+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <inttypes.h>
-#include <stdarg.h>
-#include <errno.h>
-#include <sys/queue.h>
-
-#include <rte_common.h>
-#include <rte_log.h>
-#include <rte_debug.h>
-#include <rte_memory.h>
-#include <rte_memzone.h>
-#include <rte_launch.h>
-#include <rte_cycles.h>
-#include <rte_eal.h>
-#include <rte_per_lcore.h>
-#include <rte_lcore.h>
-#include <rte_atomic.h>
-#include <rte_branch_prediction.h>
-#include <rte_mempool.h>
-#include <rte_spinlock.h>
-#include <rte_malloc.h>
-
-#include "test.h"
-
-/*
- * Mempool performance
- * =======
- *
- * Each core get *n_keep* objects per bulk of *n_get_bulk*. Then,
- * objects are put back in the pool per bulk of *n_put_bulk*.
- *
- * This sequence is done during TIME_S seconds.
- *
- * This test is done on the following configurations:
- *
- * - Cores configuration (*cores*)
- *
- * - One core with cache
- * - Two cores with cache
- * - Max. cores with cache
- * - One core without cache
- * - Two cores without cache
- * - Max. cores without cache
- * - One core with user-owned cache
- * - Two cores with user-owned cache
- * - Max. cores with user-owned cache
- *
- * - Bulk size (*n_get_bulk*, *n_put_bulk*)
- *
- * - Bulk get from 1 to 32
- * - Bulk put from 1 to 32
- *
- * - Number of kept objects (*n_keep*)
- *
- * - 32
- * - 128
- */
-
-#define N 65536
-#define TIME_S 5
-#define MEMPOOL_ELT_SIZE 2048
-#define MAX_KEEP 128
-#define MEMPOOL_SIZE ((rte_lcore_count()*(MAX_KEEP+RTE_MEMPOOL_CACHE_MAX_SIZE))-1)
-
-#define LOG_ERR() printf("test failed at %s():%d\n", __func__, __LINE__)
-#define RET_ERR() do { \
- LOG_ERR(); \
- return -1; \
- } while (0)
-#define GOTO_ERR(var, label) do { \
- LOG_ERR(); \
- var = -1; \
- goto label; \
- } while (0)
-
-static struct rte_mempool *mp;
-static struct rte_mempool *mp_cache, *mp_nocache;
-static int use_external_cache;
-static unsigned external_cache_size = RTE_MEMPOOL_CACHE_MAX_SIZE;
-
-static rte_atomic32_t synchro;
-
-/* number of objects in one bulk operation (get or put) */
-static unsigned n_get_bulk;
-static unsigned n_put_bulk;
-
-/* number of objects retrived from mempool before putting them back */
-static unsigned n_keep;
-
-/* number of enqueues / dequeues */
-struct mempool_test_stats {
- uint64_t enq_count;
-} __rte_cache_aligned;
-
-static struct mempool_test_stats stats[RTE_MAX_LCORE];
-
-/*
- * save the object number in the first 4 bytes of object data. All
- * other bytes are set to 0.
- */
-static void
-my_obj_init(struct rte_mempool *mp, __attribute__((unused)) void *arg,
- void *obj, unsigned i)
-{
- uint32_t *objnum = obj;
- memset(obj, 0, mp->elt_size);
- *objnum = i;
-}
-
-static int
-per_lcore_mempool_test(__attribute__((unused)) void *arg)
-{
- void *obj_table[MAX_KEEP];
- unsigned i, idx;
- unsigned lcore_id = rte_lcore_id();
- int ret = 0;
- uint64_t start_cycles, end_cycles;
- uint64_t time_diff = 0, hz = rte_get_timer_hz();
- struct rte_mempool_cache *cache;
-
- if (use_external_cache) {
- /* Create a user-owned mempool cache. */
- cache = rte_mempool_cache_create(external_cache_size,
- SOCKET_ID_ANY);
- if (cache == NULL)
- RET_ERR();
- } else {
- /* May be NULL if cache is disabled. */
- cache = rte_mempool_default_cache(mp, lcore_id);
- }
-
- /* n_get_bulk and n_put_bulk must be divisors of n_keep */
- if (((n_keep / n_get_bulk) * n_get_bulk) != n_keep)
- GOTO_ERR(ret, out);
- if (((n_keep / n_put_bulk) * n_put_bulk) != n_keep)
- GOTO_ERR(ret, out);
-
- stats[lcore_id].enq_count = 0;
-
- /* wait synchro for slaves */
- if (lcore_id != rte_get_master_lcore())
- while (rte_atomic32_read(&synchro) == 0);
-
- start_cycles = rte_get_timer_cycles();
-
- while (time_diff/hz < TIME_S) {
- for (i = 0; likely(i < (N/n_keep)); i++) {
- /* get n_keep objects by bulk of n_bulk */
- idx = 0;
- while (idx < n_keep) {
- ret = rte_mempool_generic_get(mp,
- &obj_table[idx],
- n_get_bulk,
- cache, 0);
- if (unlikely(ret < 0)) {
- rte_mempool_dump(stdout, mp);
- /* in this case, objects are lost... */
- GOTO_ERR(ret, out);
- }
- idx += n_get_bulk;
- }
-
- /* put the objects back */
- idx = 0;
- while (idx < n_keep) {
- rte_mempool_generic_put(mp, &obj_table[idx],
- n_put_bulk,
- cache, 0);
- idx += n_put_bulk;
- }
- }
- end_cycles = rte_get_timer_cycles();
- time_diff = end_cycles - start_cycles;
- stats[lcore_id].enq_count += N;
- }
-
-out:
- if (use_external_cache) {
- rte_mempool_cache_flush(cache, mp);
- rte_mempool_cache_free(cache);
- }
-
- return ret;
-}
-
-/* launch all the per-lcore test, and display the result */
-static int
-launch_cores(unsigned cores)
-{
- unsigned lcore_id;
- uint64_t rate;
- int ret;
- unsigned cores_save = cores;
-
- rte_atomic32_set(&synchro, 0);
-
- /* reset stats */
- memset(stats, 0, sizeof(stats));
-
- printf("mempool_autotest cache=%u cores=%u n_get_bulk=%u "
- "n_put_bulk=%u n_keep=%u ",
- use_external_cache ?
- external_cache_size : (unsigned) mp->cache_size,
- cores, n_get_bulk, n_put_bulk, n_keep);
-
- if (rte_mempool_avail_count(mp) != MEMPOOL_SIZE) {
- printf("mempool is not full\n");
- return -1;
- }
-
- RTE_LCORE_FOREACH_SLAVE(lcore_id) {
- if (cores == 1)
- break;
- cores--;
- rte_eal_remote_launch(per_lcore_mempool_test,
- NULL, lcore_id);
- }
-
- /* start synchro and launch test on master */
- rte_atomic32_set(&synchro, 1);
-
- ret = per_lcore_mempool_test(NULL);
-
- cores = cores_save;
- RTE_LCORE_FOREACH_SLAVE(lcore_id) {
- if (cores == 1)
- break;
- cores--;
- if (rte_eal_wait_lcore(lcore_id) < 0)
- ret = -1;
- }
-
- if (ret < 0) {
- printf("per-lcore test returned -1\n");
- return -1;
- }
-
- rate = 0;
- for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++)
- rate += (stats[lcore_id].enq_count / TIME_S);
-
- printf("rate_persec=%" PRIu64 "\n", rate);
-
- return 0;
-}
-
-/* for a given number of core, launch all test cases */
-static int
-do_one_mempool_test(unsigned cores)
-{
- unsigned bulk_tab_get[] = { 1, 4, 32, 0 };
- unsigned bulk_tab_put[] = { 1, 4, 32, 0 };
- unsigned keep_tab[] = { 32, 128, 0 };
- unsigned *get_bulk_ptr;
- unsigned *put_bulk_ptr;
- unsigned *keep_ptr;
- int ret;
-
- for (get_bulk_ptr = bulk_tab_get; *get_bulk_ptr; get_bulk_ptr++) {
- for (put_bulk_ptr = bulk_tab_put; *put_bulk_ptr; put_bulk_ptr++) {
- for (keep_ptr = keep_tab; *keep_ptr; keep_ptr++) {
-
- n_get_bulk = *get_bulk_ptr;
- n_put_bulk = *put_bulk_ptr;
- n_keep = *keep_ptr;
- ret = launch_cores(cores);
-
- if (ret < 0)
- return -1;
- }
- }
- }
- return 0;
-}
-
-static int
-test_mempool_perf(void)
-{
- rte_atomic32_init(&synchro);
-
- /* create a mempool (without cache) */
- if (mp_nocache == NULL)
- mp_nocache = rte_mempool_create("perf_test_nocache", MEMPOOL_SIZE,
- MEMPOOL_ELT_SIZE, 0, 0,
- NULL, NULL,
- my_obj_init, NULL,
- SOCKET_ID_ANY, 0);
- if (mp_nocache == NULL)
- return -1;
-
- /* create a mempool (with cache) */
- if (mp_cache == NULL)
- mp_cache = rte_mempool_create("perf_test_cache", MEMPOOL_SIZE,
- MEMPOOL_ELT_SIZE,
- RTE_MEMPOOL_CACHE_MAX_SIZE, 0,
- NULL, NULL,
- my_obj_init, NULL,
- SOCKET_ID_ANY, 0);
- if (mp_cache == NULL)
- return -1;
-
- /* performance test with 1, 2 and max cores */
- printf("start performance test (without cache)\n");
- mp = mp_nocache;
-
- if (do_one_mempool_test(1) < 0)
- return -1;
-
- if (do_one_mempool_test(2) < 0)
- return -1;
-
- if (do_one_mempool_test(rte_lcore_count()) < 0)
- return -1;
-
- /* performance test with 1, 2 and max cores */
- printf("start performance test (with cache)\n");
- mp = mp_cache;
-
- if (do_one_mempool_test(1) < 0)
- return -1;
-
- if (do_one_mempool_test(2) < 0)
- return -1;
-
- if (do_one_mempool_test(rte_lcore_count()) < 0)
- return -1;
-
- /* performance test with 1, 2 and max cores */
- printf("start performance test (with user-owned cache)\n");
- mp = mp_nocache;
- use_external_cache = 1;
-
- if (do_one_mempool_test(1) < 0)
- return -1;
-
- if (do_one_mempool_test(2) < 0)
- return -1;
-
- if (do_one_mempool_test(rte_lcore_count()) < 0)
- return -1;
-
- rte_mempool_list_dump(stdout);
-
- return 0;
-}
-
-REGISTER_TEST_COMMAND(mempool_perf_autotest, test_mempool_perf);
Code Review / deb_dpdk.git / blobdiff