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Add verbose mode
[urcu.git]
/
test_rwlock.c
diff --git
a/test_rwlock.c
b/test_rwlock.c
index 1c29d73839adaec693c53a2315c8e0cd8a2a1be0..1b4a56e85b21d69d9167f20e7a5337858932a609 100644
(file)
--- a/
test_rwlock.c
+++ b/
test_rwlock.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"
@@
-69,6
+71,23
@@
static volatile struct test_array test_array = { 8 };
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.
*/
@@
-115,7
+134,7
@@
void *thr_reader(void *_count)
{
unsigned long long *count = _count;
{
unsigned long long *count = _count;
- 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());
while (!test_go)
"reader", pthread_self(), (unsigned long)gettid());
while (!test_go)
@@
-125,6
+144,8
@@
void *thr_reader(void *_count)
for (;;) {
pthread_rwlock_rdlock(&lock);
assert(test_array.a == 8);
for (;;) {
pthread_rwlock_rdlock(&lock);
assert(test_array.a == 8);
+ if (unlikely(rduration))
+ loop_sleep(rduration);
pthread_rwlock_unlock(&lock);
nr_reads++;
if (unlikely(!test_duration_read()))
pthread_rwlock_unlock(&lock);
nr_reads++;
if (unlikely(!test_duration_read()))
@@
-132,7
+153,7
@@
void *thr_reader(void *_count)
}
*count = nr_reads;
}
*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);
@@
-142,7
+163,7
@@
void *thr_writer(void *_count)
{
unsigned long long *count = _count;
{
unsigned long long *count = _count;
- 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)
@@
-162,7
+183,7
@@
void *thr_writer(void *_count)
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);
@@
-175,9
+196,14
@@
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;
@@
-185,7
+211,8
@@
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);
@@
-211,6
+238,8
@@
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;
@@
-223,6
+252,23
@@
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);
@@
-230,14
+276,23
@@
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);
+ }
tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
@@
-277,9
+332,15
@@
int main(int argc, char **argv)
exit(1);
tot_writes += count_writer[i];
}
exit(1);
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);
+
free(tid_reader);
free(tid_writer);
free(count_reader);
free(tid_reader);
free(tid_writer);
free(count_reader);
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