/* hardcoded number of CPUs */
#define NR_CPUS 16384
+#ifdef POISON_FREE
+#define poison_free(ptr) \
+ do { \
+ memset(ptr, 0x42, sizeof(*(ptr))); \
+ free(ptr); \
+ } while (0)
+#else
+#define poison_free(ptr) free(ptr)
+#endif
+
+
+
#if defined(_syscall0)
_syscall0(pid_t, gettid)
#elif defined(__NR_gettid)
static unsigned long init_hash_size = DEFAULT_HASH_SIZE;
static unsigned long init_populate;
-static unsigned long rand_pool = DEFAULT_RAND_POOL;
+static int opt_auto_resize;
static int add_only, add_unique;
+static unsigned long init_pool_offset, lookup_pool_offset, write_pool_offset;
+static unsigned long init_pool_size = DEFAULT_RAND_POOL,
+ lookup_pool_size = DEFAULT_RAND_POOL,
+ write_pool_size = DEFAULT_RAND_POOL;
+static int validate_lookup;
+
static inline void loop_sleep(unsigned long l)
{
while(l-- != 0)
sched_setaffinity(0, sizeof(mask), &mask);
}
+static enum {
+ AR_RANDOM = 0,
+ AR_ADD = 1,
+ AR_REMOVE = -1,
+} addremove; /* 1: add, -1 remove, 0: random */
+
+static
+void 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;
+ }
+}
+
/*
* returns 0 if test should end.
*/
for (;;) {
rcu_read_lock();
node = cds_lfht_lookup(test_ht,
- (void *)(unsigned long)(rand_r(&rand_lookup) % rand_pool),
+ (void *)(((unsigned long) rand_r(&rand_lookup) % lookup_pool_size) + lookup_pool_offset),
sizeof(void *));
- if (node == NULL)
+ if (node == NULL) {
+ if (validate_lookup) {
+ printf("[ERROR] Lookup cannot find initial node.\n");
+ exit(-1);
+ }
lookup_fail++;
- else
+ } else {
lookup_ok++;
+ }
debug_yield_read();
if (unlikely(rduration))
loop_sleep(rduration);
cmm_smp_mb();
for (;;) {
- if (add_only || rand_r(&rand_lookup) & 1) {
+ if ((addremove == AR_ADD || add_only)
+ || (addremove == AR_RANDOM && rand_r(&rand_lookup) & 1)) {
node = malloc(sizeof(struct cds_lfht_node));
rcu_read_lock();
cds_lfht_node_init(node,
- (void *)(unsigned long)(rand_r(&rand_lookup) % rand_pool),
+ (void *)(((unsigned long) rand_r(&rand_lookup) % write_pool_size) + write_pool_offset),
sizeof(void *));
if (add_unique)
ret_node = cds_lfht_add_unique(test_ht, node);
/* May delete */
rcu_read_lock();
node = cds_lfht_lookup(test_ht,
- (void *)(unsigned long)(rand_r(&rand_lookup) % rand_pool),
+ (void *)(((unsigned long) rand_r(&rand_lookup) % write_pool_size) + write_pool_offset),
sizeof(void *));
if (node)
ret = cds_lfht_remove(test_ht, node);
return ((void*)2);
}
-static void populate_hash(void)
+static int populate_hash(void)
{
struct cds_lfht_node *node, *ret_node;
if (!init_populate)
- return;
+ return 0;
+
+ if (add_unique && init_populate * 10 > init_pool_size) {
+ printf("WARNING: required to populate %lu nodes (-k), but random "
+"pool is quite small (%lu values) and we are in add_unique (-u) mode. Try with a "
+"larger random pool (-p option). This may take a while...\n", init_populate, init_pool_size);
+ }
while (nr_add < init_populate) {
node = malloc(sizeof(struct cds_lfht_node));
cds_lfht_node_init(node,
- (void *)(unsigned long)(rand_r(&rand_lookup) % rand_pool),
+ (void *)(((unsigned long) rand_r(&rand_lookup) % init_pool_size) + init_pool_offset),
sizeof(void *));
if (add_unique)
ret_node = cds_lfht_add_unique(test_ht, node);
nr_add++;
nr_writes++;
}
+ return 0;
}
void show_usage(int argc, char **argv)
printf(" [-c duration] (reader C.S. duration (in loops))");
printf(" [-v] (verbose output)");
printf(" [-a cpu#] [-a cpu#]... (affinity)");
- printf(" [-p size] (random key value pool size)");
printf(" [-h size] (initial hash table size)");
printf(" [-u] Uniquify add.");
printf(" [-i] Add only (no removal).");
printf(" [-k nr_nodes] Number of nodes to insert initially.");
+ printf(" [-A] Automatically resize hash table.");
+ printf(" [-R offset] Lookup pool offset.");
+ printf(" [-S offset] Write pool offset.");
+ printf(" [-T offset] Init pool offset.");
+ printf(" [-M size] Lookup pool size.");
+ printf(" [-N size] Write pool size.");
+ printf(" [-O size] Init pool size.");
+ printf(" [-V] Validate lookups of init values (use with filled init pool, same lookup range, with different write range).");
printf("\n");
}
tot_add = 0, tot_add_exist = 0, tot_remove = 0;
unsigned long count, removed;
int i, a, ret;
+ struct sigaction act;
+ unsigned int remain;
if (argc < 4) {
show_usage(argc, argv);
case 'v':
verbose_mode = 1;
break;
- case 'p':
- if (argc < i + 2) {
- show_usage(argc, argv);
- return -1;
- }
- rand_pool = atol(argv[++i]);
- break;
case 'h':
if (argc < i + 2) {
show_usage(argc, argv);
case 'k':
init_populate = atol(argv[++i]);
break;
+ case 'A':
+ opt_auto_resize = 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;
+
}
}
return -1;
}
+ memset(&act, 0, sizeof(act));
+ ret = sigemptyset(&act.sa_mask);
+ if (ret == -1) {
+ perror("sigemptyset");
+ return -1;
+ }
+ act.sa_handler = sigusr1_handler;
+ act.sa_flags = SA_RESTART;
+ ret = sigaction(SIGUSR1, &act, NULL);
+ if (ret == -1) {
+ perror("sigaction");
+ return -1;
+ }
+
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("Random pool size : %lu.\n", rand_pool);
printf_verbose("Mode:%s%s.\n",
add_only ? " add only" : " add/remove",
add_unique ? " uniquify" : "");
printf_verbose("Initial hash table size: %lu buckets.\n", init_hash_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("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
count_reader = malloc(sizeof(*count_reader) * nr_readers);
count_writer = malloc(sizeof(*count_writer) * nr_writers);
test_ht = cds_lfht_new(test_hash, test_compare, 0x42UL,
- init_hash_size, call_rcu);
- populate_hash();
+ init_hash_size,
+ opt_auto_resize ? CDS_LFHT_AUTO_RESIZE : 0, NULL);
+ ret = populate_hash();
+ assert(!ret);
err = create_all_cpu_call_rcu_data(0);
assert(!err);
test_go = 1;
- sleep(duration);
+ remain = duration;
+ do {
+ remain = sleep(remain);
+ } while (remain > 0);
test_stop = 1;
if (count || removed)
printf("WARNING: nodes left in the hash table upon destroy: "
"%lu nodes + %lu logically removed.\n", count, removed);
- ret = cds_lfht_destroy(test_ht);
+ ret = cds_lfht_destroy(test_ht, NULL);
if (ret)
printf_verbose("final delete aborted\n");
tot_writes);
printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu "
"nr_writers %3u "
- "wdelay %6lu rand_pool %12llu nr_reads %12llu nr_writes %12llu nr_ops %12llu "
+ "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, rand_pool, tot_reads, tot_writes,
+ nr_writers, wdelay, tot_reads, tot_writes,
tot_reads + tot_writes, tot_add, tot_add_exist, tot_remove,
(long long) tot_add + init_populate - tot_remove - count);
+ free_all_cpu_call_rcu_data();
free(tid_reader);
free(tid_writer);
free(count_reader);
projects / urcu.git / blobdiff