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40 #include <sys/queue.h>
42 #include <rte_common.h>
43 #include <rte_memory.h>
44 #include <rte_memzone.h>
45 #include <rte_per_lcore.h>
46 #include <rte_launch.h>
48 #include <rte_per_lcore.h>
49 #include <rte_lcore.h>
50 #include <rte_malloc.h>
51 #include <rte_cycles.h>
52 #include <rte_random.h>
53 #include <rte_string_fns.h>
60 #define QUOTE(x) QUOTE_(x)
61 #define MALLOC_MEMZONE_SIZE QUOTE(RTE_MALLOC_MEMZONE_SIZE)
67 * Allocate some dynamic memory from heap (3 areas). Check that areas
68 * don't overlap and that alignment constraints match. This test is
69 * done many times on different lcores simultaneously.
72 /* Test if memory overlaps: return 1 if true, or 0 if false. */
74 is_memory_overlap(void *p1, size_t len1, void *p2, size_t len2)
76 unsigned long ptr1 = (unsigned long)p1;
77 unsigned long ptr2 = (unsigned long)p2;
79 if (ptr2 >= ptr1 && (ptr2 - ptr1) < len1)
81 else if (ptr2 < ptr1 && (ptr1 - ptr2) < len2)
87 is_aligned(void *p, int align)
89 unsigned long addr = (unsigned long)p;
90 unsigned mask = align - 1;
98 test_align_overlap_per_lcore(__attribute__((unused)) void *arg)
100 const unsigned align1 = 8,
104 void *p1 = NULL, *p2 = NULL, *p3 = NULL;
107 for (i = 0; i < N; i++) {
108 p1 = rte_zmalloc("dummy", 1000, align1);
110 printf("rte_zmalloc returned NULL (i=%u)\n", i);
114 for(j = 0; j < 1000 ; j++) {
115 if( *(char *)p1 != 0) {
116 printf("rte_zmalloc didn't zero"
117 "the allocated memory\n");
121 p2 = rte_malloc("dummy", 1000, align2);
123 printf("rte_malloc returned NULL (i=%u)\n", i);
128 p3 = rte_malloc("dummy", 1000, align3);
130 printf("rte_malloc returned NULL (i=%u)\n", i);
136 if (is_memory_overlap(p1, 1000, p2, 1000)) {
137 printf("p1 and p2 overlaps\n");
140 if (is_memory_overlap(p2, 1000, p3, 1000)) {
141 printf("p2 and p3 overlaps\n");
144 if (is_memory_overlap(p1, 1000, p3, 1000)) {
145 printf("p1 and p3 overlaps\n");
148 if (!is_aligned(p1, align1)) {
149 printf("p1 is not aligned\n");
152 if (!is_aligned(p2, align2)) {
153 printf("p2 is not aligned\n");
156 if (!is_aligned(p3, align3)) {
157 printf("p3 is not aligned\n");
164 rte_malloc_dump_stats(stdout, "dummy");
170 test_reordered_free_per_lcore(__attribute__((unused)) void *arg)
172 const unsigned align1 = 8,
179 for (i = 0; i < 30; i++) {
180 p1 = rte_zmalloc("dummy", 1000, align1);
182 printf("rte_zmalloc returned NULL (i=%u)\n", i);
186 for(j = 0; j < 1000 ; j++) {
187 if( *(char *)p1 != 0) {
188 printf("rte_zmalloc didn't zero"
189 "the allocated memory\n");
193 /* use calloc to allocate 1000 16-byte items this time */
194 p2 = rte_calloc("dummy", 1000, 16, align2);
195 /* for third request use regular malloc again */
196 p3 = rte_malloc("dummy", 1000, align3);
198 printf("rte_malloc returned NULL (i=%u)\n", i);
202 if (is_memory_overlap(p1, 1000, p2, 1000)) {
203 printf("p1 and p2 overlaps\n");
206 if (is_memory_overlap(p2, 1000, p3, 1000)) {
207 printf("p2 and p3 overlaps\n");
210 if (is_memory_overlap(p1, 1000, p3, 1000)) {
211 printf("p1 and p3 overlaps\n");
214 if (!is_aligned(p1, align1)) {
215 printf("p1 is not aligned\n");
218 if (!is_aligned(p2, align2)) {
219 printf("p2 is not aligned\n");
222 if (!is_aligned(p3, align3)) {
223 printf("p3 is not aligned\n");
226 /* try freeing in every possible order */
260 rte_malloc_dump_stats(stdout, "dummy");
265 /* test function inside the malloc lib*/
267 test_str_to_size(void)
273 {{ "5G", (uint64_t)5 * 1024 * 1024 *1024 },
274 {"0x20g", (uint64_t)0x20 * 1024 * 1024 *1024},
275 {"10M", 10 * 1024 * 1024},
276 {"050m", 050 * 1024 * 1024},
282 {"-1", 0}, /* negative values return 0 */
285 {"18446744073709551616", 0} /* ULLONG_MAX + 1 == out of range*/
288 for (i = 0; i < sizeof(test_values)/sizeof(test_values[0]); i++)
289 if (rte_str_to_size(test_values[i].str) != test_values[i].value)
298 struct rte_malloc_socket_stats pre_stats, post_stats;
299 size_t size =rte_str_to_size(MALLOC_MEMZONE_SIZE)*2;
301 #ifndef RTE_LIBRTE_MALLOC_DEBUG
302 int overhead = RTE_CACHE_LINE_SIZE + RTE_CACHE_LINE_SIZE;
304 int overhead = RTE_CACHE_LINE_SIZE + RTE_CACHE_LINE_SIZE + RTE_CACHE_LINE_SIZE;
307 rte_malloc_get_socket_stats(socket, &pre_stats);
309 void *p1 = rte_malloc_socket("BIG", size , align, socket);
312 rte_malloc_get_socket_stats(socket,&post_stats);
314 /* Check statistics reported are correct */
315 /* Allocation may increase, or may be the same as before big allocation */
316 if (post_stats.heap_totalsz_bytes < pre_stats.heap_totalsz_bytes) {
317 printf("Malloc statistics are incorrect - heap_totalsz_bytes\n");
320 /* Check that allocated size adds up correctly */
321 if (post_stats.heap_allocsz_bytes !=
322 pre_stats.heap_allocsz_bytes + size + align + overhead) {
323 printf("Malloc statistics are incorrect - alloc_size\n");
326 /* Check free size against tested allocated size */
327 if (post_stats.heap_freesz_bytes !=
328 post_stats.heap_totalsz_bytes - post_stats.heap_allocsz_bytes) {
329 printf("Malloc statistics are incorrect - heap_freesz_bytes\n");
332 /* Number of allocated blocks must increase after allocation */
333 if (post_stats.alloc_count != pre_stats.alloc_count + 1) {
334 printf("Malloc statistics are incorrect - alloc_count\n");
337 /* New blocks now available - just allocated 1 but also 1 new free */
338 if (post_stats.free_count != pre_stats.free_count &&
339 post_stats.free_count != pre_stats.free_count - 1) {
340 printf("Malloc statistics are incorrect - free_count\n");
349 test_multi_alloc_statistics(void)
352 struct rte_malloc_socket_stats pre_stats, post_stats ,first_stats, second_stats;
355 #ifndef RTE_LIBRTE_MALLOC_DEBUG
356 int trailer_size = 0;
358 int trailer_size = RTE_CACHE_LINE_SIZE;
360 int overhead = RTE_CACHE_LINE_SIZE + trailer_size;
362 rte_malloc_get_socket_stats(socket, &pre_stats);
364 void *p1 = rte_malloc_socket("stats", size , align, socket);
368 rte_malloc_dump_stats(stdout, "stats");
370 rte_malloc_get_socket_stats(socket,&post_stats);
371 /* Check statistics reported are correct */
372 /* All post stats should be equal to pre stats after alloc freed */
373 if ((post_stats.heap_totalsz_bytes != pre_stats.heap_totalsz_bytes) &&
374 (post_stats.heap_freesz_bytes!=pre_stats.heap_freesz_bytes) &&
375 (post_stats.heap_allocsz_bytes!=pre_stats.heap_allocsz_bytes)&&
376 (post_stats.alloc_count!=pre_stats.alloc_count)&&
377 (post_stats.free_count!=pre_stats.free_count)) {
378 printf("Malloc statistics are incorrect - freed alloc\n");
381 /* Check two consecutive allocations */
384 rte_malloc_get_socket_stats(socket,&pre_stats);
385 void *p2 = rte_malloc_socket("add", size ,align, socket);
388 rte_malloc_get_socket_stats(socket,&first_stats);
390 void *p3 = rte_malloc_socket("add2", size,align, socket);
394 rte_malloc_get_socket_stats(socket,&second_stats);
399 /* After freeing both allocations check stats return to original */
400 rte_malloc_get_socket_stats(socket, &post_stats);
403 * Check that no new blocks added after small allocations
404 * i.e. < RTE_MALLOC_MEMZONE_SIZE
406 if(second_stats.heap_totalsz_bytes != first_stats.heap_totalsz_bytes) {
407 printf("Incorrect heap statistics: Total size \n");
410 /* Check allocated size is equal to two additions plus overhead */
411 if(second_stats.heap_allocsz_bytes !=
412 size + overhead + first_stats.heap_allocsz_bytes) {
413 printf("Incorrect heap statistics: Allocated size \n");
416 /* Check that allocation count increments correctly i.e. +1 */
417 if (second_stats.alloc_count != first_stats.alloc_count + 1) {
418 printf("Incorrect heap statistics: Allocated count \n");
422 if (second_stats.free_count != first_stats.free_count){
423 printf("Incorrect heap statistics: Free count \n");
427 /* Make sure that we didn't touch our greatest chunk: 2 * 11M) */
428 if (post_stats.greatest_free_size != pre_stats.greatest_free_size) {
429 printf("Incorrect heap statistics: Greatest free size \n");
432 /* Free size must equal the original free size minus the new allocation*/
433 if (first_stats.heap_freesz_bytes <= second_stats.heap_freesz_bytes) {
434 printf("Incorrect heap statistics: Free size \n");
438 if ((post_stats.heap_totalsz_bytes != pre_stats.heap_totalsz_bytes) &&
439 (post_stats.heap_freesz_bytes!=pre_stats.heap_freesz_bytes) &&
440 (post_stats.heap_allocsz_bytes!=pre_stats.heap_allocsz_bytes)&&
441 (post_stats.alloc_count!=pre_stats.alloc_count)&&
442 (post_stats.free_count!=pre_stats.free_count)) {
443 printf("Malloc statistics are incorrect - freed alloc\n");
450 test_memzone_size_alloc(void)
452 void *p1 = rte_malloc("BIG", (size_t)(rte_str_to_size(MALLOC_MEMZONE_SIZE) - 128), 64);
456 /* one extra check - check no crashes if free(NULL) */
462 test_rte_malloc_type_limits(void)
464 /* The type-limits functionality is not yet implemented,
465 * so always return 0 no matter what the retval.
467 const char *typename = "limit_test";
468 rte_malloc_set_limit(typename, 64 * 1024);
469 rte_malloc_dump_stats(stdout, typename);
476 const char hello_str[] = "Hello, world!";
477 const unsigned size1 = 1024;
478 const unsigned size2 = size1 + 1024;
479 const unsigned size3 = size2;
480 const unsigned size4 = size3 + 1024;
482 /* test data is the same even if element is moved*/
483 char *ptr1 = rte_zmalloc(NULL, size1, RTE_CACHE_LINE_SIZE);
485 printf("NULL pointer returned from rte_zmalloc\n");
488 snprintf(ptr1, size1, "%s" ,hello_str);
489 char *ptr2 = rte_realloc(ptr1, size2, RTE_CACHE_LINE_SIZE);
492 printf("NULL pointer returned from rte_realloc\n");
496 printf("unexpected - ptr1 == ptr2\n");
498 if (strcmp(ptr2, hello_str) != 0){
499 printf("Error - lost data from pointed area\n");
504 for (i = strnlen(hello_str, sizeof(hello_str)); i < size1; i++)
506 printf("Bad data in realloc\n");
510 /* now allocate third element, free the second
511 * and resize third. It should not move. (ptr1 is now invalid)
513 char *ptr3 = rte_zmalloc(NULL, size3, RTE_CACHE_LINE_SIZE);
515 printf("NULL pointer returned from rte_zmalloc\n");
519 for (i = 0; i < size3; i++)
521 printf("Bad data in zmalloc\n");
527 /* first resize to half the size of the freed block */
528 char *ptr4 = rte_realloc(ptr3, size4, RTE_CACHE_LINE_SIZE);
530 printf("NULL pointer returned from rte_realloc\n");
535 printf("Unexpected - ptr4 != ptr3\n");
539 /* now resize again to the full size of the freed block */
540 ptr4 = rte_realloc(ptr3, size3 + size2 + size1, RTE_CACHE_LINE_SIZE);
542 printf("Unexpected - ptr4 != ptr3 on second resize\n");
548 /* now try a resize to a smaller size, see if it works */
549 const unsigned size5 = 1024;
550 const unsigned size6 = size5 / 2;
551 char *ptr5 = rte_malloc(NULL, size5, RTE_CACHE_LINE_SIZE);
553 printf("NULL pointer returned from rte_malloc\n");
556 char *ptr6 = rte_realloc(ptr5, size6, RTE_CACHE_LINE_SIZE);
558 printf("NULL pointer returned from rte_realloc\n");
563 printf("Error, resizing to a smaller size moved data\n");
569 /* check for behaviour changing alignment */
570 const unsigned size7 = 1024;
571 const unsigned orig_align = RTE_CACHE_LINE_SIZE;
572 unsigned new_align = RTE_CACHE_LINE_SIZE * 2;
573 char *ptr7 = rte_malloc(NULL, size7, orig_align);
575 printf("NULL pointer returned from rte_malloc\n");
578 /* calc an alignment we don't already have */
579 while(RTE_PTR_ALIGN(ptr7, new_align) == ptr7)
581 char *ptr8 = rte_realloc(ptr7, size7, new_align);
583 printf("NULL pointer returned from rte_realloc\n");
587 if (RTE_PTR_ALIGN(ptr8, new_align) != ptr8){
588 printf("Failure to re-align data\n");
594 /* test behaviour when there is a free block after current one,
595 * but its not big enough
597 unsigned size9 = 1024, size10 = 1024;
598 unsigned size11 = size9 + size10 + 256;
599 char *ptr9 = rte_malloc(NULL, size9, RTE_CACHE_LINE_SIZE);
601 printf("NULL pointer returned from rte_malloc\n");
604 char *ptr10 = rte_malloc(NULL, size10, RTE_CACHE_LINE_SIZE);
606 printf("NULL pointer returned from rte_malloc\n");
610 char *ptr11 = rte_realloc(ptr10, size11, RTE_CACHE_LINE_SIZE);
612 printf("NULL pointer returned from rte_realloc\n");
617 printf("Error, unexpected that realloc has not created new buffer\n");
623 /* check we don't crash if we pass null to realloc
624 * We should get a malloc of the size requested*/
625 const size_t size12 = 1024;
627 char *ptr12 = rte_realloc(NULL, size12, RTE_CACHE_LINE_SIZE);
629 printf("NULL pointer returned from rte_realloc\n");
632 if (rte_malloc_validate(ptr12, &size12_check) < 0 ||
633 size12_check != size12){
642 test_random_alloc_free(void *_ __attribute__((unused)))
645 struct mem_list *next;
651 rte_srand((unsigned)rte_rdtsc());
653 for (i = 0; i < N; i++){
654 unsigned free_mem = 0;
655 size_t allocated_size;
657 const unsigned mem_size = sizeof(struct mem_list) + \
658 rte_rand() % (64 * 1024);
659 const unsigned align = 1 << (rte_rand() % 12); /* up to 4k alignment */
660 struct mem_list *entry = rte_malloc(NULL,
664 if (RTE_PTR_ALIGN(entry, align)!= entry)
666 if (rte_malloc_validate(entry, &allocated_size) == -1
667 || allocated_size < mem_size)
669 memset(entry->data, rte_lcore_id(),
670 mem_size - sizeof(*entry));
671 entry->next = list_head;
672 if (rte_malloc_validate(entry, NULL) == -1)
677 /* switch to freeing the memory with a 20% probability */
678 free_mem = ((rte_rand() % 10) >= 8);
681 struct mem_list *entry = list_head;
682 list_head = list_head->next;
686 printf("Lcore %u allocated/freed %u blocks\n", rte_lcore_id(), count);
690 #define err_return() do { \
691 printf("%s: %d - Error\n", __func__, __LINE__); \
696 test_rte_malloc_validate(void)
698 const size_t request_size = 1024;
699 size_t allocated_size;
700 char *data_ptr = rte_malloc(NULL, request_size, RTE_CACHE_LINE_SIZE);
701 #ifdef RTE_LIBRTE_MALLOC_DEBUG
703 char *over_write_vals = NULL;
706 if (data_ptr == NULL) {
707 printf("%s: %d - Allocation error\n", __func__, __LINE__);
711 /* check that a null input returns -1 */
712 if (rte_malloc_validate(NULL, NULL) != -1)
715 /* check that we get ok on a valid pointer */
716 if (rte_malloc_validate(data_ptr, &allocated_size) < 0)
719 /* check that the returned size is ok */
720 if (allocated_size < request_size)
723 #ifdef RTE_LIBRTE_MALLOC_DEBUG
725 /****** change the header to be bad */
727 over_write_vals = (char *)((uintptr_t)data_ptr - sizeof(save_buf));
728 /* first save the data as a backup before overwriting it */
729 memcpy(save_buf, over_write_vals, sizeof(save_buf));
730 memset(over_write_vals, 1, sizeof(save_buf));
731 /* then run validate */
732 retval = rte_malloc_validate(data_ptr, NULL);
733 /* finally restore the data again */
734 memcpy(over_write_vals, save_buf, sizeof(save_buf));
735 /* check we previously had an error */
739 /* check all ok again */
740 if (rte_malloc_validate(data_ptr, &allocated_size) < 0)
743 /**** change the trailer to be bad */
744 over_write_vals = (char *)((uintptr_t)data_ptr + allocated_size);
745 /* first save the data as a backup before overwriting it */
746 memcpy(save_buf, over_write_vals, sizeof(save_buf));
747 memset(over_write_vals, 1, sizeof(save_buf));
748 /* then run validate */
749 retval = rte_malloc_validate(data_ptr, NULL);
750 /* finally restore the data again */
751 memcpy(over_write_vals, save_buf, sizeof(save_buf));
755 /* check all ok again */
756 if (rte_malloc_validate(data_ptr, &allocated_size) < 0)
770 test_zero_aligned_alloc(void)
772 char *p1 = rte_malloc(NULL,1024, 0);
775 if (!rte_is_aligned(p1, RTE_CACHE_LINE_SIZE))
782 if (p1) rte_free(p1);
787 test_malloc_bad_params(void)
789 const char *type = NULL;
791 unsigned align = RTE_CACHE_LINE_SIZE;
793 /* rte_malloc expected to return null with inappropriate size */
794 char *bad_ptr = rte_malloc(type, size, align);
798 /* rte_malloc expected to return null with inappropriate alignment */
802 bad_ptr = rte_malloc(type, size, align);
809 /* clean up pointer */
815 /* Check if memory is avilable on a specific socket */
817 is_mem_on_socket(int32_t socket)
819 const struct rte_memseg *ms = rte_eal_get_physmem_layout();
822 for (i = 0; i < RTE_MAX_MEMSEG; i++) {
823 if (socket == ms[i].socket_id)
830 * Find what socket a memory address is on. Only works for addresses within
831 * memsegs, not heap or stack...
834 addr_to_socket(void * addr)
836 const struct rte_memseg *ms = rte_eal_get_physmem_layout();
839 for (i = 0; i < RTE_MAX_MEMSEG; i++) {
840 if ((ms[i].addr <= addr) &&
842 ((uintptr_t)ms[i].addr + (uintptr_t)ms[i].len)))
843 return ms[i].socket_id;
848 /* Test using rte_[c|m|zm]alloc_socket() on a specific socket */
850 test_alloc_single_socket(int32_t socket)
852 const char *type = NULL;
853 const size_t size = 10;
854 const unsigned align = 0;
856 int32_t desired_socket = (socket == SOCKET_ID_ANY) ?
857 (int32_t)rte_socket_id() : socket;
859 /* Test rte_calloc_socket() */
860 mem = rte_calloc_socket(type, size, sizeof(char), align, socket);
863 if (addr_to_socket(mem) != desired_socket) {
869 /* Test rte_malloc_socket() */
870 mem = rte_malloc_socket(type, size, align, socket);
873 if (addr_to_socket(mem) != desired_socket) {
878 /* Test rte_zmalloc_socket() */
879 mem = rte_zmalloc_socket(type, size, align, socket);
882 if (addr_to_socket(mem) != desired_socket) {
892 test_alloc_socket(void)
894 unsigned socket_count = 0;
897 if (test_alloc_single_socket(SOCKET_ID_ANY) < 0)
900 for (i = 0; i < RTE_MAX_NUMA_NODES; i++) {
901 if (is_mem_on_socket(i)) {
903 if (test_alloc_single_socket(i) < 0) {
904 printf("Fail: rte_malloc_socket(..., %u) did not succeed\n",
910 if (test_alloc_single_socket(i) == 0) {
911 printf("Fail: rte_malloc_socket(..., %u) succeeded\n",
918 /* Print warnign if only a single socket, but don't fail the test */
919 if (socket_count < 2) {
920 printf("WARNING: alloc_socket test needs memory on multiple sockets!\n");
932 if (test_str_to_size() < 0){
933 printf("test_str_to_size() failed\n");
936 else printf("test_str_to_size() passed\n");
938 if (test_memzone_size_alloc() < 0){
939 printf("test_memzone_size_alloc() failed\n");
942 else printf("test_memzone_size_alloc() passed\n");
944 if (test_big_alloc() < 0){
945 printf("test_big_alloc() failed\n");
948 else printf("test_big_alloc() passed\n");
950 if (test_zero_aligned_alloc() < 0){
951 printf("test_zero_aligned_alloc() failed\n");
954 else printf("test_zero_aligned_alloc() passed\n");
956 if (test_malloc_bad_params() < 0){
957 printf("test_malloc_bad_params() failed\n");
960 else printf("test_malloc_bad_params() passed\n");
962 if (test_realloc() < 0){
963 printf("test_realloc() failed\n");
966 else printf("test_realloc() passed\n");
968 /*----------------------------*/
969 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
970 rte_eal_remote_launch(test_align_overlap_per_lcore, NULL, lcore_id);
973 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
974 if (rte_eal_wait_lcore(lcore_id) < 0)
978 printf("test_align_overlap_per_lcore() failed\n");
981 else printf("test_align_overlap_per_lcore() passed\n");
983 /*----------------------------*/
984 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
985 rte_eal_remote_launch(test_reordered_free_per_lcore, NULL, lcore_id);
988 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
989 if (rte_eal_wait_lcore(lcore_id) < 0)
993 printf("test_reordered_free_per_lcore() failed\n");
996 else printf("test_reordered_free_per_lcore() passed\n");
998 /*----------------------------*/
999 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1000 rte_eal_remote_launch(test_random_alloc_free, NULL, lcore_id);
1003 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1004 if (rte_eal_wait_lcore(lcore_id) < 0)
1008 printf("test_random_alloc_free() failed\n");
1011 else printf("test_random_alloc_free() passed\n");
1013 /*----------------------------*/
1014 ret = test_rte_malloc_type_limits();
1016 printf("test_rte_malloc_type_limits() failed\n");
1019 /* TODO: uncomment following line once type limits are valid */
1020 /*else printf("test_rte_malloc_type_limits() passed\n");*/
1022 /*----------------------------*/
1023 ret = test_rte_malloc_validate();
1025 printf("test_rte_malloc_validate() failed\n");
1028 else printf("test_rte_malloc_validate() passed\n");
1030 ret = test_alloc_socket();
1032 printf("test_alloc_socket() failed\n");
1035 else printf("test_alloc_socket() passed\n");
1037 ret = test_multi_alloc_statistics();
1039 printf("test_multi_alloc_statistics() failed\n");
1043 printf("test_multi_alloc_statistics() passed\n");
1048 static struct test_command malloc_cmd = {
1049 .command = "malloc_autotest",
1050 .callback = test_malloc,
1052 REGISTER_TEST_COMMAND(malloc_cmd);