPTO_CIPHER_OP_ENCRYPT) ?
 132                                         test_vector->plaintext.data :
 133                                         test_vector->ciphertext.data;
 134
 135         mbuf = rte_pktmbuf_alloc(mempool);
 136         if (mbuf == NULL)
 137                 goto error;
 138
 139         mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf, segment_sz);
 140         if (mbuf_data == NULL)
 141                 goto error;
 142
 143         memcpy(mbuf_data, test_data, segment_sz);
 144         test_data += segment_sz;
 145         segments_nb--;
 146
 147         while (segments_nb) {
 148                 struct rte_mbuf *m;
 149
 150                 m = rte_pktmbuf_alloc(mempool);
 151                 if (m == NULL)
 152                         goto error;
 153
 154                 rte_pktmbuf_chain(mbuf, m);
 155
 156                 mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf, segment_sz);
 157                 if (mbuf_data == NULL)
 158                         goto error;
 159
 160                 memcpy(mbuf_data, test_data, segment_sz);
 161                 test_data += segment_sz;
 162                 segments_nb--;
 163         }
 164
 165         if (last_sz) {
 166                 mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf, last_sz);
 167                 if (mbuf_data == NULL)
 168                         goto error;
 169
 170                 memcpy(mbuf_data, test_data, last_sz);
 171         }
 172
 173         mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf,
 174                         options->auth_digest_sz);
 175         if (mbuf_data == NULL)
 176                 goto error;
 177
 178         if (options->op_type == CPERF_AEAD) {
 179                 uint8_t *aead = (uint8_t *)rte_pktmbuf_prepend(mbuf,
 180                         RTE_ALIGN_CEIL(options->auth_aad_sz, 16));
 181
 182                 if (aead == NULL)
 183                         goto error;
 184
 185                 memcpy(aead, test_vector->aad.data, test_vector->aad.length);
 186         }
 187
 188         return mbuf;
 189 error:
 190         if (mbuf != NULL)
 191                 rte_pktmbuf_free(mbuf);
 192
 193         return NULL;
 194 }
 195
 196 void *
 197 cperf_throughput_test_constructor(uint8_t dev_id, uint16_t qp_id,
 198                 const struct cperf_options *options,
 199                 const struct cperf_test_vector *test_vector,
 200                 const struct cperf_op_fns *op_fns)
 201 {
 202         struct cperf_throughput_ctx *ctx = NULL;
 203         unsigned int mbuf_idx = 0;
 204         char pool_name[32] = "";
 205
 206         ctx = rte_malloc(NULL, sizeof(struct cperf_throughput_ctx), 0);
 207         if (ctx == NULL)
 208                 goto err;
 209
 210         ctx->dev_id = dev_id;
 211         ctx->qp_id = qp_id;
 212
 213         ctx->populate_ops = op_fns->populate_ops;
 214         ctx->options = options;
 215         ctx->test_vector = test_vector;
 216
 217         ctx->sess = op_fns->sess_create(dev_id, options, test_vector);
 218         if (ctx->sess == NULL)
 219                 goto err;
 220
 221         snprintf(pool_name, sizeof(pool_name), "cperf_pool_in_cdev_%d",
 222                         dev_id);
 223
 224         ctx->pkt_mbuf_pool_in = rte_pktmbuf_pool_create(pool_name,
 225                         options->pool_sz * options->segments_nb, 0, 0,
 226                         RTE_PKTMBUF_HEADROOM +
 227                         RTE_CACHE_LINE_ROUNDUP(
 228                                 (options->buffer_sz / options->segments_nb) +
 229                                 (options->buffer_sz % options->segments_nb) +
 230                                         options->auth_digest_sz),
 231                         rte_socket_id());
 232
 233         if (ctx->pkt_mbuf_pool_in == NULL)
 234                 goto err;
 235
 236         /* Generate mbufs_in with plaintext populated for test */
 237         if (ctx->options->pool_sz % ctx->options->burst_sz)
 238                 goto err;
 239
 240         ctx->mbufs_in = rte_malloc(NULL,
 241                         (sizeof(struct rte_mbuf *) * ctx->options->pool_sz), 0);
 242
 243         for (mbuf_idx = 0; mbuf_idx < options->pool_sz; mbuf_idx++) {
 244                 ctx->mbufs_in[mbuf_idx] = cperf_mbuf_create(
 245                                 ctx->pkt_mbuf_pool_in, options->segments_nb,
 246                                 options, test_vector);
 247                 if (ctx->mbufs_in[mbuf_idx] == NULL)
 248                         goto err;
 249         }
 250
 251         if (options->out_of_place == 1) {
 252
 253                 snprintf(pool_name, sizeof(pool_name), "cperf_pool_out_cdev_%d",
 254                                 dev_id);
 255
 256                 ctx->pkt_mbuf_pool_out = rte_pktmbuf_pool_create(
 257                                 pool_name, options->pool_sz, 0, 0,
 258                                 RTE_PKTMBUF_HEADROOM +
 259                                 RTE_CACHE_LINE_ROUNDUP(
 260                                         options->buffer_sz +
 261                                         options->auth_digest_sz),
 262                                 rte_socket_id());
 263
 264                 if (ctx->pkt_mbuf_pool_out == NULL)
 265                         goto err;
 266         }
 267
 268         ctx->mbufs_out = rte_malloc(NULL,
 269                         (sizeof(struct rte_mbuf *) *
 270                         ctx->options->pool_sz), 0);
 271
 272         for (mbuf_idx = 0; mbuf_idx < options->pool_sz; mbuf_idx++) {
 273                 if (options->out_of_place == 1) {
 274                         ctx->mbufs_out[mbuf_idx] = cperf_mbuf_create(
 275                                         ctx->pkt_mbuf_pool_out, 1,
 276                                         options, test_vector);
 277                         if (ctx->mbufs_out[mbuf_idx] == NULL)
 278                                 goto err;
 279                 } else {
 280                         ctx->mbufs_out[mbuf_idx] = NULL;
 281                 }
 282         }
 283
 284         snprintf(pool_name, sizeof(pool_name), "cperf_op_pool_cdev_%d",
 285                         dev_id);
 286
 287         ctx->crypto_op_pool = rte_crypto_op_pool_create(pool_name,
 288                         RTE_CRYPTO_OP_TYPE_SYMMETRIC, options->pool_sz, 0, 0,
 289                         rte_socket_id());
 290         if (ctx->crypto_op_pool == NULL)
 291                 goto err;
 292
 293         return ctx;
 294 err:
 295         cperf_throughput_test_free(ctx, mbuf_idx);
 296
 297         return NULL;
 298 }
 299
 300 static int
 301 cperf_throughput_test_verifier(struct rte_mbuf *mbuf,
 302                 const struct cperf_options *options,
 303                 const struct cperf_test_vector *vector)
 304 {
 305         const struct rte_mbuf *m;
 306         uint32_t len;
 307         uint16_t nb_segs;
 308         uint8_t *data;
 309         uint32_t cipher_offset, auth_offset;
 310         uint8_t cipher, auth;
 311         int res = 0;
 312
 313         m = mbuf;
 314         nb_segs = m->nb_segs;
 315         len = 0;
 316         while (m && nb_segs != 0) {
 317                 len += m->data_len;
 318                 m = m->next;
 319                 nb_segs--;
 320         }
 321
 322         data = rte_malloc(NULL, len, 0);
 323         if (data == NULL)
 324                 return 1;
 325
 326         m = mbuf;
 327         nb_segs = m->nb_segs;
 328         len = 0;
 329         while (m && nb_segs != 0) {
 330                 memcpy(data + len, rte_pktmbuf_mtod(m, uint8_t *),
 331                                 m->data_len);
 332                 len += m->data_len;
 333                 m = m->next;
 334                 nb_segs--;
 335         }
 336
 337         switch (options->op_type) {
 338         case CPERF_CIPHER_ONLY:
 339                 cipher = 1;
 340                 cipher_offset = 0;
 341                 auth = 0;
 342                 auth_offset = 0;
 343                 break;
 344         case CPERF_CIPHER_THEN_AUTH:
 345                 cipher = 1;
 346                 cipher_offset = 0;
 347                 auth = 1;
 348                 auth_offset = vector->plaintext.length;
 349                 break;
 350         case CPERF_AUTH_ONLY:
 351                 cipher = 0;
 352                 cipher_offset = 0;
 353                 auth = 1;
 354                 auth_offset = vector->plaintext.length;
 355                 break;
 356         case CPERF_AUTH_THEN_CIPHER:
 357                 cipher = 1;
 358                 cipher_offset = 0;
 359                 auth = 1;
 360                 auth_offset = vector->plaintext.length;
 361                 break;
 362         case CPERF_AEAD:
 363                 cipher = 1;
 364                 cipher_offset = vector->aad.length;
 365                 auth = 1;
 366                 auth_offset = vector->aad.length + vector->plaintext.length;
 367                 break;
 368         }
 369
 370         if (cipher == 1) {
 371                 if (options->cipher_op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
 372                         res += memcmp(data + cipher_offset,
 373                                         vector->ciphertext.data,
 374                                         vector->ciphertext.length);
 375                 else
 376                         res += memcmp(data + cipher_offset,
 377                                         vector->plaintext.data,
 378                                         vector->plaintext.length);
 379         }
 380
 381         if (auth == 1) {
 382                 if (options->auth_op == RTE_CRYPTO_AUTH_OP_GENERATE)
 383                         res += memcmp(data + auth_offset,
 384                                         vector->digest.data,
 385                                         vector->digest.length);
 386         }
 387
 388         if (res != 0)
 389                 res = 1;
 390
 391         return res;
 392 }
 393
 394 int
 395 cperf_throughput_test_runner(void *test_ctx)
 396 {
 397         struct cperf_throughput_ctx *ctx = test_ctx;
 398         struct cperf_op_result *res, *pres;
 399
 400         if (ctx->options->verify) {
 401                 res = rte_malloc(NULL, sizeof(struct cperf_op_result) *
 402                                 ctx->options->total_ops, 0);
 403                 if (res == NULL)
 404                         return 0;
 405         }
 406
 407         uint64_t ops_enqd = 0, ops_enqd_total = 0, ops_enqd_failed = 0;
 408         uint64_t ops_deqd = 0, ops_deqd_total = 0, ops_deqd_failed = 0;
 409
 410         uint64_t i, m_idx = 0, tsc_start, tsc_end, tsc_duration;
 411
 412         uint16_t ops_unused = 0;
 413         uint64_t idx = 0;
 414
 415         struct rte_crypto_op *ops[ctx->options->burst_sz];
 416         struct rte_crypto_op *ops_processed[ctx->options->burst_sz];
 417
 418         uint32_t lcore = rte_lcore_id();
 419
 420 #ifdef CPERF_LINEARIZATION_ENABLE
 421         struct rte_cryptodev_info dev_info;
 422         int linearize = 0;
 423
 424         /* Check if source mbufs require coalescing */
 425         if (ctx->options->segments_nb > 1) {
 426                 rte_cryptodev_info_get(ctx->dev_id, &dev_info);
 427                 if ((dev_info.feature_flags &
 428                                 RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER) == 0)
 429                         linearize = 1;
 430         }
 431 #endif /* CPERF_LINEARIZATION_ENABLE */
 432
 433         ctx->lcore_id = lcore;
 434
 435         if (!ctx->options->csv)
 436                 printf("\n# Running throughput test on device: %u, lcore: %u\n",
 437                         ctx->dev_id, lcore);
 438
 439         /* Warm up the host CPU before starting the test */
 440         for (i = 0; i < ctx->options->total_ops; i++)
 441                 rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id, NULL, 0);
 442
 443         tsc_start = rte_rdtsc_precise();
 444
 445         while (ops_enqd_total < ctx->options->total_ops) {
 446
 447                 uint16_t burst_size = ((ops_enqd_total + ctx->options->burst_sz)
 448                                 <= ctx->options->total_ops) ?
 449                                                 ctx->options->burst_sz :
 450                                                 ctx->options->total_ops -
 451                                                 ops_enqd_total;
 452
 453                 uint16_t ops_needed = burst_size - ops_unused;
 454
 455                 /* Allocate crypto ops from pool */
 456                 if (ops_needed != rte_crypto_op_bulk_alloc(
 457                                 ctx->crypto_op_pool,
 458                                 RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 459                                 ops, ops_needed))
 460                         return -1;
 461
 462                 /* Setup crypto op, attach mbuf etc */
 463                 (ctx->populate_ops)(ops, &ctx->mbufs_in[m_idx],
 464                                 &ctx->mbufs_out[m_idx],
 465                                 ops_needed, ctx->sess, ctx->options,
 466                                 ctx->test_vector);
 467
 468                 if (ctx->options->verify) {
 469                         for (i = 0; i < ops_needed; i++) {
 470                                 ops[i]->opaque_data = (void *)&res[idx];
 471                                 idx++;
 472                         }
 473                 }
 474
 475 #ifdef CPERF_LINEARIZATION_ENABLE
 476                 if (linearize) {
 477                         /* PMD doesn't support scatter-gather and source buffer
 478                          * is segmented.
 479                          * We need to linearize it before enqueuing.
 480                          */
 481                         for (i = 0; i < burst_size; i++)
 482                                 rte_pktmbuf_linearize(ops[i]->sym->m_src);
 483                 }
 484 #endif /* CPERF_LINEARIZATION_ENABLE */
 485
 486                 /* Enqueue burst of ops on crypto device */
 487                 ops_enqd = rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id,
 488                                 ops, burst_size);
 489                 if (ops_enqd < burst_size)
 490                         ops_enqd_failed++;
 491
 492                 /**
 493                  * Calculate number of ops not enqueued (mainly for hw
 494                  * accelerators whose ingress queue can fill up).
 495                  */
 496                 ops_unused = burst_size - ops_enqd;
 497                 ops_enqd_total += ops_enqd;
 498
 499
 500                 /* Dequeue processed burst of ops from crypto device */
 501                 ops_deqd = rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id,
 502                                 ops_processed, ctx->options->burst_sz);
 503
 504                 if (likely(ops_deqd))  {
 505
 506                         if (ctx->options->verify) {
 507                                 void *opq;
 508                                 for (i = 0; i < ops_deqd; i++) {
 509                                         opq = (ops_processed[i]->opaque_data);
 510                                         pres = (struct cperf_op_result *)opq;
 511                                         pres->status = ops_processed[i]->status;
 512                                 }
 513                         }
 514
 515                         /* free crypto ops so they can be reused. We don't free
 516                          * the mbufs here as we don't want to reuse them as
 517                          * the crypto operation will change the data and cause
 518                          * failures.
 519                          */
 520                         for (i = 0; i < ops_deqd; i++)
 521                                 rte_crypto_op_free(ops_processed[i]);
 522
 523                         ops_deqd_total += ops_deqd;
 524                 } else {
 525                         /**
 526                          * Count dequeue polls which didn't return any
 527                          * processed operations. This statistic is mainly
 528                          * relevant to hw accelerators.
 529                          */
 530                         ops_deqd_failed++;
 531                 }
 532
 533                 m_idx += ops_needed;
 534                 m_idx = m_idx + ctx->options->burst_sz > ctx->options->pool_sz ?
 535                                 0 : m_idx;
 536         }
 537
 538         /* Dequeue any operations still in the crypto device */
 539
 540         while (ops_deqd_total < ctx->options->total_ops) {
 541                 /* Sending 0 length burst to flush sw crypto device */
 542                 rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id, NULL, 0);
 543
 544                 /* dequeue burst */
 545                 ops_deqd = rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id,
 546                                 ops_processed, ctx->options->burst_sz);
 547                 if (ops_deqd == 0)
 548                         ops_deqd_failed++;
 549                 else {
 550                         if (ctx->options->verify) {
 551                                 void *opq;
 552                                 for (i = 0; i < ops_deqd; i++) {
 553                                         opq = (ops_processed[i]->opaque_data);
 554                                         pres = (struct cperf_op_result *)opq;
 555                                         pres->status = ops_processed[i]->status;
 556                                 }
 557                         }
 558
 559                         for (i = 0; i < ops_deqd; i++)
 560                                 rte_crypto_op_free(ops_processed[i]);
 561
 562                         ops_deqd_total += ops_deqd;
 563                 }
 564         }
 565
 566         tsc_end = rte_rdtsc_precise();
 567         tsc_duration = (tsc_end - tsc_start);
 568
 569         if (ctx->options->verify) {
 570                 struct rte_mbuf **mbufs;
 571
 572                 if (ctx->options->out_of_place == 1)
 573                         mbufs = ctx->mbufs_out;
 574                 else
 575                         mbufs = ctx->mbufs_in;
 576
 577                 for (i = 0; i < ctx->options->total_ops; i++) {
 578
 579                         if (res[i].status != RTE_CRYPTO_OP_STATUS_SUCCESS ||
 580                                         cperf_throughput_test_verifier(
 581                                         mbufs[i], ctx->options,
 582                                         ctx->test_vector)) {
 583
 584                                 ctx->results.ops_failed++;
 585                         }
 586                 }
 587
 588                 rte_free(res);
 589         }
 590
 591         /* Calculate average operations processed per second */
 592         ctx->results.ops_per_second = ((double)ctx->options->total_ops /
 593                         tsc_duration) * rte_get_tsc_hz();
 594
 595         /* Calculate average throughput (Gbps) in bits per second */
 596         ctx->results.throughput_gbps = ((ctx->results.ops_per_second *
 597                         ctx->options->buffer_sz * 8) / 1000000000);
 598
 599
 600         /* Calculate average cycles per byte */
 601         ctx->results.cycles_per_byte =  ((double)tsc_duration /
 602                         ctx->options->total_ops) / ctx->options->buffer_sz;
 603
 604         ctx->results.ops_enqueued = ops_enqd_total;
 605         ctx->results.ops_dequeued = ops_deqd_total;
 606
 607         ctx->results.ops_enqueued_failed = ops_enqd_failed;
 608         ctx->results.ops_dequeued_failed = ops_deqd_failed;
 609
 610         return 0;
 611 }
 612
 613
 614
 615 void
 616 cperf_throughput_test_destructor(void *arg)
 617 {
 618         struct cperf_throughput_ctx *ctx = arg;
 619         struct cperf_throughput_results *results = &ctx->results;
 620         static int only_once;
 621
 622         if (ctx == NULL)
 623                 return;
 624
 625         if (!ctx->options->csv) {
 626                 printf("\n# Device %d on lcore %u\n",
 627                                 ctx->dev_id, ctx->lcore_id);
 628                 printf("# Buffer Size(B)\t  Enqueued\t  Dequeued\tFailed Enq"
 629                                 "\tFailed Deq\tOps(Millions)\tThroughput(Gbps)"
 630                                 "\tCycles Per Byte\n");
 631
 632                 printf("\n%16u\t%10"PRIu64"\t%10"PRIu64"\t%10"PRIu64"\t"
 633                                 "%10"PRIu64"\t%16.4f\t%16.4f\t%15.2f\n",
 634                                 ctx->options->buffer_sz,
 635                                 results->ops_enqueued,
 636                                 results->ops_dequeued,
 637                                 results->ops_enqueued_failed,
 638                                 results->ops_dequeued_failed,
 639                                 results->ops_per_second/1000000,
 640                                 results->throughput_gbps,
 641                                 results->cycles_per_byte);
 642         } else {
 643                 if (!only_once)
 644                         printf("\n# CPU lcore id, Burst Size(B), "
 645                                 "Buffer Size(B),Enqueued,Dequeued,Failed Enq,"
 646                                 "Failed Deq,Ops(Millions),Throughput(Gbps),"
 647                                 "Cycles Per Byte\n");
 648                 only_once = 1;
 649
 650                 printf("%u;%u;%u;%"PRIu64";%"PRIu64";%"PRIu64";%"PRIu64";"
 651                                 "%.f3;%.f3;%.f3\n",
 652                                 ctx->lcore_id,
 653                                 ctx->options->burst_sz,
 654                                 ctx->options->buffer_sz,
 655                                 results->ops_enqueued,
 656                                 results->ops_dequeued,
 657                                 results->ops_enqueued_failed,
 658                                 results->ops_dequeued_failed,
 659                                 results->ops_per_second/1000000,
 660                                 results->throughput_gbps,
 661                                 results->cycles_per_byte);
 662         }
 663
 664         cperf_throughput_test_free(ctx, ctx->options->pool_sz);
 665 }