X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=test_urcu_timing.c;h=5f75bae448ee3a3e883377e3a6e284c725df7fc7;hb=daddf5b0bf1ec7aeaa56c278cf4c1dd1094c174a;hp=5065891a50af55b7bb10e9d1a788020f19a3bbbd;hpb=102d1d236ae6c788bb543dce3de410531aca346f;p=urcu.git

diff --git a/test_urcu_timing.c b/test_urcu_timing.c
index 5065891..5f75bae 100644
--- a/test_urcu_timing.c
+++ b/test_urcu_timing.c
@@ -87,11 +87,14 @@ static struct test_array *test_rcu_pointer;
 #define INNER_WRITE_LOOP 200U
 #define WRITE_LOOP ((unsigned long long)OUTER_WRITE_LOOP * INNER_WRITE_LOOP)
 
-#define NR_READ 10
-#define NR_WRITE 9
+static int num_read;
+static int num_write;
 
-static cycles_t reader_time[NR_READ] __attribute__((aligned(128)));
-static cycles_t writer_time[NR_WRITE] __attribute__((aligned(128)));
+#define NR_READ num_read
+#define NR_WRITE num_write
+
+static cycles_t __attribute__((aligned(128))) *reader_time;
+static cycles_t __attribute__((aligned(128))) *writer_time;
 
 void *thr_reader(void *arg)
 {
@@ -140,8 +143,8 @@ void *thr_writer(void *arg)
 	sleep(2);
 
 	for (i = 0; i < OUTER_WRITE_LOOP; i++) {
-		time1 = get_cycles();
 		for (j = 0; j < INNER_WRITE_LOOP; j++) {
+			time1 = get_cycles();
 			new = malloc(sizeof(struct test_array));
 			rcu_copy_mutex_lock();
 			old = test_rcu_pointer;
@@ -156,10 +159,10 @@ void *thr_writer(void *arg)
 				old->a = 0;
 			}
 			free(old);
+			time2 = get_cycles();
+			writer_time[(unsigned long)arg] += time2 - time1;
+			usleep(1);
 		}
-		time2 = get_cycles();
-		writer_time[(unsigned long)arg] += time2 - time1;
-		usleep(1);
 	}
 
 	printf("thread_end %s, thread id : %lx, tid %lu\n",
@@ -167,15 +170,27 @@ void *thr_writer(void *arg)
 	return ((void*)2);
 }
 
-int main()
+int main(int argc, char **argv)
 {
 	int err;
-	pthread_t tid_reader[NR_READ], tid_writer[NR_WRITE];
+	pthread_t *tid_reader, *tid_writer;
 	void *tret;
 	int i;
 	cycles_t tot_rtime = 0;
 	cycles_t tot_wtime = 0;
 
+	if (argc < 2) {
+		printf("Usage : %s nr_readers nr_writers\n", argv[0]);
+		exit(-1);
+	}
+	num_read = atoi(argv[1]);
+	num_write = atoi(argv[2]);
+
+	reader_time = malloc(sizeof(*reader_time) * num_read);
+	writer_time = malloc(sizeof(*writer_time) * num_write);
+	tid_reader = malloc(sizeof(*tid_reader) * num_read);
+	tid_writer = malloc(sizeof(*tid_writer) * num_write);
+
 	printf("thread %-6s, thread id : %lx, tid %lu\n",
 			"main", pthread_self(), (unsigned long)gettid());
 
@@ -212,5 +227,10 @@ int main()
 	printf("Time per write : %g cycles\n",
 	       (double)tot_wtime / ((double)NR_WRITE * (double)WRITE_LOOP));
 
+	free(reader_time);
+	free(writer_time);
+	free(tid_reader);
+	free(tid_writer);
+
 	return 0;
 }