4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 #include <sys/queue.h>
43 #include <rte_common.h>
45 #include <rte_debug.h>
46 #include <rte_memory.h>
47 #include <rte_launch.h>
48 #include <rte_cycles.h>
50 #include <rte_per_lcore.h>
51 #include <rte_lcore.h>
52 #include <rte_atomic.h>
53 #include <rte_branch_prediction.h>
54 #include <rte_mempool.h>
55 #include <rte_spinlock.h>
56 #include <rte_malloc.h>
64 * Each core get *n_keep* objects per bulk of *n_get_bulk*. Then,
65 * objects are put back in the pool per bulk of *n_put_bulk*.
67 * This sequence is done during TIME_S seconds.
69 * This test is done on the following configurations:
71 * - Cores configuration (*cores*)
73 * - One core with cache
74 * - Two cores with cache
75 * - Max. cores with cache
76 * - One core without cache
77 * - Two cores without cache
78 * - Max. cores without cache
79 * - One core with user-owned cache
80 * - Two cores with user-owned cache
81 * - Max. cores with user-owned cache
83 * - Bulk size (*n_get_bulk*, *n_put_bulk*)
85 * - Bulk get from 1 to 32
86 * - Bulk put from 1 to 32
88 * - Number of kept objects (*n_keep*)
96 #define MEMPOOL_ELT_SIZE 2048
98 #define MEMPOOL_SIZE ((rte_lcore_count()*(MAX_KEEP+RTE_MEMPOOL_CACHE_MAX_SIZE))-1)
100 #define LOG_ERR() printf("test failed at %s():%d\n", __func__, __LINE__)
101 #define RET_ERR() do { \
105 #define GOTO_ERR(var, label) do { \
111 static int use_external_cache;
112 static unsigned external_cache_size = RTE_MEMPOOL_CACHE_MAX_SIZE;
114 static rte_atomic32_t synchro;
116 /* number of objects in one bulk operation (get or put) */
117 static unsigned n_get_bulk;
118 static unsigned n_put_bulk;
120 /* number of objects retrived from mempool before putting them back */
121 static unsigned n_keep;
123 /* number of enqueues / dequeues */
124 struct mempool_test_stats {
126 } __rte_cache_aligned;
128 static struct mempool_test_stats stats[RTE_MAX_LCORE];
131 * save the object number in the first 4 bytes of object data. All
132 * other bytes are set to 0.
135 my_obj_init(struct rte_mempool *mp, __attribute__((unused)) void *arg,
136 void *obj, unsigned i)
138 uint32_t *objnum = obj;
139 memset(obj, 0, mp->elt_size);
144 per_lcore_mempool_test(void *arg)
146 void *obj_table[MAX_KEEP];
148 struct rte_mempool *mp = arg;
149 unsigned lcore_id = rte_lcore_id();
151 uint64_t start_cycles, end_cycles;
152 uint64_t time_diff = 0, hz = rte_get_timer_hz();
153 struct rte_mempool_cache *cache;
155 if (use_external_cache) {
156 /* Create a user-owned mempool cache. */
157 cache = rte_mempool_cache_create(external_cache_size,
162 /* May be NULL if cache is disabled. */
163 cache = rte_mempool_default_cache(mp, lcore_id);
166 /* n_get_bulk and n_put_bulk must be divisors of n_keep */
167 if (((n_keep / n_get_bulk) * n_get_bulk) != n_keep)
169 if (((n_keep / n_put_bulk) * n_put_bulk) != n_keep)
172 stats[lcore_id].enq_count = 0;
174 /* wait synchro for slaves */
175 if (lcore_id != rte_get_master_lcore())
176 while (rte_atomic32_read(&synchro) == 0);
178 start_cycles = rte_get_timer_cycles();
180 while (time_diff/hz < TIME_S) {
181 for (i = 0; likely(i < (N/n_keep)); i++) {
182 /* get n_keep objects by bulk of n_bulk */
184 while (idx < n_keep) {
185 ret = rte_mempool_generic_get(mp,
189 if (unlikely(ret < 0)) {
190 rte_mempool_dump(stdout, mp);
191 /* in this case, objects are lost... */
197 /* put the objects back */
199 while (idx < n_keep) {
200 rte_mempool_generic_put(mp, &obj_table[idx],
206 end_cycles = rte_get_timer_cycles();
207 time_diff = end_cycles - start_cycles;
208 stats[lcore_id].enq_count += N;
212 if (use_external_cache) {
213 rte_mempool_cache_flush(cache, mp);
214 rte_mempool_cache_free(cache);
220 /* launch all the per-lcore test, and display the result */
222 launch_cores(struct rte_mempool *mp, unsigned int cores)
227 unsigned cores_save = cores;
229 rte_atomic32_set(&synchro, 0);
232 memset(stats, 0, sizeof(stats));
234 printf("mempool_autotest cache=%u cores=%u n_get_bulk=%u "
235 "n_put_bulk=%u n_keep=%u ",
237 external_cache_size : (unsigned) mp->cache_size,
238 cores, n_get_bulk, n_put_bulk, n_keep);
240 if (rte_mempool_avail_count(mp) != MEMPOOL_SIZE) {
241 printf("mempool is not full\n");
245 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
249 rte_eal_remote_launch(per_lcore_mempool_test,
253 /* start synchro and launch test on master */
254 rte_atomic32_set(&synchro, 1);
256 ret = per_lcore_mempool_test(mp);
259 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
263 if (rte_eal_wait_lcore(lcore_id) < 0)
268 printf("per-lcore test returned -1\n");
273 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++)
274 rate += (stats[lcore_id].enq_count / TIME_S);
276 printf("rate_persec=%" PRIu64 "\n", rate);
281 /* for a given number of core, launch all test cases */
283 do_one_mempool_test(struct rte_mempool *mp, unsigned int cores)
285 unsigned bulk_tab_get[] = { 1, 4, 32, 0 };
286 unsigned bulk_tab_put[] = { 1, 4, 32, 0 };
287 unsigned keep_tab[] = { 32, 128, 0 };
288 unsigned *get_bulk_ptr;
289 unsigned *put_bulk_ptr;
293 for (get_bulk_ptr = bulk_tab_get; *get_bulk_ptr; get_bulk_ptr++) {
294 for (put_bulk_ptr = bulk_tab_put; *put_bulk_ptr; put_bulk_ptr++) {
295 for (keep_ptr = keep_tab; *keep_ptr; keep_ptr++) {
297 n_get_bulk = *get_bulk_ptr;
298 n_put_bulk = *put_bulk_ptr;
300 ret = launch_cores(mp, cores);
311 test_mempool_perf(void)
313 struct rte_mempool *mp_cache = NULL;
314 struct rte_mempool *mp_nocache = NULL;
315 struct rte_mempool *default_pool = NULL;
318 rte_atomic32_init(&synchro);
320 /* create a mempool (without cache) */
321 mp_nocache = rte_mempool_create("perf_test_nocache", MEMPOOL_SIZE,
322 MEMPOOL_ELT_SIZE, 0, 0,
326 if (mp_nocache == NULL)
329 /* create a mempool (with cache) */
330 mp_cache = rte_mempool_create("perf_test_cache", MEMPOOL_SIZE,
332 RTE_MEMPOOL_CACHE_MAX_SIZE, 0,
336 if (mp_cache == NULL)
339 /* Create a mempool based on Default handler */
340 default_pool = rte_mempool_create_empty("default_pool",
346 if (default_pool == NULL) {
347 printf("cannot allocate %s mempool\n",
348 RTE_MBUF_DEFAULT_MEMPOOL_OPS);
352 if (rte_mempool_set_ops_byname(default_pool,
353 RTE_MBUF_DEFAULT_MEMPOOL_OPS, NULL)
355 printf("cannot set %s handler\n", RTE_MBUF_DEFAULT_MEMPOOL_OPS);
359 if (rte_mempool_populate_default(default_pool) < 0) {
360 printf("cannot populate %s mempool\n",
361 RTE_MBUF_DEFAULT_MEMPOOL_OPS);
365 rte_mempool_obj_iter(default_pool, my_obj_init, NULL);
367 /* performance test with 1, 2 and max cores */
368 printf("start performance test (without cache)\n");
370 if (do_one_mempool_test(mp_nocache, 1) < 0)
373 if (do_one_mempool_test(mp_nocache, 2) < 0)
376 if (do_one_mempool_test(mp_nocache, rte_lcore_count()) < 0)
379 /* performance test with 1, 2 and max cores */
380 printf("start performance test for %s (without cache)\n",
381 RTE_MBUF_DEFAULT_MEMPOOL_OPS);
383 if (do_one_mempool_test(default_pool, 1) < 0)
386 if (do_one_mempool_test(default_pool, 2) < 0)
389 if (do_one_mempool_test(default_pool, rte_lcore_count()) < 0)
392 /* performance test with 1, 2 and max cores */
393 printf("start performance test (with cache)\n");
395 if (do_one_mempool_test(mp_cache, 1) < 0)
398 if (do_one_mempool_test(mp_cache, 2) < 0)
401 if (do_one_mempool_test(mp_cache, rte_lcore_count()) < 0)
404 /* performance test with 1, 2 and max cores */
405 printf("start performance test (with user-owned cache)\n");
406 use_external_cache = 1;
408 if (do_one_mempool_test(mp_nocache, 1) < 0)
411 if (do_one_mempool_test(mp_nocache, 2) < 0)
414 if (do_one_mempool_test(mp_nocache, rte_lcore_count()) < 0)
417 rte_mempool_list_dump(stdout);
422 rte_mempool_free(mp_cache);
423 rte_mempool_free(mp_nocache);
424 rte_mempool_free(default_pool);
428 REGISTER_TEST_COMMAND(mempool_perf_autotest, test_mempool_perf);