#include <unistd.h>
#include <stdio.h>
#include <assert.h>
-#include <sched.h>
#include <errno.h>
#include <urcu/arch.h>
#include <urcu/tls-compat.h>
+#include "cpuset.h"
#ifdef __linux__
#include <syscall.h>
#include <urcu.h>
#include <urcu/cds.h>
+/*
+ * External synchronization used.
+ */
+enum test_sync {
+ TEST_SYNC_NONE = 0,
+ TEST_SYNC_RCU,
+};
+
+static enum test_sync test_sync;
+
static volatile int test_go, test_stop;
static unsigned long rduration;
static int verbose_mode;
+static int test_pop, test_pop_all;
+
#define printf_verbose(fmt, args...) \
do { \
if (verbose_mode) \
- printf(fmt, args); \
+ printf(fmt, ## args); \
} while (0)
static unsigned int cpu_affinities[NR_CPUS];
pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
-#ifndef HAVE_CPU_SET_T
-typedef unsigned long cpu_set_t;
-# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0)
-# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0)
-#endif
-
static void set_affinity(void)
{
#if HAVE_SCHED_SETAFFINITY
static struct cds_lfs_stack s;
-void *thr_enqueuer(void *_count)
+static void *thr_enqueuer(void *_count)
{
unsigned long long *count = _count;
printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n",
- "enqueuer", pthread_self(), (unsigned long)gettid());
+ "enqueuer", (unsigned long) pthread_self(),
+ (unsigned long) gettid());
set_affinity();
count[1] = URCU_TLS(nr_successful_enqueues);
printf_verbose("enqueuer thread_end, thread id : %lx, tid %lu, "
"enqueues %llu successful_enqueues %llu\n",
- pthread_self(), (unsigned long)gettid(),
+ pthread_self(),
+ (unsigned long) gettid(),
URCU_TLS(nr_enqueues), URCU_TLS(nr_successful_enqueues));
return ((void*)1);
free(node);
}
-void *thr_dequeuer(void *_count)
+static
+void do_test_pop(enum test_sync sync)
+{
+ struct cds_lfs_node *snode;
+
+ if (sync == TEST_SYNC_RCU)
+ rcu_read_lock();
+ snode = __cds_lfs_pop(&s);
+ if (sync == TEST_SYNC_RCU)
+ rcu_read_unlock();
+ if (snode) {
+ struct test *node;
+
+ node = caa_container_of(snode,
+ struct test, list);
+ if (sync == TEST_SYNC_RCU)
+ call_rcu(&node->rcu, free_node_cb);
+ else
+ free(node);
+ URCU_TLS(nr_successful_dequeues)++;
+ }
+ URCU_TLS(nr_dequeues)++;
+}
+
+static
+void do_test_pop_all(enum test_sync sync)
+{
+ struct cds_lfs_node *snode;
+ struct cds_lfs_head *head;
+ struct cds_lfs_node *n;
+
+ head = __cds_lfs_pop_all(&s);
+ cds_lfs_for_each_safe(head, snode, n) {
+ struct test *node;
+
+ node = caa_container_of(snode, struct test, list);
+ if (sync == TEST_SYNC_RCU)
+ call_rcu(&node->rcu, free_node_cb);
+ else
+ free(node);
+ URCU_TLS(nr_successful_dequeues)++;
+ URCU_TLS(nr_dequeues)++;
+ }
+
+}
+
+static void *thr_dequeuer(void *_count)
{
unsigned long long *count = _count;
printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n",
- "dequeuer", pthread_self(), (unsigned long)gettid());
+ "dequeuer", (unsigned long) pthread_self(),
+ (unsigned long) gettid());
set_affinity();
}
cmm_smp_mb();
- for (;;) {
- struct cds_lfs_node *snode;
+ assert(test_pop || test_pop_all);
- rcu_read_lock();
- snode = __cds_lfs_pop(&s);
- rcu_read_unlock();
- if (snode) {
- struct test *node;
-
- node = caa_container_of(snode, struct test, list);
- call_rcu(&node->rcu, free_node_cb);
- URCU_TLS(nr_successful_dequeues)++;
+ for (;;) {
+ unsigned int counter = 0;
+
+ if (test_pop && test_pop_all) {
+ /* both pop and pop all */
+ if (counter & 1)
+ do_test_pop(test_sync);
+ else
+ do_test_pop_all(test_sync);
+ counter++;
+ } else {
+ if (test_pop)
+ do_test_pop(test_sync);
+ else
+ do_test_pop_all(test_sync);
}
- URCU_TLS(nr_dequeues)++;
+
if (caa_unlikely(!test_duration_dequeue()))
break;
if (caa_unlikely(rduration))
printf_verbose("dequeuer thread_end, thread id : %lx, tid %lu, "
"dequeues %llu, successful_dequeues %llu\n",
- pthread_self(), (unsigned long)gettid(),
+ pthread_self(),
+ (unsigned long) gettid(),
URCU_TLS(nr_dequeues), URCU_TLS(nr_successful_dequeues));
count[0] = URCU_TLS(nr_dequeues);
count[1] = URCU_TLS(nr_successful_dequeues);
return ((void*)2);
}
-void test_end(struct cds_lfs_stack *s, unsigned long long *nr_dequeues)
+static void test_end(struct cds_lfs_stack *s, unsigned long long *nr_dequeues)
{
struct cds_lfs_node *snode;
} while (snode);
}
-void show_usage(int argc, char **argv)
+static void show_usage(int argc, char **argv)
{
- printf("Usage : %s nr_dequeuers nr_enqueuers duration (s)", argv[0]);
- printf(" [-d delay] (enqueuer period (in loops))");
- printf(" [-c duration] (dequeuer period (in loops))");
- printf(" [-v] (verbose output)");
- printf(" [-a cpu#] [-a cpu#]... (affinity)");
+ printf("Usage : %s nr_dequeuers nr_enqueuers duration (s) <OPTIONS>\n",
+ argv[0]);
+ printf("OPTIONS:\n");
+ printf(" [-d delay] (enqueuer period (in loops))\n");
+ printf(" [-c duration] (dequeuer period (in loops))\n");
+ printf(" [-v] (verbose output)\n");
+ printf(" [-a cpu#] [-a cpu#]... (affinity)\n");
+ printf(" [-p] (test pop)\n");
+ printf(" [-P] (test pop_all, enabled by default)\n");
+ printf(" [-R] (use RCU external synchronization)\n");
+ printf(" Note: default: no external synchronization used.\n");
printf("\n");
}
case 'v':
verbose_mode = 1;
break;
+ case 'p':
+ test_pop = 1;
+ break;
+ case 'P':
+ test_pop_all = 1;
+ break;
+ case 'R':
+ test_sync = TEST_SYNC_RCU;
+ break;
}
}
+ /* activate pop_all test by default */
+ if (!test_pop && !test_pop_all)
+ test_pop_all = 1;
+
printf_verbose("running test for %lu seconds, %u enqueuers, "
"%u dequeuers.\n",
duration, nr_enqueuers, nr_dequeuers);
+ if (test_pop)
+ printf_verbose("pop test activated.\n");
+ if (test_pop_all)
+ printf_verbose("pop_all test activated.\n");
+ if (test_sync == TEST_SYNC_RCU)
+ printf_verbose("External sync: RCU.\n");
+ else
+ printf_verbose("External sync: none.\n");
printf_verbose("Writer delay : %lu loops.\n", rduration);
printf_verbose("Reader duration : %lu loops.\n", wdelay);
printf_verbose("thread %-6s, thread id : %lx, tid %lu\n",
- "main", pthread_self(), (unsigned long)gettid());
+ "main", (unsigned long) pthread_self(),
+ (unsigned long) gettid());
tid_enqueuer = malloc(sizeof(*tid_enqueuer) * nr_enqueuers);
tid_dequeuer = malloc(sizeof(*tid_dequeuer) * nr_dequeuers);
projects / urcu.git / blobdiff