projects
/
urcu.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
Add verbose mode
[urcu.git]
/
test_rwlock.c
diff --git
a/test_rwlock.c
b/test_rwlock.c
index 0fdaad60b9871641d30b7e1eca3007f3ff07ad06..1b4a56e85b21d69d9167f20e7a5337858932a609 100644
(file)
--- a/
test_rwlock.c
+++ b/
test_rwlock.c
@@
-71,6
+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.
*/
@@
-117,7
+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)
@@
-127,6
+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()))
@@
-134,7
+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);
@@
-144,7
+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)
@@
-164,7
+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);
@@
-177,6
+196,8
@@
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(" [-a cpu#] [-a cpu#]... (affinity)");
printf("\n");
}
@@
-239,7
+260,14
@@
int main(int argc, char **argv)
a = atoi(argv[++i]);
CPU_SET(a, &affinity);
use_affinity = 1;
a = atoi(argv[++i]);
CPU_SET(a, &affinity);
use_affinity = 1;
- printf("Adding CPU %d affinity\n", a);
+ 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) {
break;
case 'd':
if (argc < i + 2) {
@@
-248,13
+276,17
@@
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());
if (use_affinity
&& sched_setaffinity(0, sizeof(affinity), &affinity) < 0) {
"main", pthread_self(), (unsigned long)gettid());
if (use_affinity
&& sched_setaffinity(0, sizeof(affinity), &affinity) < 0) {
@@
-300,9
+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);
This page took
0.02538 seconds
and
4
git commands to generate.