[lttng-dev] [PATCH v2 08/12] benchmark: Use uatomic for accessing global states
Olivier Dion
odion at efficios.com
Wed Jun 7 14:53:55 EDT 2023
Global states accesses were protected via memory barriers. Use the
uatomic API with the CMM memory model so that TSAN can understand the
ordering imposed by the synchronization flags.
Change-Id: I1bf5702c5ac470f308c478effe39e424a3158060
Co-authored-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
Signed-off-by: Olivier Dion <odion at efficios.com>
---
tests/benchmark/Makefile.am | 91 +++++++++++++------------
tests/benchmark/common-states.c | 1 +
tests/benchmark/common-states.h | 51 ++++++++++++++
tests/benchmark/test_mutex.c | 32 +--------
tests/benchmark/test_perthreadlock.c | 32 +--------
tests/benchmark/test_rwlock.c | 32 +--------
tests/benchmark/test_urcu.c | 33 +--------
tests/benchmark/test_urcu_assign.c | 33 +--------
tests/benchmark/test_urcu_bp.c | 33 +--------
tests/benchmark/test_urcu_defer.c | 33 +--------
tests/benchmark/test_urcu_gc.c | 34 ++-------
tests/benchmark/test_urcu_hash.c | 6 +-
tests/benchmark/test_urcu_hash.h | 15 ----
tests/benchmark/test_urcu_hash_rw.c | 10 +--
tests/benchmark/test_urcu_hash_unique.c | 10 +--
tests/benchmark/test_urcu_lfq.c | 20 ++----
tests/benchmark/test_urcu_lfs.c | 20 ++----
tests/benchmark/test_urcu_lfs_rcu.c | 20 ++----
tests/benchmark/test_urcu_qsbr.c | 33 +--------
tests/benchmark/test_urcu_qsbr_gc.c | 34 ++-------
tests/benchmark/test_urcu_wfcq.c | 22 +++---
tests/benchmark/test_urcu_wfq.c | 20 ++----
tests/benchmark/test_urcu_wfs.c | 22 +++---
23 files changed, 177 insertions(+), 460 deletions(-)
create mode 100644 tests/benchmark/common-states.c
create mode 100644 tests/benchmark/common-states.h
diff --git a/tests/benchmark/Makefile.am b/tests/benchmark/Makefile.am
index c53e025..a7f91c2 100644
--- a/tests/benchmark/Makefile.am
+++ b/tests/benchmark/Makefile.am
@@ -1,4 +1,5 @@
AM_CPPFLAGS += -I$(top_srcdir)/src -I$(top_srcdir)/tests/common
+AM_CPPFLAGS += -include $(top_srcdir)/tests/benchmark/common-states.h
TEST_EXTENSIONS = .tap
TAP_LOG_DRIVER_FLAGS = --merge --comments
@@ -7,6 +8,8 @@ TAP_LOG_DRIVER = env AM_TAP_AWK='$(AWK)' \
URCU_TESTS_BUILDDIR='$(abs_top_builddir)/tests' \
$(SHELL) $(top_srcdir)/tests/utils/tap-driver.sh
+noinst_HEADERS = common-states.h
+
SCRIPT_LIST = \
runpaul-phase1.sh \
runpaul-phase2.sh \
@@ -61,163 +64,163 @@ URCU_CDS_LIB=$(top_builddir)/src/liburcu-cds.la
DEBUG_YIELD_LIB=$(builddir)/../common/libdebug-yield.la
-test_urcu_SOURCES = test_urcu.c
+test_urcu_SOURCES = test_urcu.c common-states.c
test_urcu_LDADD = $(URCU_LIB)
-test_urcu_dynamic_link_SOURCES = test_urcu.c
+test_urcu_dynamic_link_SOURCES = test_urcu.c common-states.c
test_urcu_dynamic_link_LDADD = $(URCU_LIB)
test_urcu_dynamic_link_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
-test_urcu_timing_SOURCES = test_urcu_timing.c
+test_urcu_timing_SOURCES = test_urcu_timing.c common-states.c
test_urcu_timing_LDADD = $(URCU_LIB)
-test_urcu_yield_SOURCES = test_urcu.c
+test_urcu_yield_SOURCES = test_urcu.c common-states.c
test_urcu_yield_LDADD = $(URCU_LIB) $(DEBUG_YIELD_LIB)
test_urcu_yield_CFLAGS = -DDEBUG_YIELD $(AM_CFLAGS)
-test_urcu_qsbr_SOURCES = test_urcu_qsbr.c
+test_urcu_qsbr_SOURCES = test_urcu_qsbr.c common-states.c
test_urcu_qsbr_LDADD = $(URCU_QSBR_LIB)
-test_urcu_qsbr_timing_SOURCES = test_urcu_qsbr_timing.c
+test_urcu_qsbr_timing_SOURCES = test_urcu_qsbr_timing.c common-states.c
test_urcu_qsbr_timing_LDADD = $(URCU_QSBR_LIB)
-test_urcu_mb_SOURCES = test_urcu.c
+test_urcu_mb_SOURCES = test_urcu.c common-states.c
test_urcu_mb_LDADD = $(URCU_MB_LIB)
test_urcu_mb_CFLAGS = -DRCU_MB $(AM_CFLAGS)
-test_urcu_signal_SOURCES = test_urcu.c
+test_urcu_signal_SOURCES = test_urcu.c common-states.c
test_urcu_signal_LDADD = $(URCU_SIGNAL_LIB)
test_urcu_signal_CFLAGS = -DRCU_SIGNAL $(AM_CFLAGS)
-test_urcu_signal_dynamic_link_SOURCES = test_urcu.c
+test_urcu_signal_dynamic_link_SOURCES = test_urcu.c common-states.c
test_urcu_signal_dynamic_link_LDADD = $(URCU_SIGNAL_LIB)
test_urcu_signal_dynamic_link_CFLAGS = -DRCU_SIGNAL -DDYNAMIC_LINK_TEST \
$(AM_CFLAGS)
-test_urcu_signal_timing_SOURCES = test_urcu_timing.c
+test_urcu_signal_timing_SOURCES = test_urcu_timing.c common-states.c
test_urcu_signal_timing_LDADD = $(URCU_SIGNAL_LIB)
test_urcu_signal_timing_CFLAGS= -DRCU_SIGNAL $(AM_CFLAGS)
-test_urcu_signal_yield_SOURCES = test_urcu.c
+test_urcu_signal_yield_SOURCES = test_urcu.c common-states.c
test_urcu_signal_yield_LDADD = $(URCU_SIGNAL_LIB) $(DEBUG_YIELD_LIB)
test_urcu_signal_yield_CFLAGS = -DRCU_SIGNAL -DDEBUG_YIELD $(AM_CFLAGS)
-test_rwlock_timing_SOURCES = test_rwlock_timing.c
+test_rwlock_timing_SOURCES = test_rwlock_timing.c common-states.c
test_rwlock_timing_LDADD = $(URCU_SIGNAL_LIB)
-test_rwlock_SOURCES = test_rwlock.c
+test_rwlock_SOURCES = test_rwlock.c common-states.c
test_rwlock_LDADD = $(URCU_SIGNAL_LIB)
-test_perthreadlock_timing_SOURCES = test_perthreadlock_timing.c
+test_perthreadlock_timing_SOURCES = test_perthreadlock_timing.c common-states.c
test_perthreadlock_timing_LDADD = $(URCU_SIGNAL_LIB)
-test_perthreadlock_SOURCES = test_perthreadlock.c
+test_perthreadlock_SOURCES = test_perthreadlock.c common-states.c
test_perthreadlock_LDADD = $(URCU_SIGNAL_LIB)
-test_mutex_SOURCES = test_mutex.c
+test_mutex_SOURCES = test_mutex.c common-states.c
-test_looplen_SOURCES = test_looplen.c
+test_looplen_SOURCES = test_looplen.c common-states.c
-test_urcu_gc_SOURCES = test_urcu_gc.c
+test_urcu_gc_SOURCES = test_urcu_gc.c common-states.c
test_urcu_gc_LDADD = $(URCU_LIB)
-test_urcu_signal_gc_SOURCES = test_urcu_gc.c
+test_urcu_signal_gc_SOURCES = test_urcu_gc.c common-states.c
test_urcu_signal_gc_LDADD = $(URCU_SIGNAL_LIB)
test_urcu_signal_gc_CFLAGS = -DRCU_SIGNAL $(AM_CFLAGS)
-test_urcu_mb_gc_SOURCES = test_urcu_gc.c
+test_urcu_mb_gc_SOURCES = test_urcu_gc.c common-states.c
test_urcu_mb_gc_LDADD = $(URCU_MB_LIB)
test_urcu_mb_gc_CFLAGS = -DRCU_MB $(AM_CFLAGS)
-test_urcu_qsbr_gc_SOURCES = test_urcu_qsbr_gc.c
+test_urcu_qsbr_gc_SOURCES = test_urcu_qsbr_gc.c common-states.c
test_urcu_qsbr_gc_LDADD = $(URCU_QSBR_LIB)
-test_urcu_qsbr_lgc_SOURCES = test_urcu_qsbr_gc.c
+test_urcu_qsbr_lgc_SOURCES = test_urcu_qsbr_gc.c common-states.c
test_urcu_qsbr_lgc_LDADD = $(URCU_QSBR_LIB)
test_urcu_qsbr_lgc_CFLAGS = -DTEST_LOCAL_GC $(AM_CFLAGS)
-test_urcu_lgc_SOURCES = test_urcu_gc.c
+test_urcu_lgc_SOURCES = test_urcu_gc.c common-states.c
test_urcu_lgc_LDADD = $(URCU_LIB)
test_urcu_lgc_CFLAGS = -DTEST_LOCAL_GC $(AM_CFLAGS)
-test_urcu_signal_lgc_SOURCES = test_urcu_gc.c
+test_urcu_signal_lgc_SOURCES = test_urcu_gc.c common-states.c
test_urcu_signal_lgc_LDADD = $(URCU_SIGNAL_LIB)
test_urcu_signal_lgc_CFLAGS = -DRCU_SIGNAL -DTEST_LOCAL_GC $(AM_CFLAGS)
-test_urcu_mb_lgc_SOURCES = test_urcu_gc.c
+test_urcu_mb_lgc_SOURCES = test_urcu_gc.c common-states.c
test_urcu_mb_lgc_LDADD = $(URCU_MB_LIB)
test_urcu_mb_lgc_CFLAGS = -DTEST_LOCAL_GC -DRCU_MB $(AM_CFLAGS)
-test_urcu_qsbr_dynamic_link_SOURCES = test_urcu_qsbr.c
+test_urcu_qsbr_dynamic_link_SOURCES = test_urcu_qsbr.c common-states.c
test_urcu_qsbr_dynamic_link_LDADD = $(URCU_QSBR_LIB)
test_urcu_qsbr_dynamic_link_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
-test_urcu_defer_SOURCES = test_urcu_defer.c
+test_urcu_defer_SOURCES = test_urcu_defer.c common-states.c
test_urcu_defer_LDADD = $(URCU_LIB)
test_cycles_per_loop_SOURCES = test_cycles_per_loop.c
-test_urcu_assign_SOURCES = test_urcu_assign.c
+test_urcu_assign_SOURCES = test_urcu_assign.c common-states.c
test_urcu_assign_LDADD = $(URCU_LIB)
-test_urcu_assign_dynamic_link_SOURCES = test_urcu_assign.c
+test_urcu_assign_dynamic_link_SOURCES = test_urcu_assign.c common-states.c
test_urcu_assign_dynamic_link_LDADD = $(URCU_LIB)
test_urcu_assign_dynamic_link_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
-test_urcu_bp_SOURCES = test_urcu_bp.c
+test_urcu_bp_SOURCES = test_urcu_bp.c common-states.c
test_urcu_bp_LDADD = $(URCU_BP_LIB)
-test_urcu_bp_dynamic_link_SOURCES = test_urcu_bp.c
+test_urcu_bp_dynamic_link_SOURCES = test_urcu_bp.c common-states.c
test_urcu_bp_dynamic_link_LDADD = $(URCU_BP_LIB)
test_urcu_bp_dynamic_link_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
-test_urcu_lfq_SOURCES = test_urcu_lfq.c
+test_urcu_lfq_SOURCES = test_urcu_lfq.c common-states.c
test_urcu_lfq_LDADD = $(URCU_LIB) $(URCU_CDS_LIB)
-test_urcu_lfq_dynlink_SOURCES = test_urcu_lfq.c
+test_urcu_lfq_dynlink_SOURCES = test_urcu_lfq.c common-states.c
test_urcu_lfq_dynlink_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
test_urcu_lfq_dynlink_LDADD = $(URCU_LIB) $(URCU_CDS_LIB)
-test_urcu_wfq_SOURCES = test_urcu_wfq.c
+test_urcu_wfq_SOURCES = test_urcu_wfq.c common-states.c
test_urcu_wfq_LDADD = $(URCU_COMMON_LIB)
-test_urcu_wfq_dynlink_SOURCES = test_urcu_wfq.c
+test_urcu_wfq_dynlink_SOURCES = test_urcu_wfq.c common-states.c
test_urcu_wfq_dynlink_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
test_urcu_wfq_dynlink_LDADD = $(URCU_COMMON_LIB)
-test_urcu_wfcq_SOURCES = test_urcu_wfcq.c
+test_urcu_wfcq_SOURCES = test_urcu_wfcq.c common-states.c
test_urcu_wfcq_LDADD = $(URCU_COMMON_LIB)
-test_urcu_wfcq_dynlink_SOURCES = test_urcu_wfcq.c
+test_urcu_wfcq_dynlink_SOURCES = test_urcu_wfcq.c common-states.c
test_urcu_wfcq_dynlink_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
test_urcu_wfcq_dynlink_LDADD = $(URCU_COMMON_LIB)
-test_urcu_lfs_SOURCES = test_urcu_lfs.c
+test_urcu_lfs_SOURCES = test_urcu_lfs.c common-states.c
test_urcu_lfs_LDADD = $(URCU_LIB) $(URCU_CDS_LIB)
-test_urcu_lfs_rcu_SOURCES = test_urcu_lfs_rcu.c
+test_urcu_lfs_rcu_SOURCES = test_urcu_lfs_rcu.c common-states.c
test_urcu_lfs_rcu_LDADD = $(URCU_LIB) $(URCU_CDS_LIB)
-test_urcu_lfs_dynlink_SOURCES = test_urcu_lfs.c
+test_urcu_lfs_dynlink_SOURCES = test_urcu_lfs.c common-states.c
test_urcu_lfs_dynlink_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
test_urcu_lfs_dynlink_LDADD = $(URCU_LIB) $(URCU_CDS_LIB)
-test_urcu_lfs_rcu_dynlink_SOURCES = test_urcu_lfs_rcu.c
+test_urcu_lfs_rcu_dynlink_SOURCES = test_urcu_lfs_rcu.c common-states.c
test_urcu_lfs_rcu_dynlink_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
test_urcu_lfs_rcu_dynlink_LDADD = $(URCU_LIB) $(URCU_CDS_LIB)
-test_urcu_wfs_SOURCES = test_urcu_wfs.c
+test_urcu_wfs_SOURCES = test_urcu_wfs.c common-states.c
test_urcu_wfs_LDADD = $(URCU_COMMON_LIB)
-test_urcu_wfs_dynlink_SOURCES = test_urcu_wfs.c
+test_urcu_wfs_dynlink_SOURCES = test_urcu_wfs.c common-states.c
test_urcu_wfs_dynlink_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS)
test_urcu_wfs_dynlink_LDADD = $(URCU_COMMON_LIB)
test_urcu_hash_SOURCES = test_urcu_hash.c test_urcu_hash.h \
- test_urcu_hash_rw.c test_urcu_hash_unique.c
+ test_urcu_hash_rw.c test_urcu_hash_unique.c common-states.c
test_urcu_hash_CFLAGS = -DRCU_QSBR $(AM_CFLAGS)
test_urcu_hash_LDADD = $(URCU_QSBR_LIB) $(URCU_COMMON_LIB) $(URCU_CDS_LIB)
diff --git a/tests/benchmark/common-states.c b/tests/benchmark/common-states.c
new file mode 100644
index 0000000..6e70351
--- /dev/null
+++ b/tests/benchmark/common-states.c
@@ -0,0 +1 @@
+volatile int _test_go = 0, _test_stop = 0;
diff --git a/tests/benchmark/common-states.h b/tests/benchmark/common-states.h
new file mode 100644
index 0000000..dfbbfe5
--- /dev/null
+++ b/tests/benchmark/common-states.h
@@ -0,0 +1,51 @@
+/* Common states for benchmarks. */
+
+#include <unistd.h>
+
+#include <urcu/uatomic.h>
+
+extern volatile int _test_go, _test_stop;
+
+static inline void complete_sleep(unsigned int seconds)
+{
+ while (seconds != 0) {
+ seconds = sleep(seconds);
+ }
+}
+
+static inline void begin_test(void)
+{
+ uatomic_store(&_test_go, 1, CMM_RELEASE);
+}
+
+static inline void end_test(void)
+{
+ uatomic_store(&_test_stop, 1, CMM_RELAXED);
+}
+
+static inline void test_for(unsigned int duration)
+{
+ begin_test();
+ complete_sleep(duration);
+ end_test();
+}
+
+static inline void wait_until_go(void)
+{
+ while (!uatomic_load(&_test_go, CMM_ACQUIRE))
+ {
+ }
+}
+
+/*
+ * returns 0 if test should end.
+ */
+static inline int test_duration_write(void)
+{
+ return !uatomic_load(&_test_stop, CMM_RELAXED);
+}
+
+static inline int test_duration_read(void)
+{
+ return !uatomic_load(&_test_stop, CMM_RELAXED);
+}
diff --git a/tests/benchmark/test_mutex.c b/tests/benchmark/test_mutex.c
index 55f7c38..145139c 100644
--- a/tests/benchmark/test_mutex.c
+++ b/tests/benchmark/test_mutex.c
@@ -49,8 +49,6 @@ struct test_array {
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static volatile struct test_array test_array = { 8 };
@@ -111,19 +109,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -147,9 +132,7 @@ void *thr_reader(void *data)
set_affinity();
- while (!test_go)
- {
- }
+ wait_until_go();
for (;;) {
int v;
@@ -182,10 +165,7 @@ void *thr_writer(void *data)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
pthread_mutex_lock(&lock);
@@ -325,13 +305,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_perthreadlock.c b/tests/benchmark/test_perthreadlock.c
index 47a512c..bf468eb 100644
--- a/tests/benchmark/test_perthreadlock.c
+++ b/tests/benchmark/test_perthreadlock.c
@@ -53,8 +53,6 @@ struct per_thread_lock {
static struct per_thread_lock *per_thread_lock;
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static volatile struct test_array test_array = { 8 };
@@ -117,19 +115,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -175,9 +160,7 @@ void *thr_reader(void *data)
set_affinity();
- while (!test_go)
- {
- }
+ wait_until_go();
for (;;) {
int v;
@@ -211,10 +194,7 @@ void *thr_writer(void *data)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
for (tidx = 0; tidx < (long)nr_readers; tidx++) {
@@ -359,13 +339,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_rwlock.c b/tests/benchmark/test_rwlock.c
index 6908ea4..f5099e8 100644
--- a/tests/benchmark/test_rwlock.c
+++ b/tests/benchmark/test_rwlock.c
@@ -53,8 +53,6 @@ struct test_array {
*/
pthread_rwlock_t lock;
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static volatile struct test_array test_array = { 8 };
@@ -116,19 +114,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -147,9 +132,7 @@ void *thr_reader(void *_count)
set_affinity();
- while (!test_go)
- {
- }
+ wait_until_go();
for (;;) {
int a, ret;
@@ -194,10 +177,7 @@ void *thr_writer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
int ret;
@@ -355,13 +335,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu.c b/tests/benchmark/test_urcu.c
index ea849fa..b89513b 100644
--- a/tests/benchmark/test_urcu.c
+++ b/tests/benchmark/test_urcu.c
@@ -44,8 +44,6 @@
#endif
#include <urcu.h>
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static int *test_rcu_pointer;
@@ -107,19 +105,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -142,10 +127,7 @@ void *thr_reader(void *_count)
rcu_register_thread();
urcu_posix_assert(!rcu_read_ongoing());
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -186,10 +168,7 @@ void *thr_writer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
new = malloc(sizeof(int));
@@ -337,13 +316,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_assign.c b/tests/benchmark/test_urcu_assign.c
index 88889a8..e83b05e 100644
--- a/tests/benchmark/test_urcu_assign.c
+++ b/tests/benchmark/test_urcu_assign.c
@@ -48,8 +48,6 @@ struct test_array {
int a;
};
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static struct test_array *test_rcu_pointer;
@@ -111,19 +109,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -201,10 +186,7 @@ void *thr_reader(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -240,10 +222,7 @@ void *thr_writer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_copy_mutex_lock();
@@ -394,13 +373,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_bp.c b/tests/benchmark/test_urcu_bp.c
index 6f8c59d..c3b00f1 100644
--- a/tests/benchmark/test_urcu_bp.c
+++ b/tests/benchmark/test_urcu_bp.c
@@ -44,8 +44,6 @@
#endif
#include <urcu-bp.h>
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static int *test_rcu_pointer;
@@ -107,19 +105,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -142,10 +127,7 @@ void *thr_reader(void *_count)
rcu_register_thread();
urcu_posix_assert(!rcu_read_ongoing());
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -182,10 +164,7 @@ void *thr_writer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
new = malloc(sizeof(int));
@@ -332,13 +311,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_defer.c b/tests/benchmark/test_urcu_defer.c
index e948ebf..c501f60 100644
--- a/tests/benchmark/test_urcu_defer.c
+++ b/tests/benchmark/test_urcu_defer.c
@@ -49,8 +49,6 @@ struct test_array {
int a;
};
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static struct test_array *test_rcu_pointer;
@@ -112,19 +110,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -149,10 +134,7 @@ void *thr_reader(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -203,10 +185,7 @@ void *thr_writer(void *data)
exit(-1);
}
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
new = malloc(sizeof(*new));
@@ -359,13 +338,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_gc.c b/tests/benchmark/test_urcu_gc.c
index f14f728..1cbee44 100644
--- a/tests/benchmark/test_urcu_gc.c
+++ b/tests/benchmark/test_urcu_gc.c
@@ -33,6 +33,7 @@
#include <urcu/arch.h>
#include <urcu/assert.h>
#include <urcu/tls-compat.h>
+#include <urcu/uatomic.h>
#include "thread-id.h"
#include "../common/debug-yield.h"
@@ -48,8 +49,6 @@ struct test_array {
int a;
};
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static struct test_array *test_rcu_pointer;
@@ -120,19 +119,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -157,10 +143,7 @@ void *thr_reader(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -231,10 +214,7 @@ void *thr_writer(void *data)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
#ifndef TEST_LOCAL_GC
@@ -399,13 +379,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_hash.c b/tests/benchmark/test_urcu_hash.c
index 3574b4c..1a3087e 100644
--- a/tests/benchmark/test_urcu_hash.c
+++ b/tests/benchmark/test_urcu_hash.c
@@ -96,8 +96,6 @@ DEFINE_URCU_TLS(unsigned long, lookup_ok);
struct cds_lfht *test_ht;
-volatile int test_go, test_stop;
-
unsigned long wdelay;
unsigned long duration;
@@ -649,14 +647,14 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
remain = duration;
do {
remain = sleep(remain);
} while (remain > 0);
- test_stop = 1;
+ end_test();
end_pthread_join:
for (i_thr = 0; i_thr < nr_readers_created; i_thr++) {
diff --git a/tests/benchmark/test_urcu_hash.h b/tests/benchmark/test_urcu_hash.h
index 47b2ae3..73a0a6d 100644
--- a/tests/benchmark/test_urcu_hash.h
+++ b/tests/benchmark/test_urcu_hash.h
@@ -125,8 +125,6 @@ cds_lfht_iter_get_test_node(struct cds_lfht_iter *iter)
return to_test_node(cds_lfht_iter_get_node(iter));
}
-extern volatile int test_go, test_stop;
-
extern unsigned long wdelay;
extern unsigned long duration;
@@ -174,19 +172,6 @@ extern pthread_mutex_t affinity_mutex;
void set_affinity(void);
-/*
- * returns 0 if test should end.
- */
-static inline int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static inline int test_duration_read(void)
-{
- return !test_stop;
-}
-
extern DECLARE_URCU_TLS(unsigned long long, nr_writes);
extern DECLARE_URCU_TLS(unsigned long long, nr_reads);
diff --git a/tests/benchmark/test_urcu_hash_rw.c b/tests/benchmark/test_urcu_hash_rw.c
index 862a6f0..087e869 100644
--- a/tests/benchmark/test_urcu_hash_rw.c
+++ b/tests/benchmark/test_urcu_hash_rw.c
@@ -73,10 +73,7 @@ void *test_hash_rw_thr_reader(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -133,10 +130,7 @@ void *test_hash_rw_thr_writer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_lfht_node *ret_node = NULL;
diff --git a/tests/benchmark/test_urcu_hash_unique.c b/tests/benchmark/test_urcu_hash_unique.c
index de7c427..90c0e19 100644
--- a/tests/benchmark/test_urcu_hash_unique.c
+++ b/tests/benchmark/test_urcu_hash_unique.c
@@ -71,10 +71,7 @@ void *test_hash_unique_thr_reader(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct lfht_test_node *node;
@@ -136,10 +133,7 @@ void *test_hash_unique_thr_writer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
/*
diff --git a/tests/benchmark/test_urcu_lfq.c b/tests/benchmark/test_urcu_lfq.c
index 490e8b0..50c4211 100644
--- a/tests/benchmark/test_urcu_lfq.c
+++ b/tests/benchmark/test_urcu_lfq.c
@@ -47,8 +47,6 @@
#include <urcu.h>
#include <urcu/cds.h>
-static volatile int test_go, test_stop;
-
static unsigned long rduration;
static unsigned long duration;
@@ -110,12 +108,12 @@ static void set_affinity(void)
*/
static int test_duration_dequeue(void)
{
- return !test_stop;
+ return test_duration_read();
}
static int test_duration_enqueue(void)
{
- return !test_stop;
+ return test_duration_write();
}
static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -146,10 +144,7 @@ void *thr_enqueuer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct test *node = malloc(sizeof(*node));
@@ -202,10 +197,7 @@ void *thr_dequeuer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_lfq_node_rcu *qnode;
@@ -375,7 +367,7 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
for (i_thr = 0; i_thr < duration; i_thr++) {
sleep(1);
@@ -385,7 +377,7 @@ int main(int argc, char **argv)
}
}
- test_stop = 1;
+ end_test();
for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
err = pthread_join(tid_enqueuer[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_lfs.c b/tests/benchmark/test_urcu_lfs.c
index 52239e0..48b2b23 100644
--- a/tests/benchmark/test_urcu_lfs.c
+++ b/tests/benchmark/test_urcu_lfs.c
@@ -59,8 +59,6 @@ enum test_sync {
static enum test_sync test_sync;
-static volatile int test_go, test_stop;
-
static unsigned long rduration;
static unsigned long duration;
@@ -124,12 +122,12 @@ static void set_affinity(void)
*/
static int test_duration_dequeue(void)
{
- return !test_stop;
+ return test_duration_read();
}
static int test_duration_enqueue(void)
{
- return !test_stop;
+ return test_duration_write();
}
static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -159,10 +157,7 @@ static void *thr_enqueuer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct test *node = malloc(sizeof(*node));
@@ -261,10 +256,7 @@ static void *thr_dequeuer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
urcu_posix_assert(test_pop || test_pop_all);
@@ -459,7 +451,7 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
for (i_thr = 0; i_thr < duration; i_thr++) {
sleep(1);
@@ -469,7 +461,7 @@ int main(int argc, char **argv)
}
}
- test_stop = 1;
+ end_test();
for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
err = pthread_join(tid_enqueuer[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_lfs_rcu.c b/tests/benchmark/test_urcu_lfs_rcu.c
index 7975faf..ae3dff4 100644
--- a/tests/benchmark/test_urcu_lfs_rcu.c
+++ b/tests/benchmark/test_urcu_lfs_rcu.c
@@ -51,8 +51,6 @@
#include <urcu/cds.h>
-static volatile int test_go, test_stop;
-
static unsigned long rduration;
static unsigned long duration;
@@ -114,12 +112,12 @@ static void set_affinity(void)
*/
static int test_duration_dequeue(void)
{
- return !test_stop;
+ return test_duration_read();
}
static int test_duration_enqueue(void)
{
- return !test_stop;
+ return test_duration_write();
}
static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -150,10 +148,7 @@ void *thr_enqueuer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct test *node = malloc(sizeof(*node));
@@ -205,10 +200,7 @@ void *thr_dequeuer(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_lfs_node_rcu *snode;
@@ -377,7 +369,7 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
for (i_thr = 0; i_thr < duration; i_thr++) {
sleep(1);
@@ -387,7 +379,7 @@ int main(int argc, char **argv)
}
}
- test_stop = 1;
+ end_test();
for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
err = pthread_join(tid_enqueuer[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_qsbr.c b/tests/benchmark/test_urcu_qsbr.c
index 1ea369c..295e9db 100644
--- a/tests/benchmark/test_urcu_qsbr.c
+++ b/tests/benchmark/test_urcu_qsbr.c
@@ -44,8 +44,6 @@
#endif
#include "urcu-qsbr.h"
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static int *test_rcu_pointer;
@@ -106,19 +104,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -145,10 +130,7 @@ void *thr_reader(void *_count)
urcu_posix_assert(!rcu_read_ongoing());
rcu_thread_online();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
rcu_read_lock();
@@ -192,10 +174,7 @@ void *thr_writer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
new = malloc(sizeof(int));
@@ -343,13 +322,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_qsbr_gc.c b/tests/benchmark/test_urcu_qsbr_gc.c
index 8877a82..163405d 100644
--- a/tests/benchmark/test_urcu_qsbr_gc.c
+++ b/tests/benchmark/test_urcu_qsbr_gc.c
@@ -33,6 +33,7 @@
#include <urcu/arch.h>
#include <urcu/assert.h>
#include <urcu/tls-compat.h>
+#include <urcu/uatomic.h>
#include "thread-id.h"
#include "../common/debug-yield.h"
@@ -46,8 +47,6 @@ struct test_array {
int a;
};
-static volatile int test_go, test_stop;
-
static unsigned long wdelay;
static struct test_array *test_rcu_pointer;
@@ -118,19 +117,6 @@ static void set_affinity(void)
#endif /* HAVE_SCHED_SETAFFINITY */
}
-/*
- * returns 0 if test should end.
- */
-static int test_duration_write(void)
-{
- return !test_stop;
-}
-
-static int test_duration_read(void)
-{
- return !test_stop;
-}
-
static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);
@@ -154,10 +140,7 @@ void *thr_reader(void *_count)
rcu_register_thread();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
_rcu_read_lock();
@@ -231,10 +214,7 @@ void *thr_writer(void *data)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
#ifndef TEST_LOCAL_GC
@@ -399,13 +379,7 @@ int main(int argc, char **argv)
exit(1);
}
- cmm_smp_mb();
-
- test_go = 1;
-
- sleep(duration);
-
- test_stop = 1;
+ test_for(duration);
for (i_thr = 0; i_thr < nr_readers; i_thr++) {
err = pthread_join(tid_reader[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_wfcq.c b/tests/benchmark/test_urcu_wfcq.c
index 2c6e0fd..542a13a 100644
--- a/tests/benchmark/test_urcu_wfcq.c
+++ b/tests/benchmark/test_urcu_wfcq.c
@@ -56,7 +56,7 @@ static enum test_sync test_sync;
static int test_force_sync;
-static volatile int test_go, test_stop_enqueue, test_stop_dequeue;
+static volatile int test_stop_enqueue, test_stop_dequeue;
static unsigned long rduration;
@@ -122,12 +122,12 @@ static void set_affinity(void)
*/
static int test_duration_dequeue(void)
{
- return !test_stop_dequeue;
+ return !uatomic_load(&test_stop_dequeue, CMM_RELAXED);
}
static int test_duration_enqueue(void)
{
- return !test_stop_enqueue;
+ return !uatomic_load(&test_stop_enqueue, CMM_RELAXED);
}
static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -155,10 +155,7 @@ static void *thr_enqueuer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_wfcq_node *node = malloc(sizeof(*node));
@@ -266,10 +263,7 @@ static void *thr_dequeuer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
if (test_dequeue && test_splice) {
@@ -482,7 +476,7 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
for (i_thr = 0; i_thr < duration; i_thr++) {
sleep(1);
@@ -492,7 +486,7 @@ int main(int argc, char **argv)
}
}
- test_stop_enqueue = 1;
+ uatomic_store(&test_stop_enqueue, 1, CMM_RELEASE);
if (test_wait_empty) {
while (nr_enqueuers != uatomic_read(&test_enqueue_stopped)) {
@@ -503,7 +497,7 @@ int main(int argc, char **argv)
}
}
- test_stop_dequeue = 1;
+ uatomic_store(&test_stop_dequeue, 1, CMM_RELAXED);
for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
err = pthread_join(tid_enqueuer[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_wfq.c b/tests/benchmark/test_urcu_wfq.c
index 8381160..2d8de87 100644
--- a/tests/benchmark/test_urcu_wfq.c
+++ b/tests/benchmark/test_urcu_wfq.c
@@ -51,8 +51,6 @@
#include <urcu.h>
#include <urcu/wfqueue.h>
-static volatile int test_go, test_stop;
-
static unsigned long rduration;
static unsigned long duration;
@@ -114,12 +112,12 @@ static void set_affinity(void)
*/
static int test_duration_dequeue(void)
{
- return !test_stop;
+ return test_duration_read();
}
static int test_duration_enqueue(void)
{
- return !test_stop;
+ return test_duration_write();
}
static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -143,10 +141,7 @@ void *thr_enqueuer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_wfq_node *node = malloc(sizeof(*node));
@@ -185,10 +180,7 @@ void *thr_dequeuer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_wfq_node *node = cds_wfq_dequeue_blocking(&q);
@@ -343,7 +335,7 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
for (i_thr = 0; i_thr < duration; i_thr++) {
sleep(1);
@@ -353,7 +345,7 @@ int main(int argc, char **argv)
}
}
- test_stop = 1;
+ end_test();
for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
err = pthread_join(tid_enqueuer[i_thr], &tret);
diff --git a/tests/benchmark/test_urcu_wfs.c b/tests/benchmark/test_urcu_wfs.c
index c285feb..d1a4afc 100644
--- a/tests/benchmark/test_urcu_wfs.c
+++ b/tests/benchmark/test_urcu_wfs.c
@@ -59,7 +59,7 @@ static enum test_sync test_sync;
static int test_force_sync;
-static volatile int test_go, test_stop_enqueue, test_stop_dequeue;
+static volatile int test_stop_enqueue, test_stop_dequeue;
static unsigned long rduration;
@@ -125,12 +125,12 @@ static void set_affinity(void)
*/
static int test_duration_dequeue(void)
{
- return !test_stop_dequeue;
+ return !uatomic_load(&test_stop_dequeue, CMM_RELAXED);
}
static int test_duration_enqueue(void)
{
- return !test_stop_enqueue;
+ return !uatomic_load(&test_stop_enqueue, CMM_RELAXED);
}
static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -157,10 +157,7 @@ static void *thr_enqueuer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
for (;;) {
struct cds_wfs_node *node = malloc(sizeof(*node));
@@ -250,10 +247,7 @@ static void *thr_dequeuer(void *_count)
set_affinity();
- while (!test_go)
- {
- }
- cmm_smp_mb();
+ wait_until_go();
urcu_posix_assert(test_pop || test_pop_all);
@@ -469,7 +463,7 @@ int main(int argc, char **argv)
cmm_smp_mb();
- test_go = 1;
+ begin_test();
for (i_thr = 0; i_thr < duration; i_thr++) {
sleep(1);
@@ -479,7 +473,7 @@ int main(int argc, char **argv)
}
}
- test_stop_enqueue = 1;
+ uatomic_store(&test_stop_enqueue, 1, CMM_RELEASE);
if (test_wait_empty) {
while (nr_enqueuers != uatomic_read(&test_enqueue_stopped)) {
@@ -490,7 +484,7 @@ int main(int argc, char **argv)
}
}
- test_stop_dequeue = 1;
+ uatomic_store(&test_stop_dequeue, 1, CMM_RELAXED);
for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
err = pthread_join(tid_enqueuer[i_thr], &tret);
--
2.40.1
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