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Delay reader in loops, not us
[urcu.git]
/
test_mutex.c
diff --git
a/test_mutex.c
b/test_mutex.c
index 29c840b284a3a8277edf4786d22d7c4ea4b584b7..6fd1746a1c03e35132cbdd34558befb97a5814a0 100644
(file)
--- a/
test_mutex.c
+++ b/
test_mutex.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.
*/
@@
-134,7
+140,7
@@
void *thr_reader(void *data)
pthread_mutex_lock(&lock);
assert(test_array.a == 8);
if (unlikely(rduration))
pthread_mutex_lock(&lock);
assert(test_array.a == 8);
if (unlikely(rduration))
-
u
sleep(rduration);
+
loop_
sleep(rduration);
pthread_mutex_unlock(&lock);
nr_reads++;
if (unlikely(!test_duration_read()))
pthread_mutex_unlock(&lock);
nr_reads++;
if (unlikely(!test_duration_read()))
@@
-185,7
+191,7
@@
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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