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Delay reader in loops, not us
[urcu.git]
/
test_rwlock.c
diff --git
a/test_rwlock.c
b/test_rwlock.c
index 4ec427b8be469e14f3f46b511b7d5744cc114d49..a6f31e31f1e7328de9a0dc2303c5591b2f2b41db 100644
(file)
--- a/
test_rwlock.c
+++ b/
test_rwlock.c
@@
-71,9
+71,15
@@
static volatile struct test_array test_array = { 8 };
static unsigned long duration;
static unsigned long duration;
-/* read-side C.S. duration, in
u
s */
+/* read-side C.S. duration, in
loop
s */
static unsigned long rduration;
static unsigned long rduration;
+static inline void loop_sleep(unsigned long l)
+{
+ while(l-- != 0)
+ cpu_relax();
+}
+
/*
* returns 0 if test should end.
*/
/*
* returns 0 if test should end.
*/
@@
-131,7
+137,7
@@
void *thr_reader(void *_count)
pthread_rwlock_rdlock(&lock);
assert(test_array.a == 8);
if (unlikely(rduration))
pthread_rwlock_rdlock(&lock);
assert(test_array.a == 8);
if (unlikely(rduration))
-
u
sleep(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()))
@@
-182,7
+188,7
@@
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 (
u
s))");
+ printf(" [-c duration] (reader C.S. duration (
in loop
s))");
printf(" [-a cpu#] [-a cpu#]... (affinity)");
printf("\n");
}
printf(" [-a cpu#] [-a cpu#]... (affinity)");
printf("\n");
}
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