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Use more lightweight timer mechanism in test
[userspace-rcu.git]
/
test_qsbr.c
diff --git
a/test_qsbr.c
b/test_qsbr.c
index 3d906cc4bc54d39f503b6bd4ae1f2082a05aff8e..ff55f8b8515f62185d1241056a1cfc8668bce010 100644
(file)
--- a/
test_qsbr.c
+++ b/
test_qsbr.c
@@
-55,39
+55,25
@@
struct test_array {
int a;
};
int a;
};
-static volatile int test_go;
+static volatile int test_go
, test_stop
;
static int wdelay;
static struct test_array *test_rcu_pointer;
static unsigned long duration;
static int wdelay;
static struct test_array *test_rcu_pointer;
static unsigned long duration;
-static time_t start_time;
-static unsigned long __thread duration_interval;
-#define DURATION_TEST_DELAY_WRITE 4
-#define DURATION_TEST_DELAY_READ 100
/*
* returns 0 if test should end.
*/
static int test_duration_write(void)
{
/*
* returns 0 if test should end.
*/
static int test_duration_write(void)
{
- if (duration_interval++ >= DURATION_TEST_DELAY_WRITE) {
- duration_interval = 0;
- if (time(NULL) - start_time >= duration)
- return 0;
- }
- return 1;
+ return !test_stop;
}
static int test_duration_read(void)
{
}
static int test_duration_read(void)
{
- if (duration_interval++ >= DURATION_TEST_DELAY_READ) {
- duration_interval = 0;
- if (time(NULL) - start_time >= duration)
- return 0;
- }
- return 1;
+ return !test_stop;
}
static unsigned long long __thread nr_writes;
}
static unsigned long long __thread nr_writes;
@@
-178,7
+164,8
@@
void *thr_reader(void *_count)
assert(local_ptr->a == 8);
_rcu_read_unlock();
nr_reads++;
assert(local_ptr->a == 8);
_rcu_read_unlock();
nr_reads++;
- if (duration_interval >= DURATION_TEST_DELAY_READ - 1)
+ /* QS each 1024 reads */
+ if ((nr_reads & ((1 << 10) - 1)) == 0)
_rcu_quiescent_state();
if (!test_duration_read())
break;
_rcu_quiescent_state();
if (!test_duration_read())
break;
@@
-321,10
+308,14
@@
int main(int argc, char **argv)
exit(1);
}
exit(1);
}
- start_time = time(NULL);
- test_go = 1;
smp_mb();
smp_mb();
+ test_go = 1;
+
+ sleep(duration);
+
+ test_stop = 1;
+
for (i = 0; i < nr_readers; i++) {
err = pthread_join(tid_reader[i], &tret);
if (err != 0)
for (i = 0; i < nr_readers; i++) {
err = pthread_join(tid_reader[i], &tret);
if (err != 0)
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