+++ /dev/null
-/*
- * test_urcu_ja_range.c
- *
- * Userspace RCU library - test program
- *
- * Copyright 2009-2012 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- *
- * 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_ja_range.h"
-#include <inttypes.h>
-#include <stdint.h>
-
-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_ja *test_ja;
-
-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_populate;
-int add_only;
-
-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;
-int sanity_test;
-unsigned int key_bits = 32;
-
-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 unsigned int add_ratio = 50, range_max_len = 0;
-static uint64_t key_mul = 1ULL;
-
-static int add_unique, add_replace;
-
-static pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-static int leak_detection;
-static unsigned long test_nodes_allocated, test_nodes_freed;
-
-void set_affinity(void)
-{
- cpu_set_t mask;
- int cpu;
- int ret;
-
- 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);
- }
-}
-
-void show_usage(int argc, char **argv)
-{
- printf("Usage : %s nr_readers nr_writers duration (s)\n", argv[0]);
-#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(" [-u] Add unique keys.\n");
- printf(" [-s] Replace existing keys.\n");
-printf(" [not -u nor -s] Add entries (supports redundant keys).\n");
- printf(" [-r ratio] Add ratio (in %% of add+removal).\n");
- printf(" [-k] Populate init nodes.\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 (use with filled init pool, same lookup range, with different write range).\n");
- printf(" [-t] Do sanity test.\n");
- printf(" [-B] Key bits for multithread test (default: 32).\n");
- printf(" [-m factor] Key multiplication factor.\n");
- printf(" [-l] Memory leak detection.\n");
- printf(" [-L len] Range max len.\n");
- printf("\n\n");
-}
-
-enum urcu_ja_addremove {
- AR_RANDOM = 0,
- AR_ADD = 1,
- AR_REMOVE = -1,
-}; /* 1: add, -1 remove, 0: random */
-
-static enum urcu_ja_addremove addremove; /* 1: add, -1 remove, 0: random */
-
-static
-void test_ja_rw_sigusr1_handler(int signo)
-{
- switch (addremove) {
- case AR_ADD:
- printf("Add/Remove: random.\n");
- addremove = AR_RANDOM;
- break;
- case AR_RANDOM:
- printf("Add/Remove: remove only.\n");
- addremove = AR_REMOVE;
- break;
- case AR_REMOVE:
- printf("Add/Remove: add only.\n");
- addremove = AR_ADD;
- break;
- }
-}
-
-static
-void *test_ja_rw_thr_reader(void *_count)
-{
- unsigned long long *count = _count;
- struct cds_ja_range *range;
- uint64_t key;
-
- printf_verbose("thread_begin %s, tid %lu\n",
- "reader", urcu_get_thread_id());
-
- URCU_TLS(rand_lookup) = (unsigned int) urcu_get_thread_id() ^ time(NULL);
-
- set_affinity();
-
- rcu_register_thread();
-
- while (!test_go)
- {
- }
- cmm_smp_mb();
-
- for (;;) {
- rcu_read_lock();
-
- key = (uint64_t) rand_r(&URCU_TLS(rand_lookup));
- key += (uint64_t) rand_r(&URCU_TLS(rand_lookup)) << 32ULL;
- key = (key % lookup_pool_size) + lookup_pool_offset;
- key *= key_mul;
-
- range = cds_ja_range_lookup(test_ja, key);
- if (!range) {
- if (validate_lookup) {
- printf("[ERROR] Lookup cannot find initial node.\n");
- exit(-1);
- }
- URCU_TLS(lookup_fail)++;
- } else {
- range = cds_ja_range_lock(range);
- if (!range) {
- if (validate_lookup) {
- printf("[ERROR] Lookup cannot find initial node.\n");
- exit(-1);
- }
- } else {
- URCU_TLS(lookup_ok)++;
- cds_ja_range_unlock(range);
- }
- }
- rcu_debug_yield_read();
- if (caa_unlikely(rduration))
- loop_sleep(rduration);
- rcu_read_unlock();
- URCU_TLS(nr_reads)++;
- if (caa_unlikely(!test_duration_read()))
- break;
- if (caa_unlikely((URCU_TLS(nr_reads) & ((1 << 10) - 1)) == 0))
- rcu_quiescent_state();
- }
-
- rcu_unregister_thread();
-
- *count = URCU_TLS(nr_reads);
- printf_verbose("thread_end %s, tid %lu\n",
- "reader", urcu_get_thread_id());
- printf_verbose("read tid : %lu, lookupfail %lu, lookupok %lu\n",
- urcu_get_thread_id(), URCU_TLS(lookup_fail),
- URCU_TLS(lookup_ok));
- return ((void*)1);
-}
-
-static
-int is_add(void)
-{
- return ((unsigned int) rand_r(&URCU_TLS(rand_lookup)) % 100) < add_ratio;
-}
-
-static
-void *test_ja_rw_thr_writer(void *_count)
-{
- struct wr_count *count = _count;
- int ret;
-
- printf_verbose("thread_begin %s, tid %lu\n",
- "writer", urcu_get_thread_id());
-
- URCU_TLS(rand_lookup) = (unsigned int) urcu_get_thread_id() ^ time(NULL);
-
- set_affinity();
-
- rcu_register_thread();
-
- while (!test_go)
- {
- }
- cmm_smp_mb();
-
- for (;;) {
- if ((addremove == AR_ADD)
- || (addremove == AR_RANDOM && is_add())) {
- struct cds_ja_range *range;
- uint64_t start, end, tmp;
-
- start = (uint64_t) rand_r(&URCU_TLS(rand_lookup));
- start += (uint64_t) rand_r(&URCU_TLS(rand_lookup)) << 32ULL;
- start = (start % write_pool_size) + write_pool_offset;
-
- end = (uint64_t) rand_r(&URCU_TLS(rand_lookup));
- end += (uint64_t) rand_r(&URCU_TLS(rand_lookup)) << 32ULL;
- end = (end % write_pool_size) + write_pool_offset;
-
- start *= key_mul;
- end *= key_mul;
- if (start > end) {
- tmp = start;
- start = end;
- end = tmp;
- }
- if (end - start > range_max_len) {
- end = start + range_max_len;
- }
- rcu_read_lock();
- ret = cds_ja_range_add(test_ja, start, end, NULL);
- if (ret) {
- if (ret == -EEXIST) {
- URCU_TLS(nr_addexist)++;
- } else {
- assert(0);
- }
- } else {
- URCU_TLS(nr_add)++;
- }
- rcu_read_unlock();
- } else {
- struct cds_ja_range *range;
- uint64_t key;
-
- /* May delete */
- key = (uint64_t) rand_r(&URCU_TLS(rand_lookup));
- key += (uint64_t) rand_r(&URCU_TLS(rand_lookup)) << 32ULL;
- key = (key % write_pool_size) + write_pool_offset;
- key *= key_mul;
-
- rcu_read_lock();
-
- range = cds_ja_range_lookup(test_ja, key);
- if (range) {
- ret = cds_ja_range_del(test_ja, range);
- if (!ret) {
- URCU_TLS(nr_del)++;
- } else {
- URCU_TLS(nr_delnoent)++;
- }
- } else {
- URCU_TLS(nr_delnoent)++;
- }
- rcu_read_unlock();
- }
-
- URCU_TLS(nr_writes)++;
- if (caa_unlikely(!test_duration_write()))
- break;
- if (caa_unlikely(wdelay))
- loop_sleep(wdelay);
- if (caa_unlikely((URCU_TLS(nr_writes) & ((1 << 10) - 1)) == 0))
- rcu_quiescent_state();
- }
-
- rcu_unregister_thread();
-
- printf_verbose("thread_end %s, tid %lu\n",
- "writer", urcu_get_thread_id());
- printf_verbose("info tid %lu: nr_add %lu, nr_addexist %lu, nr_del %lu, "
- "nr_delnoent %lu\n", urcu_get_thread_id(),
- URCU_TLS(nr_add),
- URCU_TLS(nr_addexist), URCU_TLS(nr_del),
- URCU_TLS(nr_delnoent));
- count->update_ops = URCU_TLS(nr_writes);
- count->add = URCU_TLS(nr_add);
- count->add_exist = URCU_TLS(nr_addexist);
- count->remove = URCU_TLS(nr_del);
- return ((void*)2);
-}
-
-static
-int do_mt_populate_ja(void)
-{
- uint64_t iter;
- int ret;
-
- if (!init_populate)
- return 0;
-
- printf("Starting rw test\n");
-
- for (iter = init_pool_offset; iter < init_pool_offset + init_pool_size; iter++) {
- struct cds_ja_range *range;
- uint64_t key;
-
- /* note: only inserting ulong keys */
- key = (unsigned long) iter;
- key *= key_mul;
- rcu_read_lock();
- ret = cds_ja_range_add(test_ja, key, key, NULL);
- URCU_TLS(nr_add)++;
- URCU_TLS(nr_writes)++;
- rcu_read_unlock();
- /* Hash table resize only occurs in call_rcu thread */
- if (!(iter % 100))
- rcu_quiescent_state();
- if (ret) {
- fprintf(stderr, "Error (%d) adding range %" PRIu64 "\n",
- ret, key);
- assert(0);
- }
- }
- return 0;
-}
-
-static
-int do_mt_test(void)
-{
- pthread_t *tid_reader, *tid_writer;
- void *tret;
- int ret, i, err;
- 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 int remain;
-
- tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
- tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
- count_reader = malloc(sizeof(*count_reader) * nr_readers);
- count_writer = malloc(sizeof(*count_writer) * nr_writers);
-
- printf("Allocating %u-bit Judy Array for ranges\n",
- key_bits);
- test_ja = cds_ja_range_new(key_bits);
- if (!test_ja) {
- printf("Error allocating judy array.\n");
- ret = -1;
- goto end;
- }
-
- do_mt_populate_ja();
-
- next_aff = 0;
-
- for (i = 0; i < nr_readers; i++) {
- err = pthread_create(&tid_reader[i],
- NULL, test_ja_rw_thr_reader,
- &count_reader[i]);
- if (err != 0)
- exit(1);
- }
- for (i = 0; i < nr_writers; i++) {
- err = pthread_create(&tid_writer[i],
- NULL, test_ja_rw_thr_writer,
- &count_writer[i]);
- if (err != 0)
- exit(1);
- }
-
- cmm_smp_mb();
-
- test_go = 1;
-
- rcu_thread_offline_qsbr();
-
- remain = duration;
- do {
- remain = sleep(remain);
- } while (remain > 0);
-
- test_stop = 1;
-
- for (i = 0; i < nr_readers; i++) {
- err = pthread_join(tid_reader[i], &tret);
- if (err != 0)
- exit(1);
- tot_reads += count_reader[i];
- }
- for (i = 0; i < nr_writers; i++) {
- err = pthread_join(tid_writer[i], &tret);
- if (err != 0)
- exit(1);
- 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;
- }
- rcu_thread_online_qsbr();
-
- ret = cds_ja_range_validate(test_ja);
- assert(!ret);
-
- ret = cds_ja_range_destroy(test_ja, NULL);
- if (ret) {
- fprintf(stderr, "Error destroying judy array\n");
- goto end;
- }
-
- free(tid_reader);
- free(tid_writer);
- free(count_reader);
- free(count_writer);
- ret = 0;
-end:
- return ret;
-}
-
-int main(int argc, char **argv)
-{
- int i, j, a, ret, err;
- uint64_t key;
- struct sigaction act;
-
- if (argc < 4) {
- show_usage(argc, argv);
- return -1;
- }
-
- err = sscanf(argv[1], "%u", &nr_readers);
- if (err != 1) {
- show_usage(argc, argv);
- return -1;
- }
-
- err = sscanf(argv[2], "%u", &nr_writers);
- if (err != 1) {
- show_usage(argc, argv);
- return -1;
- }
-
- err = sscanf(argv[3], "%lu", &duration);
- if (err != 1) {
- show_usage(argc, argv);
- return -1;
- }
-
- 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);
- return -1;
- }
- 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);
- return -1;
- }
- rduration = atol(argv[++i]);
- break;
- case 'd':
- if (argc < i + 2) {
- show_usage(argc, argv);
- return -1;
- }
- wdelay = atol(argv[++i]);
- break;
- case 'v':
- verbose_mode = 1;
- break;
- case 'r':
- add_ratio = atoi(argv[++i]);
- break;
- case 'k':
- init_populate = 1;
- 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 't':
- sanity_test = 1;
- break;
- case 'B':
- key_bits = atol(argv[++i]);
- break;
- case 'm':
- key_mul = atoll(argv[++i]);
- break;
- case 'u':
- add_unique = 1;
- break;
- case 's':
- add_replace = 1;
- break;
- case 'l':
- leak_detection = 1;
- break;
- case 'L':
- range_max_len = atol(argv[++i]);
- break;
- }
- }
-
- 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("Add ratio: %u%%.\n", add_ratio);
- printf_verbose("Mode:%s%s.\n",
- " add/remove",
- add_unique ? " uniquify" : ( add_replace ? " replace" : " insert"));
- printf_verbose("Key multiplication factor: %" PRIu64 ".\n", key_mul);
- 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("Range max len: %lu.\n",
- range_max_len);
- if (validate_lookup)
- printf_verbose("Validating lookups.\n");
- if (leak_detection)
- printf_verbose("Memory leak dection activated.\n");
- printf_verbose("thread %-6s, tid %lu\n",
- "main", urcu_get_thread_id());
-
- memset(&act, 0, sizeof(act));
- ret = sigemptyset(&act.sa_mask);
- if (ret == -1) {
- perror("sigemptyset");
- return -1;
- }
- act.sa_handler = test_ja_rw_sigusr1_handler;
- act.sa_flags = SA_RESTART;
- ret = sigaction(SIGUSR1, &act, NULL);
- if (ret == -1) {
- perror("sigaction");
- return -1;
- }
-
- err = create_all_cpu_call_rcu_data(0);
- if (err) {
- printf("Per-CPU call_rcu() worker threads unavailable. Using default global worker thread.\n");
- }
-
- rcu_register_thread();
-
- ret = do_mt_test();
-
- /* Wait for in-flight call_rcu free to complete for leak detection */
- rcu_barrier();
-
- rcu_unregister_thread();
- free_all_cpu_call_rcu_data();
-
- if (ret) {
- printf("Test ended with error: %d\n", ret);
- }
- return ret;
-}
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