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fix runtests.sh
[urcu.git]
/
test_qsbr.c
diff --git
a/test_qsbr.c
b/test_qsbr.c
index 3d906cc4bc54d39f503b6bd4ae1f2082a05aff8e..f56234b564c8bac4a6d01ff1b2eede53beba3e0f 100644
(file)
--- a/
test_qsbr.c
+++ b/
test_qsbr.c
@@
-20,6
+20,7
@@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#define _GNU_SOURCE
#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
@@
-30,6
+31,7
@@
#include <stdio.h>
#include <assert.h>
#include <sys/syscall.h>
#include <stdio.h>
#include <assert.h>
#include <sys/syscall.h>
+#include <sched.h>
#include "arch.h"
#include "arch.h"
@@
-55,39
+57,25
@@
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;
@@
-178,9
+166,10
@@
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 (unlikely((nr_reads & ((1 << 10) - 1)) == 0))
_rcu_quiescent_state();
_rcu_quiescent_state();
- if (
!test_duration_read(
))
+ if (
unlikely(!test_duration_read()
))
break;
}
break;
}
@@
-220,9
+209,9
@@
void *thr_writer(void *_count)
old->a = 0;
test_array_free(old);
nr_writes++;
old->a = 0;
test_array_free(old);
nr_writes++;
- if (
!test_duration_write(
))
+ if (
unlikely(!test_duration_write()
))
break;
break;
- if (
wdelay
)
+ if (
unlikely(wdelay)
)
usleep(wdelay);
}
usleep(wdelay);
}
@@
-239,9
+228,12
@@
void show_usage(int argc, char **argv)
printf(" [-r] [-w] (yield reader and/or writer)");
#endif
printf(" [-d delay] (writer period (us))");
printf(" [-r] [-w] (yield reader and/or writer)");
#endif
printf(" [-d delay] (writer period (us))");
+ printf(" [-a cpu#] [-a cpu#]... (affinity)");
printf("\n");
}
printf("\n");
}
+cpu_set_t affinity;
+
int main(int argc, char **argv)
{
int err;
int main(int argc, char **argv)
{
int err;
@@
-249,7
+241,8
@@
int main(int argc, char **argv)
void *tret;
unsigned long long *count_reader, *count_writer;
unsigned long long tot_reads = 0, tot_writes = 0;
void *tret;
unsigned long long *count_reader, *count_writer;
unsigned long long tot_reads = 0, tot_writes = 0;
- int i;
+ int i, a;
+ int use_affinity = 0;
if (argc < 4) {
show_usage(argc, argv);
if (argc < 4) {
show_usage(argc, argv);
@@
-274,6
+267,8
@@
int main(int argc, char **argv)
return -1;
}
return -1;
}
+ CPU_ZERO(&affinity);
+
for (i = 4; i < argc; i++) {
if (argv[i][0] != '-')
continue;
for (i = 4; i < argc; i++) {
if (argv[i][0] != '-')
continue;
@@
-286,6
+281,16
@@
int main(int argc, char **argv)
yield_active |= YIELD_WRITE;
break;
#endif
yield_active |= YIELD_WRITE;
break;
#endif
+ case 'a':
+ if (argc < i + 2) {
+ show_usage(argc, argv);
+ return -1;
+ }
+ a = atoi(argv[++i]);
+ CPU_SET(a, &affinity);
+ use_affinity = 1;
+ printf("Adding CPU %d affinity\n", a);
+ break;
case 'd':
if (argc < i + 2) {
show_usage(argc, argv);
case 'd':
if (argc < i + 2) {
show_usage(argc, argv);
@@
-302,6
+307,12
@@
int main(int argc, char **argv)
printf("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
printf("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
+ if (use_affinity
+ && sched_setaffinity(0, sizeof(affinity), &affinity) < 0) {
+ perror("sched_setaffinity");
+ exit(-1);
+ }
+
test_array = malloc(sizeof(*test_array) * ARRAY_SIZE);
tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
test_array = malloc(sizeof(*test_array) * ARRAY_SIZE);
tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
@@
-321,10
+332,14
@@
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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