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Add verbose mode
[urcu.git]
/
test_qsbr.c
diff --git
a/test_qsbr.c
b/test_qsbr.c
index ff55f8b8515f62185d1241056a1cfc8668bce010..b65d9ca1093a524d9580547a665c0d5fc322b490 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"
@@
-63,6
+65,23
@@
static struct test_array *test_rcu_pointer;
static unsigned long duration;
static unsigned long duration;
+/* read-side C.S. duration, in loops */
+static unsigned long rduration;
+
+static inline void loop_sleep(unsigned long l)
+{
+ while(l-- != 0)
+ cpu_relax();
+}
+
+static int verbose_mode;
+
+#define printf_verbose(fmt, args...) \
+ do { \
+ if (verbose_mode) \
+ printf(fmt, args); \
+ } while (0)
+
/*
* returns 0 if test should end.
*/
/*
* returns 0 if test should end.
*/
@@
-146,7
+165,7
@@
void *thr_reader(void *_count)
unsigned long long *count = _count;
struct test_array *local_ptr;
unsigned long long *count = _count;
struct test_array *local_ptr;
- printf("thread_begin %s, thread id : %lx, tid %lu\n",
+ printf
_verbose
("thread_begin %s, thread id : %lx, tid %lu\n",
"reader", pthread_self(), (unsigned long)gettid());
rcu_register_thread();
"reader", pthread_self(), (unsigned long)gettid());
rcu_register_thread();
@@
-162,19
+181,21
@@
void *thr_reader(void *_count)
debug_yield_read();
if (local_ptr)
assert(local_ptr->a == 8);
debug_yield_read();
if (local_ptr)
assert(local_ptr->a == 8);
+ if (unlikely(rduration))
+ loop_sleep(rduration);
_rcu_read_unlock();
nr_reads++;
/* QS each 1024 reads */
_rcu_read_unlock();
nr_reads++;
/* QS each 1024 reads */
- if (
(nr_reads & ((1 << 10) - 1)) == 0
)
+ if (
unlikely((nr_reads & ((1 << 10) - 1)) == 0)
)
_rcu_quiescent_state();
_rcu_quiescent_state();
- if (
!test_duration_read(
))
+ if (
unlikely(!test_duration_read()
))
break;
}
rcu_unregister_thread();
*count = nr_reads;
break;
}
rcu_unregister_thread();
*count = nr_reads;
- printf("thread_end %s, thread id : %lx, tid %lu\n",
+ printf
_verbose
("thread_end %s, thread id : %lx, tid %lu\n",
"reader", pthread_self(), (unsigned long)gettid());
return ((void*)1);
"reader", pthread_self(), (unsigned long)gettid());
return ((void*)1);
@@
-185,7
+206,7
@@
void *thr_writer(void *_count)
unsigned long long *count = _count;
struct test_array *new, *old;
unsigned long long *count = _count;
struct test_array *new, *old;
- printf("thread_begin %s, thread id : %lx, tid %lu\n",
+ printf
_verbose
("thread_begin %s, thread id : %lx, tid %lu\n",
"writer", pthread_self(), (unsigned long)gettid());
while (!test_go)
"writer", pthread_self(), (unsigned long)gettid());
while (!test_go)
@@
-207,13
+228,13
@@
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);
}
- printf("thread_end %s, thread id : %lx, tid %lu\n",
+ printf
_verbose
("thread_end %s, thread id : %lx, tid %lu\n",
"writer", pthread_self(), (unsigned long)gettid());
*count = nr_writes;
return ((void*)2);
"writer", pthread_self(), (unsigned long)gettid());
*count = nr_writes;
return ((void*)2);
@@
-226,9
+247,14
@@
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(" [-c duration] (reader C.S. duration (in loops))");
+ printf(" [-v] (verbose output)");
+ 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;
@@
-236,7
+262,8
@@
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);
@@
-261,6
+288,8
@@
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;
@@
-273,6
+302,23
@@
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_verbose("Adding CPU %d affinity\n", a);
+ break;
+ case 'c':
+ if (argc < i + 2) {
+ show_usage(argc, argv);
+ return -1;
+ }
+ rduration = atoi(argv[++i]);
+ break;
case 'd':
if (argc < i + 2) {
show_usage(argc, argv);
case 'd':
if (argc < i + 2) {
show_usage(argc, argv);
@@
-280,15
+326,25
@@
int main(int argc, char **argv)
}
wdelay = atoi(argv[++i]);
break;
}
wdelay = atoi(argv[++i]);
break;
+ case 'v':
+ verbose_mode = 1;
+ break;
}
}
}
}
- printf("running test for %lu seconds, %u readers, %u writers.\n",
+ printf
_verbose
("running test for %lu seconds, %u readers, %u writers.\n",
duration, nr_readers, nr_writers);
duration, nr_readers, nr_writers);
- printf("Writer delay : %u us.\n", wdelay);
- printf("thread %-6s, thread id : %lx, tid %lu\n",
+ printf_verbose("Writer delay : %u us.\n", wdelay);
+ printf_verbose("Reader duration : %lu loops.\n", rduration);
+ printf_verbose("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
"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);
@@
-329,8
+385,13
@@
int main(int argc, char **argv)
tot_writes += count_writer[i];
}
tot_writes += count_writer[i];
}
- printf("total number of reads : %llu, writes %llu\n", tot_reads,
+ printf
_verbose
("total number of reads : %llu, writes %llu\n", tot_reads,
tot_writes);
tot_writes);
+ printf("SUMMARY %s testdur %lu nr_readers %u rdur %lu nr_writers %u "
+ "wdelay %u nr_reads %llu nr_writes %llu nr_ops %llu\n",
+ argv[0], duration, nr_readers, rduration,
+ nr_writers, wdelay, tot_reads, tot_writes,
+ tot_reads + tot_writes);
test_array_free(test_rcu_pointer);
free(test_array);
free(tid_reader);
test_array_free(test_rcu_pointer);
free(test_array);
free(tid_reader);
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