X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_urcu_hash.c;fp=tests%2Ftest_urcu_hash.c;h=0000000000000000000000000000000000000000;hp=f862adbf92c58d827dfaf0fc1601ebe5a1c4b212;hb=f5ab766ee2c8300cb00ca5878b1cb464f960a66d;hpb=a5bae03d59c22e57263b8610b9fed99738303cf0 diff --git a/tests/test_urcu_hash.c b/tests/test_urcu_hash.c deleted file mode 100644 index f862adb..0000000 --- a/tests/test_urcu_hash.c +++ /dev/null @@ -1,774 +0,0 @@ -/* - * test_urcu_hash.c - * - * Userspace RCU library - test program - * - * Copyright 2009-2012 - Mathieu Desnoyers - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#define _GNU_SOURCE -#include "test_urcu_hash.h" - -enum test_hash { - TEST_HASH_RW, - TEST_HASH_UNIQUE, -}; - -struct test_hash_cb { - void (*sigusr1)(int signo); - void (*sigusr2)(int signo); - void *(*thr_reader)(void *_count); - void *(*thr_writer)(void *_count); - int (*populate_hash)(void); -}; - -static -struct test_hash_cb test_hash_cb[] = { - [TEST_HASH_RW] = { - test_hash_rw_sigusr1_handler, - test_hash_rw_sigusr2_handler, - test_hash_rw_thr_reader, - test_hash_rw_thr_writer, - test_hash_rw_populate_hash, - }, - [TEST_HASH_UNIQUE] = { - test_hash_unique_sigusr1_handler, - test_hash_unique_sigusr2_handler, - test_hash_unique_thr_reader, - test_hash_unique_thr_writer, - test_hash_unique_populate_hash, - }, - -}; - -static enum test_hash test_choice = TEST_HASH_RW; - -void (*get_sigusr1_cb(void))(int) -{ - return test_hash_cb[test_choice].sigusr1; -} - -void (*get_sigusr2_cb(void))(int) -{ - return test_hash_cb[test_choice].sigusr2; -} - -void *(*get_thr_reader_cb(void))(void *) -{ - return test_hash_cb[test_choice].thr_reader; -} - -void *(*get_thr_writer_cb(void))(void *) -{ - return test_hash_cb[test_choice].thr_writer; -} - -int (*get_populate_hash_cb(void))(void) -{ - return test_hash_cb[test_choice].populate_hash; -} - -DEFINE_URCU_TLS(unsigned int, rand_lookup); -DEFINE_URCU_TLS(unsigned long, nr_add); -DEFINE_URCU_TLS(unsigned long, nr_addexist); -DEFINE_URCU_TLS(unsigned long, nr_del); -DEFINE_URCU_TLS(unsigned long, nr_delnoent); -DEFINE_URCU_TLS(unsigned long, lookup_fail); -DEFINE_URCU_TLS(unsigned long, lookup_ok); - -struct cds_lfht *test_ht; - -volatile int test_go, test_stop; - -unsigned long wdelay; - -unsigned long duration; - -/* read-side C.S. duration, in loops */ -unsigned long rduration; - -unsigned long init_hash_size = DEFAULT_HASH_SIZE; -unsigned long min_hash_alloc_size = DEFAULT_MIN_ALLOC_SIZE; -unsigned long max_hash_buckets_size = (1UL << 20); -unsigned long init_populate; -int opt_auto_resize; -int add_only, add_unique, add_replace; -const struct cds_lfht_mm_type *memory_backend; - -unsigned long init_pool_offset, lookup_pool_offset, write_pool_offset; -unsigned long init_pool_size = DEFAULT_RAND_POOL, - lookup_pool_size = DEFAULT_RAND_POOL, - write_pool_size = DEFAULT_RAND_POOL; -int validate_lookup; -unsigned long nr_hash_chains; /* 0: normal table, other: number of hash chains */ - -int count_pipe[2]; - -int verbose_mode; - -unsigned int cpu_affinities[NR_CPUS]; -unsigned int next_aff = 0; -int use_affinity = 0; - -pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER; - -DEFINE_URCU_TLS(unsigned long long, nr_writes); -DEFINE_URCU_TLS(unsigned long long, nr_reads); - -unsigned int nr_readers; -unsigned int nr_writers; - -static pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER; - -void set_affinity(void) -{ -#if HAVE_SCHED_SETAFFINITY - cpu_set_t mask; - int cpu, ret; -#endif /* HAVE_SCHED_SETAFFINITY */ - - if (!use_affinity) - return; - -#if HAVE_SCHED_SETAFFINITY - ret = pthread_mutex_lock(&affinity_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } - cpu = cpu_affinities[next_aff++]; - ret = pthread_mutex_unlock(&affinity_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } - CPU_ZERO(&mask); - CPU_SET(cpu, &mask); -#if SCHED_SETAFFINITY_ARGS == 2 - sched_setaffinity(0, &mask); -#else - sched_setaffinity(0, sizeof(mask), &mask); -#endif -#endif /* HAVE_SCHED_SETAFFINITY */ -} - -void rcu_copy_mutex_lock(void) -{ - int ret; - ret = pthread_mutex_lock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } -} - -void rcu_copy_mutex_unlock(void) -{ - int ret; - - ret = pthread_mutex_unlock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } -} - -unsigned long test_compare(const void *key1, size_t key1_len, - const void *key2, size_t key2_len) -{ - if (caa_unlikely(key1_len != key2_len)) - return -1; - assert(key1_len == sizeof(unsigned long)); - if (key1 == key2) - return 0; - else - return 1; -} - -void *thr_count(void *arg) -{ - printf_verbose("thread_begin %s, tid %lu\n", - "counter", urcu_get_thread_id()); - - rcu_register_thread(); - - for (;;) { - unsigned long count; - long approx_before, approx_after; - ssize_t len; - char buf[1]; - - rcu_thread_offline(); - len = read(count_pipe[0], buf, 1); - rcu_thread_online(); - if (caa_unlikely(!test_duration_read())) - break; - if (len != 1) - continue; - /* Accounting */ - printf("Counting nodes... "); - fflush(stdout); - rcu_read_lock(); - cds_lfht_count_nodes(test_ht, &approx_before, &count, - &approx_after); - rcu_read_unlock(); - printf("done.\n"); - printf("Approximation before node accounting: %ld nodes.\n", - approx_before); - printf("Accounting of nodes in the hash table: " - "%lu nodes.\n", - count); - printf("Approximation after node accounting: %ld nodes.\n", - approx_after); - } - rcu_unregister_thread(); - return NULL; -} - -void free_node_cb(struct rcu_head *head) -{ - struct lfht_test_node *node = - caa_container_of(head, struct lfht_test_node, head); - free(node); -} - -static -void test_delete_all_nodes(struct cds_lfht *ht) -{ - struct cds_lfht_iter iter; - struct lfht_test_node *node; - unsigned long count = 0; - - cds_lfht_for_each_entry(ht, &iter, node, node) { - int ret; - - ret = cds_lfht_del(test_ht, cds_lfht_iter_get_node(&iter)); - assert(!ret); - call_rcu(&node->head, free_node_cb); - count++; - } - printf("deleted %lu nodes.\n", count); -} - -void show_usage(int argc, char **argv) -{ - printf("Usage : %s nr_readers nr_writers duration (s) \n", - argv[0]); - printf("OPTIONS:\n"); -#ifdef DEBUG_YIELD - printf(" [-r] [-w] (yield reader and/or writer)\n"); -#endif - printf(" [-d delay] (writer period (us))\n"); - printf(" [-c duration] (reader C.S. duration (in loops))\n"); - printf(" [-v] (verbose output)\n"); - printf(" [-a cpu#] [-a cpu#]... (affinity)\n"); - printf(" [-h size] (initial number of buckets)\n"); - printf(" [-m size] (minimum number of allocated buckets)\n"); - printf(" [-n size] (maximum number of buckets)\n"); -printf(" [not -u nor -s] Add entries (supports redundant keys).\n"); - printf(" [-u] Uniquify add (no redundant keys).\n"); - printf(" [-s] Replace (swap) entries.\n"); - printf(" [-i] Add only (no removal).\n"); - printf(" [-k nr_nodes] Number of nodes to insert initially.\n"); - printf(" [-A] Automatically resize hash table.\n"); - printf(" [-B order|chunk|mmap] Specify the memory backend.\n"); - printf(" [-R offset] Lookup pool offset.\n"); - printf(" [-S offset] Write pool offset.\n"); - printf(" [-T offset] Init pool offset.\n"); - printf(" [-M size] Lookup pool size.\n"); - printf(" [-N size] Write pool size.\n"); - printf(" [-O size] Init pool size.\n"); - printf(" [-V] Validate lookups of init values.\n"); - printf(" (use with filled init pool, same lookup range,\n"); - printf(" with different write range)\n"); - printf(" [-U] Uniqueness test.\n"); - printf(" [-C] Number of hash chains.\n"); - printf("\n"); -} - -int main(int argc, char **argv) -{ - pthread_t *tid_reader, *tid_writer; - pthread_t tid_count; - void *tret; - unsigned long long *count_reader; - struct wr_count *count_writer; - unsigned long long tot_reads = 0, tot_writes = 0, - tot_add = 0, tot_add_exist = 0, tot_remove = 0; - unsigned long count; - long approx_before, approx_after; - int i, a, ret, err, mainret = 0; - struct sigaction act; - unsigned int remain; - unsigned int nr_readers_created = 0, nr_writers_created = 0; - long long nr_leaked; - - if (argc < 4) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - - err = sscanf(argv[1], "%u", &nr_readers); - if (err != 1) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - - err = sscanf(argv[2], "%u", &nr_writers); - if (err != 1) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - - err = sscanf(argv[3], "%lu", &duration); - if (err != 1) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - - for (i = 4; i < argc; i++) { - if (argv[i][0] != '-') - continue; - switch (argv[i][1]) { -#ifdef DEBUG_YIELD - case 'r': - yield_active |= YIELD_READ; - break; - case 'w': - yield_active |= YIELD_WRITE; - break; -#endif - case 'a': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - a = atoi(argv[++i]); - cpu_affinities[next_aff++] = a; - use_affinity = 1; - printf_verbose("Adding CPU %d affinity\n", a); - break; - case 'c': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - rduration = atol(argv[++i]); - break; - case 'd': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - wdelay = atol(argv[++i]); - break; - case 'v': - verbose_mode = 1; - break; - case 'h': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - init_hash_size = atol(argv[++i]); - break; - case 'm': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - min_hash_alloc_size = atol(argv[++i]); - break; - case 'n': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - max_hash_buckets_size = atol(argv[++i]); - break; - case 'u': - if (add_replace) { - printf("Please specify at most one of -s or -u.\n"); - exit(-1); - } - add_unique = 1; - break; - case 's': - if (add_unique) { - printf("Please specify at most one of -s or -u.\n"); - exit(-1); - } - add_replace = 1; - break; - case 'i': - add_only = 1; - break; - case 'k': - init_populate = atol(argv[++i]); - break; - case 'A': - opt_auto_resize = 1; - break; - case 'B': - if (argc < i + 2) { - show_usage(argc, argv); - mainret = 1; - goto end; - } - i++; - if (!strcmp("order", argv[i])) - memory_backend = &cds_lfht_mm_order; - else if (!strcmp("chunk", argv[i])) - memory_backend = &cds_lfht_mm_chunk; - else if (!strcmp("mmap", argv[i])) - memory_backend = &cds_lfht_mm_mmap; - else { - printf("Please specify memory backend with order|chunk|mmap.\n"); - mainret = 1; - goto end; - } - break; - case 'R': - lookup_pool_offset = atol(argv[++i]); - break; - case 'S': - write_pool_offset = atol(argv[++i]); - break; - case 'T': - init_pool_offset = atol(argv[++i]); - break; - case 'M': - lookup_pool_size = atol(argv[++i]); - break; - case 'N': - write_pool_size = atol(argv[++i]); - break; - case 'O': - init_pool_size = atol(argv[++i]); - break; - case 'V': - validate_lookup = 1; - break; - case 'U': - test_choice = TEST_HASH_UNIQUE; - break; - case 'C': - nr_hash_chains = atol(argv[++i]); - break; - } - } - - /* Check if hash size is power of 2 */ - if (init_hash_size && init_hash_size & (init_hash_size - 1)) { - printf("Error: Initial number of buckets (%lu) is not a power of 2.\n", - init_hash_size); - mainret = 1; - goto end; - } - - if (min_hash_alloc_size && min_hash_alloc_size & (min_hash_alloc_size - 1)) { - printf("Error: Minimum number of allocated buckets (%lu) is not a power of 2.\n", - min_hash_alloc_size); - mainret = 1; - goto end; - } - - if (max_hash_buckets_size && max_hash_buckets_size & (max_hash_buckets_size - 1)) { - printf("Error: Maximum number of buckets (%lu) is not a power of 2.\n", - max_hash_buckets_size); - mainret = 1; - goto end; - } - - memset(&act, 0, sizeof(act)); - ret = sigemptyset(&act.sa_mask); - if (ret == -1) { - perror("sigemptyset"); - mainret = 1; - goto end; - } - act.sa_handler = get_sigusr1_cb(); - act.sa_flags = SA_RESTART; - ret = sigaction(SIGUSR1, &act, NULL); - if (ret == -1) { - perror("sigaction"); - mainret = 1; - goto end; - } - - act.sa_handler = get_sigusr2_cb(); - act.sa_flags = SA_RESTART; - ret = sigaction(SIGUSR2, &act, NULL); - if (ret == -1) { - perror("sigaction"); - mainret = 1; - goto end; - } - - printf_verbose("running test for %lu seconds, %u readers, %u writers.\n", - duration, nr_readers, nr_writers); - printf_verbose("Writer delay : %lu loops.\n", wdelay); - printf_verbose("Reader duration : %lu loops.\n", rduration); - printf_verbose("Mode:%s%s.\n", - add_only ? " add only" : " add/remove", - add_unique ? " uniquify" : ( add_replace ? " replace" : " insert")); - printf_verbose("Initial number of buckets: %lu buckets.\n", init_hash_size); - printf_verbose("Minimum number of allocated buckets: %lu buckets.\n", min_hash_alloc_size); - printf_verbose("Maximum number of buckets: %lu buckets.\n", max_hash_buckets_size); - printf_verbose("Init pool size offset %lu size %lu.\n", - init_pool_offset, init_pool_size); - printf_verbose("Lookup pool size offset %lu size %lu.\n", - lookup_pool_offset, lookup_pool_size); - printf_verbose("Update pool size offset %lu size %lu.\n", - write_pool_offset, write_pool_size); - printf_verbose("Number of hash chains: %lu.\n", - nr_hash_chains); - printf_verbose("thread %-6s, tid %lu\n", - "main", urcu_get_thread_id()); - - tid_reader = calloc(nr_readers, sizeof(*tid_reader)); - if (!tid_reader) { - mainret = 1; - goto end; - } - tid_writer = calloc(nr_writers, sizeof(*tid_writer)); - if (!tid_writer) { - mainret = 1; - goto end_free_tid_reader; - } - count_reader = calloc(nr_readers, sizeof(*count_reader)); - if (!count_reader) { - mainret = 1; - goto end_free_tid_writer; - } - count_writer = calloc(nr_writers, sizeof(*count_writer)); - if (!count_writer) { - mainret = 1; - goto end_free_count_reader; - } - - err = create_all_cpu_call_rcu_data(0); - if (err) { - printf("Per-CPU call_rcu() worker threads unavailable. Using default global worker thread.\n"); - } - - if (memory_backend) { - test_ht = _cds_lfht_new(init_hash_size, min_hash_alloc_size, - max_hash_buckets_size, - (opt_auto_resize ? CDS_LFHT_AUTO_RESIZE : 0) | - CDS_LFHT_ACCOUNTING, memory_backend, - &rcu_flavor, NULL); - } else { - test_ht = cds_lfht_new(init_hash_size, min_hash_alloc_size, - max_hash_buckets_size, - (opt_auto_resize ? CDS_LFHT_AUTO_RESIZE : 0) | - CDS_LFHT_ACCOUNTING, NULL); - } - if (!test_ht) { - printf("Error allocating hash table.\n"); - mainret = 1; - goto end_free_call_rcu_data; - } - - /* - * Hash Population needs to be seen as a RCU reader - * thread from the point of view of resize. - */ - rcu_register_thread(); - ret = (get_populate_hash_cb())(); - assert(!ret); - - rcu_thread_offline(); - - next_aff = 0; - - ret = pipe(count_pipe); - if (ret == -1) { - perror("pipe"); - mainret = 1; - goto end_online; - } - - /* spawn counter thread */ - err = pthread_create(&tid_count, NULL, thr_count, - NULL); - if (err != 0) { - errno = err; - mainret = 1; - perror("pthread_create"); - goto end_close_pipe; - } - - for (i = 0; i < nr_readers; i++) { - err = pthread_create(&tid_reader[i], - NULL, get_thr_reader_cb(), - &count_reader[i]); - if (err != 0) { - errno = err; - mainret = 1; - perror("pthread_create"); - goto end_pthread_join; - } - nr_readers_created++; - } - for (i = 0; i < nr_writers; i++) { - err = pthread_create(&tid_writer[i], - NULL, get_thr_writer_cb(), - &count_writer[i]); - if (err != 0) { - errno = err; - mainret = 1; - perror("pthread_create"); - goto end_pthread_join; - } - nr_writers_created++; - } - - cmm_smp_mb(); - - test_go = 1; - - remain = duration; - do { - remain = sleep(remain); - } while (remain > 0); - - test_stop = 1; - -end_pthread_join: - for (i = 0; i < nr_readers_created; i++) { - err = pthread_join(tid_reader[i], &tret); - if (err != 0) { - errno = err; - mainret = 1; - perror("pthread_join"); - } - tot_reads += count_reader[i]; - } - for (i = 0; i < nr_writers_created; i++) { - err = pthread_join(tid_writer[i], &tret); - if (err != 0) { - errno = err; - mainret = 1; - perror("pthread_join"); - } - tot_writes += count_writer[i].update_ops; - tot_add += count_writer[i].add; - tot_add_exist += count_writer[i].add_exist; - tot_remove += count_writer[i].remove; - } - - /* teardown counter thread */ - act.sa_handler = SIG_IGN; - act.sa_flags = SA_RESTART; - ret = sigaction(SIGUSR2, &act, NULL); - if (ret == -1) { - mainret = 1; - perror("sigaction"); - } - { - char msg[1] = { 0x42 }; - ssize_t ret; - - do { - ret = write(count_pipe[1], msg, 1); /* wakeup thread */ - } while (ret == -1L && errno == EINTR); - } - err = pthread_join(tid_count, &tret); - if (err != 0) { - errno = err; - mainret = 1; - perror("pthread_join"); - } - -end_close_pipe: - for (i = 0; i < 2; i++) { - err = close(count_pipe[i]); - if (err) { - mainret = 1; - perror("close pipe"); - } - } - fflush(stdout); -end_online: - rcu_thread_online(); - rcu_read_lock(); - printf("Counting nodes... "); - cds_lfht_count_nodes(test_ht, &approx_before, &count, &approx_after); - printf("done.\n"); - test_delete_all_nodes(test_ht); - rcu_read_unlock(); - rcu_thread_offline(); - if (count) { - printf("Approximation before node accounting: %ld nodes.\n", - approx_before); - printf("Nodes deleted from hash table before destroy: " - "%lu nodes.\n", - count); - printf("Approximation after node accounting: %ld nodes.\n", - approx_after); - } - - ret = cds_lfht_destroy(test_ht, NULL); - if (ret) { - printf_verbose("final delete aborted\n"); - mainret = 1; - } else { - printf_verbose("final delete success\n"); - } - printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads, - tot_writes); - nr_leaked = (long long) tot_add + init_populate - tot_remove - count; - printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu " - "nr_writers %3u " - "wdelay %6lu nr_reads %12llu nr_writes %12llu nr_ops %12llu " - "nr_add %12llu nr_add_fail %12llu nr_remove %12llu nr_leaked %12lld\n", - argv[0], duration, nr_readers, rduration, - nr_writers, wdelay, tot_reads, tot_writes, - tot_reads + tot_writes, tot_add, tot_add_exist, tot_remove, - nr_leaked); - if (nr_leaked != 0) { - mainret = 1; - printf("WARNING: %lld nodes were leaked!\n", nr_leaked); - } - - rcu_unregister_thread(); -end_free_call_rcu_data: - free_all_cpu_call_rcu_data(); - free(count_writer); -end_free_count_reader: - free(count_reader); -end_free_tid_writer: - free(tid_writer); -end_free_tid_reader: - free(tid_reader); -end: - if (!mainret) - exit(EXIT_SUCCESS); - else - exit(EXIT_FAILURE); -}